the energy ladder theoretical myth or empirical truth results from a meta analysis abstract modern fuels are an important enabler of social and economic development still over 2 billion people rely on traditional biomass for their daily energy needs to overcome the negative effects of traditional energy on human health and the environment and to enhance the livelihood conditions of the poor a transition towards cleaner and more efficient forms of energy is needed understanding household fuel choice and fuel switching behaviour is of vital importance in search for policies to support such a transition process this paper adds to the existing energy transition literature in two ways first we provide a novel conceptual framework to analyze the decision environment underlying energy and fuel choices second we apply this framework in a meta analysis of existing choice models investigating energy switching and stacking behaviour in urban and rural areas in developing countries the meta analysis shows that socio economic household characteristics appear to receive most attention so far in identifying groups of fuel users while relatively little information is available on the impact of the external decision context on household energy choices

fuel demand elasticities for energy and environmental policies indian sample survey evidence india has been running large scale interventions in the energy sector over the last decades still there is a dearth of reliable and readily available price and income elasticities of demand to base these on especially for domestic use of traditional fuels this study uses the linear approximate almost ideal demand system la aids using micro data of more than 100 000 households sampled across india the la aids model is expanded by specifying the intercept as a linear function of household characteristics marshallian and hicksian price and expenditure elasticities of demand for four main fuels are estimated for both urban and rural areas by different income groups these can be used to evaluate recent and current energy policies the results can also be used for energy projections and carbon dioxide simulations given different growth rates for different segments of the indian population

the impact of different incentive schemes on asset prices abstract how people are incentivized is one of the main drivers of how they behave in laboratory asset markets we evaluate the impact of four trader incentive bonus bonus with cap linear and penalty on asset prices and trader behavior we find that i an asset with identical expected dividend shows price levels which differ by more than 100 percent depending on the incentive scheme subjects face in particular prices of markets populated by subjects with bonus incentives show the highest prices whereas those with penalty like incentivized subjects exhibit the lowest ii however subjects act approximately rational as different incentives generate different optimal price levels iii in markets where different subjects have different incentive schemes we find that those with bonus incentives exhibit a riskier investment behavior and prefer the riskier asset whereas subjects with penalty incentives invest conservatively and mainly hold cash since we find no difference in risk attitude of subjects prior to the experiment differences in investment behavior are induced by the applied incentives our results highlight that incentives on financial markets have a huge impact on asset prices and investment behavior

gender differences in the allocation of assets in retirement savings plans in 1995 40 percent of working men and 32 percent of working women were covered by a defined contribution dc plan a distinguishing characteristic of these plans is that workers can generally choose how their assets are invested using data from the 1992 and 1995 surveys of consumer finances scf this paper examines whether workers differ systematically by gender in the allocation of assets in dc plans previous researchers have reported that many workers tend to invest their retirement assets too conservatively and in particular that women are less likely than men to invest in risky assets such as stocks in the presence of an equity premium a lower propensity by women to invest in stocks could translate into large differences in the accumulation of financial wealth for retirement we establish that gender differences in investment decisions exist though they are more complicated than previous studies have suggested we show that these differences are not completely explained by differences in individual or household characteristics a few studies have examined gender differences in investment decisions vickie l bajtelsmit and jack l vanderhei 1997 richard p hinz et al 1997 these studies use administrative data and report that women tend to invest their retirement funds in less risky vehicles than men michael haliassos and carol c bertaut 1995 use the 1983 scf to examine why such a large fraction of households do not own any stock they report that gender does not have a significant effect on the probability of owning stock though gender differences are not the focus of their paper what these data sources lack haliassos and bertaut being the exception is a rich set of demographic and other variables on households that theory predicts should affect investment behavior this paper adds to the literature by examining gender differences in investment decisions conditioning on such variables the results highlight the importance of including marital status risk aversion measures and the portfolio of assets held outside dc plans when examining gender differences in investment decisions in these plans

thar she bursts reducing confusion reduces bubbles to explore why bubbles frequently emerge in the experimental asset market model of smith suchanek and williams 1988 we vary the fundamental value process constant or declining and the cash to asset value ratio constant or increasing we observe high mispricing in treatments with a declining fundamental value while overvaluation emerges when coupled with an increasing c a ratio a questionnaire reveals that the declining fundamental value process confuses subjects as they expect the fundamental value to stay constant running the experiment with a different context stocks of a depletable gold mine instead of stocks significantly reduces mispricing and overvaluation as it reduces confusion jel c91 d14 g11 g12

technological innovation and real investment booms and busts abstract we investigate why new high risk technologies can attract excessive and often unprofitable investment we develop an equilibrium model in which rational risk averse agents overinvest in a risky technology possibly to the point that its expected return is negative overinvestment results from relative wealth concerns which arise endogenously from the imperfect tradability of future endowments competition over future consumption leads to an indirect utility for wealth with keeping up with the joneses properties that can induce herding because overinvestment increases with the risk of the technology our model can explain why new risky technological innovations may promote investment bubbles

forests fuelwood and livelihoods energy transition patterns in eastern indonesia the central thesis of the energy ladder model is a unidirectional transition from primitive to advance fuel with increased affluence of households although now largely discredited this assumption remains a foundation of laissez faire policies that anticipate energy transition resulting spontaneous forest recovery with economic development our results suggest that such policies can undermine broader policy objectives and actually worsen forest conditions in rural indonesia based on a case study of forest margin communities in eastern indonesia we demonstrate that fuel subsidy reform did little to reduce rural household demand for fuelwood while dramatically increasing fuelwood demand for processing agricultural products our results show how household decisions related to fuel sources are affected by non economic considerations and external factors such as opportunities to sell fuelwood we argue that policy interventions that encourage energy transition of households do not necessarily improve forest conditions as household fuelwood use may be a symptom rather than a driver of deforestation and forest degradation thus policies to improve forest conditions should focus more on addressing the market environment of forest margin communities providing energy alternatives to small industries that are often the larger consumers of fuelwood

energy justice for all rethinking sustainable development goal 7 through struggles over traditional energy practices in sierra leone abstract with sustainable development goal 7 the united nations has declared its ambition to ensure access to modern energy for all by 2030 aside from broad appeals to differentiated responsibilities and greener technologies however the goal leaves significant procedural questions unaddressed this paper argues that the basic orientation of this approach is problematic undermining possibilities for progress toward energy justice and equitable development first in framing the issue of global energy distribution in broad techno managerial terms it obscures how particular geographies of energy poverty have been shaped by critical political economic influences second in privileging modern forms of energy and focusing on an end state of universal adoption over a broader goal of eliminating energy poverty the approach of sdg7 presents tangible hazards to many of those it seeks to benefit using a case study of sierra leonean rural cooking energy policy we demonstrate how the underlying mentality of sdg7 feeds into existing discourses that marginalise producers and users of traditional energy sources threatening important livelihoods with such evidence we argue that for justice in energy policy to be realised holistically there is a need to question how our knowledge of energy problems have emerged to avoid epistemologically autarchic policy positions

rank matters the impact of social competition on portfolio choice tournament incentives schemes have been criticized for inducing excessive risk taking among financial market participants in this paper we investigate how relative performance based incentive schemes and status concerns for higher rank influence portfolio choice in laboratory experiments we find that both underperformers and over performers adapt their portfolios to their current relative performance preferring either positively or negatively skewed assets respectively most importantly these results hold both when relative performance is instrumental for higher payoffs in a tournament and when it is only intrinsically motivating and not payout relevant we find no effects when no relative performance information is given

bubbles crashes and endogenous expectations in experimental spot asset markets1 spot asset trading is studied in an environment in which all investors receive the same dividend from a known probability distribution at the end of each of t 15 or 30 trading periods fourteen of twenty two experiments exhibit price bubbles followed by crashes relative to intrinsic dividend value when traders are experienced this reduces but does not eliminate the probability of a bubble the regression of changes in mean price on lagged excess bids number of bids minus the number of offers in the previous period p pt a f b 1 o l supports the hypothesis that a e d the one period expected value of the dividend and that f 0 where excess bids is a surrogate measure of excess demand arising from homegrown capital gains losses expectations thus when bt 1 o goes to zero we have convergence to rational expectations in the sense of fama 1970 that arbitrage becomes unprofitable the observed bubble phenomenon can also be interpreted as a form of temporary myopia tirole 1982 from which agents learn that capital gains expectations are only temporarily sustainable ultimately inducing common expectations or priors tirole 1982 four of twenty six experiments all using experienced subjects yield outcomes that appear to the chart s eye to converge early to rational expectations although even in these cases we get 0 and small price fluctuations of a few cents that invite scalping

relative wealth concerns and financial bubbles we present a rational general equilibrium model that highlights the fact that relative wealth concerns can play a role in explaining financial bubbles we consider a finite horizon overlapping generations model in which agents care only about their consumption though the horizon is finite competition over future investment opportunities makes agents utilities dependent on the wealth of their cohort and induces relative wealth concerns agents herd into risky securities and drive down their expected return even though the bubble is likely to burst and lead to a substantial loss agents relative wealth concerns make them afraid to trade against the crowd

on fuelwood consumption population dynamics and deforestation in africa abstract as the literature on fuelwood in africa has increased in quality in recent times it has become evident that generalizations about africa s fuelwood crisis need to be treated with great caution as a consequence some commonly held or orthodox beliefs may now need to be reexamined this paper subjects three such beliefs 1 the existence of a linear relationship between population growth fuelwood consumption and rates of fuelwood induced deforestation 2 that fuelwood induced deforestation approximates ripples spreading outward from urban consuming centers and 3 that land conversion to agriculture always reduces fuelwood supplies to close scrutiny the second and third assumptions are analyzed in the light of recently collected field data in the kano area of northern nigeria while the examination of the first is based on a reinterpretation of information from a wider range of invironments the paper concludes that although available data are inadequate for definitive conclusions to be drawn on the first count it seems likely that variations arising out of demographic differentials in urban populations in particular changes in per capita fuelwood consumption resulting from changes in consuming unit size distort direct links between population growth rates and rates of increase in fuel consumption further information on the demographic characteristics of african towns is needed for meaningful analyses of temporal changes in the affected variables to be undertaken the second and third assumptions are found to be inapplicable in the kano case howe1ver this should be interpreted much less as justification for their outright rejection than as a reminder of the great potential of time and space specific considerations for rendering universal rules locally inapplicable

market microstructure matters when imposing a tobin tax evidence from the lab trading in fx markets is dominated by two microstructures exchanges with market makers and otc markets without market makers using laboratory experiments we test whether the impact of a tobin tax is different in these two market microstructures we find that i in markets without market makers an unilaterally imposed tobin tax i e a tax haven exists increases volatility ii in contrast in markets with market makers we observe a decrease in volatility in unilaterally taxed markets iii an encompassing tobin tax has no impact on volatility in either setting efficiency does not vary significantly across tax regimes

modifying variability and correlations in winner take all contests we consider contests with a fixed proportion of winners based on relative performance special attention is paid to winner take all contests which we define as contests with relatively few winners receiving relatively large awards but we consider the full range of values of the proportion of winners if a contestant has the opportunity to modify the distribution of her performance what strategy is advantageous when the proportion of winners is less than one half a riskier performance distribution is preferred when this proportion is greater than one half it is better to choose a less risky distribution using a multinormal model we consider modifications in the variability of the distribution and in correlations with the performance of other contestants increasing variability and decreasing correlations lead to improved chances of winning when the proportion of winners is less than one half and the opposite directions should be taken for proportions greater than one half thus it is better to take chances and to attempt to distance oneself from the other contestants i e to break away from the herd when there are few winners a more conservative herding strategy makes sense when there are many winners our analytical and numerical results indicate that the probability of winning can change substantially as variability and or correlations are modified furthermore in a game theoretic setting in which all contestants can make modifications choosing a riskier less risky performance distribution when the proportion of winners is low high is the dominant best response strategy we briefly consider some practical issues related to the recommended strategies and some possible extensions

are women more risk averse we find that single women exhibit relatively more risk aversion in financial decision making than single men using u s sample data we examine household holdings of risky assets to determine whether there are gender differences in financial risk taking as wealth increases the proportion of wealth held as risky assets is estimated to increase by a smaller amount for single women than for single men gender differences in financial risk taking are also influenced by age race and number of children greater financial risk aversion may provide an explanation for women s lower levels of wealth compared with men s jel j16 d81 g11

evaluating the relative strength of product specific factors in fuel switching and stove choice decisions in ethiopia a discrete choice model of household preferences for clean cooking alternatives switching from conventional stoves to modern clean safe and efficient stoves will improve health and social welfare for the 2 7 billion people worldwide that lack reliable access to modern energy services in this paper we critically review some key theoretical dimensions of household consumer behaviour in switching from traditional biomass cooking stoves to modern efficient stoves and fuels we then describe the results of empirical research investigating the determinants of stove choice focusing on the relative strength of product specific factors across three wealth groups a stated preference survey and discrete choice model were developed to understand household decision making associated with cooking stove choice in addis ababa ethiopia the study found that with the exception of price and usage cost factors for the high wealth group the product specific factors that were investigated significantly affect stove and fuel choices the relative strength of factors was assessed in terms of marginal willingness to pay and provides some evidence that consumer preference for higher quality fuels and stoves tends to increase with increasing wealth

urban household energy use in tanzania prices substitutes and poverty abstract this paper presents the findings of the tanzanian urban household energy survey undertaken as part of the tanzania urban energy project household energy use varies by income group according to local fuel availability considerable differences between the marginal costs of supplying fuels and market prices paid by consumers have led to major misallocations of resources when the results of this survey are compared to the results of the 1987 household energy survey a significant shift by households toward kerosene and electricity away from fuelwood charcoal and lpg is shown to have taken place these shifts toward modern fuels are consistent with the claims of the households in the 1990 survey and can largely be explained by fuel prices finally an assessment of the lifeline tariff and the kerosene cross subsidy demonstrate that the latter is a more effective method of ensuring the basic energy needs of the urban and rural poor

from linear fuel switching to multiple cooking strategies a critique and alternative to the energy ladder model abstract promoting sustainable development requires evaluating the technical and policy options that will facilitate the adoption and use of energy efficient and less polluting cooking stoves and practices the transition from traditional to modern fuels and devices has been explained by the energy ladder model that suggests that with increasing affluence a progression is expected from traditional biomass fuels to more advanced and less polluting fuels in this paper we evaluate the energy ladder model utilizing data from a four year 1992 96 case study of a village in mexico and from a large scale survey from four states of mexico we show that an alternate multiple fuel model of stove and fuel management based on the observed pattern of household accumulation of energy options rather than the simple progression depicted in the traditional energy ladder scenario more accurately depicts cooking fuel use patterns in rural households the multiple fuel model integrates four factors demonstrated to be essential in household decision making under conditions of resource scarcity or uncertainty a economics of fuel and stove type and access conditions to fuels b technical characteristics of cookstoves and cooking practices c cultural preferences and d health impacts this model also allows better estimates of the expected fuelwood demand and indoor air pollution in rural households

the effect of trade openness on women s welfare and work life summary this study of 134 countries analyzes whether women are generally the losers or winners of globalization the results show that economic integration does not directly improve women s life expectancies women s access to primary and secondary education may improve slightly although women s welfare does not seem to improve more than that of men on the other hand economic integration does influence women s professional lives in developing countries trade openness increases female labor force participation in industrialized states it decreases the share of working women trade openness in developed countries increases the number of women employed in the service sector while in developing states it increases the number of women working in industrial jobs and in agriculture

costly search and mutual fund flows this paper studies the flows of funds into and out of equity mutual funds consumers base their fund purchase decisions on prior performance information but do so asymmetrically investing disproportionately more in funds that performed very well the prior period search costs seem to be an important determinant of fund flows high performance appears to be most salient for funds that exert higher marketing effort as measured by higher fees flows are directly related to the size of the fund s complex as well as the current media attention received by the fund which lower consumers search costs

preferences for domestic fuel analysis with socio economic factors and rankings in kolkata india abstract the choice of domestic fuel is a matter of great concern for households and policy makers in india this paper investigates the demand for domestic fuels when households face four choices fuelwood coal kerosene and lpg the study is based on a survey of 500 households in kolkata india the demand estimates are conducted using a two stage process where the first stage investigates choice and the second the quantity used determinants of fuel demand are identified and their relative importance shown extending the study the paper also analyses the choice of the main cooking fuel in terms of the households stated rankings of six fuels for five attributes the policy discussion indicates that subsidies have less potential to reduce polluting fuels such as coal and fuelwood due to weak cross price elasticities while increased availability of lpg and potentially also increased awareness of indoor air pollution have greater prospect

factors underlying rural household energy transition a case study of china abstract this paper identifies factors underlying the energy transition of rural households in china based on province level panel data for years of 1991 2014 it indicates that there exists the energy stacking process of rural household energy transition characterized by the significant consumption inertia effects of traditional biomass energy tbe traditional commercial energy tce and advanced commercial energy ace respectively the insignificant substitution effect of tce and ace for tbe and the significant partial substitution of ace for tce with regard to the factors underlying rural household energy transition 1 per capita disposal income is negatively correlated with tbe tce and ace consumption 2 the number of motorcycles is positively correlated with tce and ace consumption 3 the number of firewood saving stoves and the price for ace are positively correlated with tbe consumption 4 household size and the number of motorcycles and the number of appliances are positively correlated with ace consumption 5 education level is positively correlated with tbe but negatively with tce consumption 6 the number of rural energy management institutions is positively correlated with tbe but negatively correlated ace consumption therefore some policy implications are discussed

what impedes efficient adoption of products evidence from randomized sales offers for fuel efficient cookstoves in uganda consumers failure to adopt products with health and wellbeing benefits apparently far greater than their costs has consistentlychallenged the widespread use of health improving technologies a sales offer combining free trial time payments and the option of returning the product can overcome barriers such as liquidityconstraints and poor information about benefits and usability we tested this sales offer and alternatives in an experiment with a fuel efficient charcoal stove in urban uganda and a fuel efficient wood stove in rural uganda this offer dramatically increased uptake in urban kampala from 4 to 46 and in rural mbarara from 5 to 57

household energy transition in sahelian cities an analysis of the failure of 30 years of energy policies in bamako mali abstract in west africa household energy transition has so far mainly been synonymous with the conversion from woodfuel to lpg this paper analyses the failure of 30 years of household energy transition policies in mali by combining two major frameworks multi level perspective mlp and social practice theory spt based on empirical field studies undertaken in bamako since 1985 and on literature review two historical narratives are presented one focusing on the dynamics of the dominant woodfuel regime and the other on changes in cooking practices the mlp analysis showed that all elements seemed aligned for destabilization of the dominant regime yet the woodfuel regime has resisted and is maintained the spt analysis showed that the stability of cooking eating and fuel purchasing practices did not converge towards and even opposed the transition to lpg this paper shows that the mlp and spt frameworks offer complementary perspectives for understanding transitions in developing countries it concludes that the definition and implementation of energy policies need to integrate an analysis of daily practices and should consider that energy transition is not synonymous with the replacement of one fuel by another but with new opportunities to diversify ways of cooking

judgemental overconfidence self monitoring and trading performance in an experimental financial market we measure the degree of overconfidence in judgment in the form of miscalibration i e the tendency to overestimate the precision of one s information and self monitoring a form of attentiveness to social cues of 245 participants and also observe their behaviour in an experimental financial market under asymmetric information miscalibrated traders underestimating the conditional uncertainty about the asset value are expected to be especially vulnerable to the winner s curse high self monitors are expected to behave strategically and achieve superior results our empirical results show that miscalibration reduces and self monitoring enhances trading performance the effect of the psychological variables is strong for men but non existent for women

gender differences in competitiveness and risk taking comparing children in colombia and sweden we explore gender differences in preferences for competition and risk among children aged 912 in colombia and sweden two countries differing in gender equality according to macro indices we include four types of tasks that vary in gender stereotyping when looking at competitiveness running skipping rope math and word search we find that boys and girls are equally competitive in all tasks and all measures in colombia unlike the consistent results in colombia the results in sweden are mixed with some indication of girls being more competitive than boys in some tasks in terms of performance change whereas boys are more likely to choose to compete in general boys in both countries are more risk taking than girls with a smaller gender gap in sweden

the inflow effect trader inflow and price efficiency abstract we investigate the impact of cash and trader inflow on price efficiency in multi period experimental asset markets implementing eight treatments with 672 subjects we find that i the joint inflow of cash and traders triggers strong overvaluation and massive price run ups inflow effect remarkably the effect occurs in almost all of the 30 markets with joint cash and trader inflow and is very robust the effect even prevails in markets with complete and symmetric fundamental information we further show that ii in treatments with the joint inflow of cash and traders prices crash to fundamentals towards maturity of the asset the analysis of traders beliefs reveals that iii despite fundamental values staying constant beliefs about fundamentals co move with upwardly trending prices finally we report a speculative motive only among the optimists in treatments where we observe the inflow effect

reassessing the energy ladder household energy use in maun botswana abstract in the context of sub saharan africa s rapid urbanization improved insight into urban energy use is increasingly important based on the predictions of energy transition theory a regional shift from biomass to modern fuels has long been expected to occur in tandem with urban growth however trends observed in the region s towns and cities have often not followed such patterns and fuelwood continues to be important in most areas this paper examines the practical relevance of transition theory using a recent case study conducted by the authors in maun botswana and results previously reported in the literature it finds that despite the long term link between socio economic development and increased modern fuel consumption at the national scale the notion of transition does not accurately reflect ongoing energy use patterns at lower levels of aggregation this is chiefly because its model of household fuel switching largely dismisses the importance of active and strategic decision making by urban consumers and their responsiveness to structural factors such as relative fuel prices as the botswana case illustrates this weakness can significantly distort expectations and policies around urban fuelwood use

household energy demand in kenya an application of the linear approximate almost ideal demand system la aids abstract this paper estimates price and fuel expenditure elasticities of demand by applying the linear approximate almost ideal demand system la aids to 3665 households sampled across kenya in 2009 the results indicate that motor spirit premium msp automotive gas oil ago and lubricants are price elastic while fuel wood kerosene charcoal liquefied petroleum gas lpg and electricity are price inelastic kerosene is income elastic while fuel wood charcoal lpg electricity msp and ago are income inelastic the results also reveal fuel stack behaviour that is multiple fuel use among the households main policy implications of the results include increasing the penetration of alternative fuels as well as provision of more fiscal incentives to increase usage of cleaner fuels this not withstanding however the household income should be increased beyond a certain point for the household to completely shift and use a new fuel

overuse of wood based bioenergy in selected sub saharan africa countries review of unconstructive challenges and suggestions excessive wood consumption for energy and over dependence on fossil fuel based energy are fundamental issues of importance regarding the destruction of environmental sanity in this respect international communities are seeking to explore opportunities on how to encourage aggressive deployment of technologies for clean and sustainable development and possibly renewable the kyoto protocol on climate change meeting in 1997 with about 160 countries in attendance has been used as one of the platform of discourse on carbon emissions reduction strategies advocated strategies agreed include increase in renewable energy consumption via modern techniques massive deployment of renewable energy systems on a global scale will ensure a reasonable displacement of oil based energy production which is the main source of anthropogenic greenhouse gases in sub saharan africa limited access to modern energy in the region has stepped up reliance on bioenergy consumption in form of wood fuel and charcoal resulting to attendant effects on human health environment and the biodiversity in general in view of the foregoing this study presents a review on the current situations of unconstructive effects in the overuse of fuel wood and its charcoal derivative for energy consumption in three selected sub saharan african countries nigeria ghana and uganda in conclusion suggestions on how to confront the challenges associated with the over exploitation conditions of fuel wood in the region are put forward the suggestions could be part of the pursuit to increase electricity availability reliability and security with lower level of emissions in the region

modeling choice of fuelwood source among rural households in malawi a multinomial probit analysis abstract this paper addresses two questions what determines household s choice of fuelwood source and what are the environmental consequences of fuelwood collection choices we address these questions by estimating the multinomial probit model using survey data for households surrounding chimaliro and liwonde forest reserves in malawi after controlling for heterogeneity among households we find strong substitution opportunities across fuelwood collection sources attributes of the fuelwood sources size and species composition and distance to the sources are the most important determinants of fuelwood choice further results show that customary managed forests generate environmental benefits by reducing pressure on both plantation forests and forest reserves these findings support the need to strengthen community based institutions to manage local forest resources

gender inequality and economic growth a cross country analysis abstract this paper investigates empirically the determinants of economic growth for a set of semi industrialized export oriented economies in which women provide the bulk of labor in the export sector the primary hypothesis tested is that gender inequality which contributes to women s relatively lower wages was a stimulus to growth via the effect on exports during 1975 95 empirical analysis shows that gdp growth is positively related to gender wage inequality in contrast to recent work which suggests that income inequality slows growth evidence also indicates that part of the impact of gender wage inequality on growth is transmitted through its positive effect on investment as a share of gdp

confronting an unsolvable problem deforestation in malawi abstract in malawi the low price of firewood from customary land is a barrier to reforestation if government were to grow trees and sell them at current firewood prices subsidies would be so great that only a very small part of wood deficits could be met nor will farmers plant enough trees since many other cash crops give higher returns than firewood moreover there is no way to raise the price of firewood to levels where adequate amounts of tree planting would become economic therefore deforestation cannot be reversed under the circumstances the most important obligation is to minimize the damage done to agricultural land as trees disappear this means that all of the relatively few trees planted must fulfill a soil protection function a tree planting strategy based on these realities will be very different from a strategy that assumes the deforestation problem can be solved

rural residential energy transition and energy consumption intensity in china abstract this paper examines the impact of residential energy transition on residential energy consumption per capita recpc and identifies the underlying drivers in rural china based on province level panel data for years 1991 2014 in rural china it is shown that energy transition from traditional biomass energy tbe to traditional commercial energy tce significantly decreases recpc while energy transition from tbe or tce to advanced commercial energy ace significantly increases recpc as is revealed by the energy stacking model per capita income has a significantly negative impact on recpc and the impact of lagged recpc is opposite due to the regulation of energy price there exists price distortion in china s rural energy market and the price mechanism functions poorly besides factors including juvenile dependency ratio and education level significantly reduce recpc therefore it is vital to integrate rural energy into national energy strategic system facilitate energy transition process and introduce the market system reform of rural energy and continue to improve the education level of rural residents in rural china

joint production and consumption in traditional households fuelwood and crop residues in two districts in nepal forest conversion by agricultural households is the leading cause of deforestation yet we know little about agricultural household use of forest and tree products this article measures household production of and demand for fuelwood and fuel substitutes in two districts in nepal women play a larger role in collection in the district dependant on production from common forestlands men and agricultural capital are more important inputs in the district dependant on production from private lands the article also measures demand elasticities for fuelwood combustible agricultural residues and improved stoves a technological substitute each by household income group all price and income demand elasticities are less than one the substitution elasticities between residues and fuelwood are less than one residues are more important substitutes for low income households and improved stoves are more important substitutes for high income households

female labor force participation and household dependence on biomass energy evidence from national longitudinal data this research received financial support from the food policy institute at the australian national university

welfare implications of community forest plantations in developing countries the orissa social forestry project community forest plantations are a common intervention in developing countries we use household and remote sensing data from orissa india to estimate welfare effects of community forest plantations in terms of the value of decreased collection times plantations afford users a selection model accounting for possible jointness in site location and productivity is used to estimate collection production functions for different household labor categories in natural and community forests two measures of an opportunity cost of time are used to determine welfare effects of time saved due to community forests we find access to community forests is important to marginal productivity of different labor categories but to different degrees highlighting the need to disaggregate household data when analyzing these interventions we also find substantial welfare improvements from time savings for many households and villages

boundaries of the tournament pricing effect in asset markets evidence from experimental markets 1 introduction when traders in experimental asset markets are compensated according to a tournament contract a salary plus bonus scheme in which a trader s bonus is proportional to the amount by which that trader exceeds the average performance in that market we observe violation of convergence results obtained in experiments that did not use such compensation schemes this effect of tournament incentives has been documented by james and isaac 2000 in this paper we search for what smith and williams 1990 have termed the boundaries of falsification for the proposition that tournament contracts affect asset market prices specifically we examine the robustness of the tournament pricing effect on market prices on several fronts first we ask whether the pricing effect survives when not all traders are being compensated according to the beat the market contract second we ask whether the tournament pricing effect is robust with respect to perturbations in the trader s compensation contract third we ask whether the pricing effect is observed in two period asset life markets hereafter 2 p a l markets as it is in 15 period asset life markets hereafter 15 p a l markets 1 section 2 presents the background of the current experiments the research conjectures and the experimental design the experimental results are contained in section 3 section 4 discusses a phenomenon that we had not encountered until these experiments section 5 offers the conclusions and thoughts for further reflection 2 conjectures and experimental design background james and isaac 2000 was the first paper to assess the effect on asset market prices of tournament contracts imposed at the individual level this is distinct from an earlier paper by brown harlow and starks 1996 that examines how individual portfolio managers allocation decisions change in response to such contracts but that does not address the issue of any effects on prices of the assets the portfolio managers are trading brown harlow and starks is itself a specific application of a wider literature on using tournament contracts to address principal agent conflicts see also nalebuff and stiglitz 1983 bull schotter and weigelt 1987 and ehrenburg and bognanno 1990 the issue of the effect on market prices is arguably the most important one surrounding the imposition of tournament contracts on portfolio managers because it is these capital market prices that help allocate savings to different forms of investment naturally misleading capital market prices can potentially lead to catastrophically misdirected capital spending 2 this key aspect of james and isaac that it addresses the effect at the market level of using tournament incentives at the individual level is also present in this paper the research objective of this paper is to document the eventual market level ramifications of varying the use of tournament contracts the nature of those variations will be discussed here the effect of tournament incentives on asset market prices prior to this paper it has been established that the way in which traders in experimental asset markets are compensated on an individual basis can significantly change the prices that eventuate at the market level in a seminal paper on experimental asset markets smith suchanek and williams 1988 hereafter ssw find that as groups of traders were called back for repeat sessions of a 15 p a l market which can be viewed as an experimental implementation of the theoretical market analyzed by tirole 1982 the market price of the asset bubbled less in each successive 15 period asset market this suggests that the no trading common expectations equilibrium derived by tirole might be reached eventually but requires experience on the part of the pool of traders of note in ssw the traders are compensated such that an experimental dollar corresponds to a u s dollar that is the traders respective experimental dollar holdings deriving variously from cash endowments dividend payments and capital gains are translated one for one into u

modeling energy and development an evaluation of models and concepts most global energy models are developed by institutes from developed countries focusing primarily on issues that are important in industrialized countries evaluation of the results for asia of the ipcc sres models shows that broad concepts of energy and development the energy ladder and the environmental kuznets curve can be observed in the results of the models however improvements can be made in modeling the issues that underlie these concepts like traditional fuels electrification economic structural change income distribution and informal economies given the rapidly growing importance of energy trajectories of developing countries for global sustainability the challenge for the future is to develop energy models that include all these aspects of energy and development

stoves or sugar willingness to adopt improved cookstoves in malawi malawi has set a target of adoption of two million improved cookstoves ics by 2020 meeting this objective requires knowledge about determinants of adoption particularly in rural areas where the cost of traditional cooking technologies and fuels are non monetary and where people have limited capacity to purchase an ics we conducted a discrete choice experiment with 383 households in rural malawi asking them if they would chose a locally made ics or a package of sugar and salt of roughly equal value six months later we assessed adoption and stove use patterns sixty six percent of households chose the ics we find that having a larger share of crop residues in household fuel supply awareness of the environmental impacts of woodfuel reliance time the primary cook devotes to collecting fuelwood and peer effects at the village level increase the odds of choosing the ics having a large labor supply for fuelwood collection and experience with a non traditional cooking technology decreased the odds of choosing the ics in a rapid assessment six months after stoves were distributed we found 80 of households were still using the ics but not exclusively our findings suggest considerable potential for wide scale adoption of ics in malawi

difference in interim performance and risk taking with short sale constraints abstract absent much theory empirical works often rely on the following informal reasoning when looking for evidence of a mutual fund tournament if there is a tournament interim winners have incentives to decrease their portfolio volatility as they attempt to protect their lead while interim losers are expected to increase their volatility so as to catch up with winners we consider a rational model of a mutual fund tournament in the presence of short sale constraints and find the opposite interim winners choose more volatile portfolios in equilibrium than interim losers several empirical works present evidence consistent with our model however based on the above informal argument they appear to conclude against the tournament behavior we argue that this conclusion is unwarranted we also demonstrate that tournament incentives lead to differences in interim performance for otherwise identical managers and that mid year trading volume is inversely related to mid year stock return

gender wage inequality and export led growth in south korea this article investigates the relationship between gender wage inequality and export led growth in south korea the persistent gender wage gap in korea s manufacturing sector is found to be linked to women s segregation in the country s major export industries where real wage growth has lagged productivity growth despite favorable market conditions that might drive up women s wages relative to those of men the interaction of state and firm level hiring training and promotion practices that structure women s and men s employment opportunities differently appear to have resulted in a relatively weaker fall back position for women in labour markets econometric results are consistent with the hypothesis that women s weaker fall back position limits their ability to bargain for wage increases commensurate with productivity growth further evidence is presented which links gender wage inequality to the growth of korean exports

myopic risk taking in tournaments abstract there is a common notion that incentive schemes in the financial industry trigger myopia and risk taking in some sense this contrasts with the concept of myopic loss aversion mla which implies that myopia mitigates risk taking a number of experimental studies support the mla hypothesis by showing that people take less risk the more frequently their investments are evaluated in this paper we show experimentally that if subjects are exposed to tournament incentives the standard mla effect disappears rather there is a tendency towards more risk taking the more frequently investments are evaluated

socio economic determinants of charcoal expenditures in tanzania evidence from panel data abstract compared to firewood charcoal is a relatively clean and convenient fuel nevertheless the mass production of charcoal can contribute substantially to deforestation rendering it imperative to regulate charcoal use this article uses nationally representative panel data on tanzania conducted in 2008 and 2010 to examine how charcoal expenditures change over time within any given household the focus of the analysis will be on identifying certain socio economic factors that affect charcoal use at the household level the framing of the analysis on variation in time within each household addresses the omitted variable bias that often undermines inference from comparisons across different households we find that while charcoal expenditures increase with household income the rise in charcoal use with income is relatively gradual household size is unrelated to charcoal expenditures but urban rural differences in fuel choice are large even though we include household fixed effects in all specifications in this regard policymakers and urban planners need to pay particular attention to the role of urbanization in predicting trends in charcoal expenditures in developing countries like tanzania

declining tree stocks in african countries abstract the paper first discusses evidence of the loss of tree stocks in farming regions of sub saharan african countries and the associated ecological changes taking place the second part discusses the economic merits and limitations of two forms of public investment in afforestation i in forestry management and plantation programs with special reference to watershed and shelterbelt plantings and ii in various forms of support research extension and nurseries for the development of agro or farm forestry in areas where tree stocks are becoming seriously depleted the ecological and economic benefits would be significant for both types of investment shelterbelt and watershed plantings have the advantage of having well defined effects but are limited in scope by their relatively large budgetary and labor requirements it is widely acknowledged that they would need to be complemented by agro forestry development programs by involving the farmers themselves in tree planting and stabilization of soils the development of agro forestry practices in africa would offer prospects of a major increase in afforestation rates at significantly lower budgetary costs per hectare of farmland protected however the risks and difficulties of obtaining a good farmer response are not small and success would depend on economic policies that were far more favorable towards investment in agriculture and natural resources than they have been so far in the region

household energy elasticities and policy implications for pakistan abstract this study estimates fuel expenditure and price elasticities of household fuels in pakistan the burning of biomass is harmful to health and the environment and may cause preventable morbidity and mortality it is important to investigate how households fuel choices are linked to prices so that governments can consider appropriate steps to enhance the consumption of clean fuels using three pooled cross sectional surveys from pakistan and applying the linear approximate almost ideal demand system la aids model we found that all fuel types except natural gas were price inelastic at the national level and for urban households in rural areas natural gas and lpg were found to be more price elastic compared to urban areas simple policy simulations based on our results suggest that in order to reduce indoor air pollution by encouraging the adoption of clean fuels lpg and piped natural gas governments should subsidies clean fuels rather than imposing taxes on solid fuels moreover in the case of pakistan a subsidy for lpg should be preferred over a subsidy for piped natural gas as it produces a more cost effective reduction in solid fuel use

the effects of government spending on deforestation due to agricultural land expansion and co2 related emissions this paper examines the effect of changes in government spending level and composition on deforestation due to agricultural land expansion and related carbon dioxide emissions our theoretical model shows an unintended consequence from increased government spending and widening social safety nets in developing countries where agricultural land expansion significantly affects forest cover there is an increase in deforestation and carbon dioxide emissions from land use change our empirical tests show that an increase in total government spending significantly increases forest land clearing for agricultural production in the short run leading to more carbon dioxide emissions however there is no long run statistically significant effect on the steady state forest cover and carbon dioxide emissions

woodland deforestation by charcoal supply to dar es salaam abstract a dynamic model of deforestation around dar es salaam is constructed linking marginal production cost and demand for charcoal the exploited area forms a wedge which expands inland as net price of charcoal increases wood is primarily harvested at the edge of the wedge simulations show that under reasonable assumptions charcoal price increases from 1800 to 1958 tsh bag in 10 years supply area from 3416 to 6886 km2 and harvest from 2 05 to 2 66 mill m3 year increment of woody biomass within the wedge will supply little charcoal for many years because woodland density does not affect production costs therefore reduced demand for charcoal and shift to other forms of energy are the factors controlling deforestation

the forbidden fuel charcoal urban woodfuel demand and supply dynamics community forest management and woodfuel policy in malawi abstract this article examines woodfuel policy challenges and opportunities in malawi two decades after woodfuel crisis narratives and counter narratives a nuanced examination of woodfuel supply demand use and markets illuminated options to turn stagnant policies based on charcoal bans and fuel substitution into proactive realistic ones acknowledging woodfuel dominance and its socio economic importance findings revealed growing spatially differentiated woodfuel deficits in southern and central malawi and around blantyre zomba and lilongwe cities poverty limited electricity access reliability and generation exacerbated by tariff subsidies and complex fuel allocation decisions restricted energy ladder transitions from woodfuels to electricity producing an enduring urban energy mix dominated by charcoal thereby increasing wood consumption diverse socio political interests prevented lifting of the charcoal ban despite progressive forest laws despite implementation challenges lessons already learnt efficiency and poverty reduction arguments limited government capacity growing illegal production of charcoal in forest reserves and its staying power make targeted community based forest management cbfm approaches more practical for regulated commercial production of woodfuels than the status quo new differentiated policies should include commercial woodfuel production and licensing for revenue and ecological sustainability under cbfm or concessions within and outside selected reserves an enterprise based approaches for poverty reduction smallholder private tree growing woodfuel energy conserving technologies improved electricity supply and agricultural productivity

nonspeculative bubbles in experimental asset markets lack of common knowledge of rationality vs actual irrationality we report the results of an experiment designed to study the role of speculation in the formation of bubbles and crashes in laboratory asset markets in a setting in which speculation is not possible bubbles and crashes are observed the results suggest that the departures from fundamental values are not caused by the lack of common knowledge of rationality leading to speculation but rather by behavior that itself exhibits elements of irrationality much of the trading activity that accompanies bubble formation in markets where speculation is possible is due to the fact that there is no other activity available for participants in the experiment

effect of fuelwood scarcity and socio economic factors on household bio based energy use and energy substitution in rural ethiopia abstract in ethiopia biomass is predominantly utilized for household energy needs often using inefficient rudimentary stoves which cause adverse environmental and welfare effects this paper examined the contribution of biomass resources to rural household energy use and energy substitution the analysis applied the ordinary least square in the final stage estimation of fuelwood and overall biomass energy consumption by using predicted shadow prices the paper used tobit model to estimate charcoal and agricultural fuel consumption due to the presence of censoring an increase in fuelwood shadow price was associated with reduced household fuelwood consumption with price elasticity of 0 38 the cross price elasticity between fuelwood and agricultural fuels revealed no evidence of energy substitution which conforms to the findings of previous studies household access to electricity was associated with lower household biomass energy utilization but kerosene was not fuelwood substitute household energy use conformed to the fuel stacking or multiple fuel use concept but households preferred modern energy options as welfare increased in areas where modern energy is available this suggests that there is a promising prospect for fuel transition but access to modern energy and economic growth have key roles the findings suggest that a concerted policy effort is required that would help diversify rural livelihoods improve living standards and encourage economic growth encourage inter fuel substitution through improved modern energy access and afforestation to increase biomass supply

hroot hamburg registration and organization online tool abstract hroot hamburg registration and organization online tool is a web based software designed for managing participants of economic experiments this package provides important features to assure a randomized invitation process based on a filtered pre specified subject pool and a complete documentation of the selection procedure for potential participants of an experiment

the effects of structural change and economic liberalisation on gender wage differentials in south korea and taiwan this paper investigates the sources of divergent trends in gender wage differentials in two important newly industrialised economies nies south korean and taiwan as these economies have entered the post industrial phase of development gender wage differentials in taiwan s manufacturing sector have widened while in korea they have narrowed decomposition analysis is used to broadly identify sources of change in gender wage differentials multivariate regression analysis is relied on to differentiate the impact on the gender wage gap of 1 macro levels policies 2 institutional factors and 3 shifts in labour demand and supply in addition to the predictable effects of several standard supply side variables in taiwan physical capital mobility is found to have contributed to a wider gender earnings gap women s greater concentration in industries where capital is mobile may explain this result the effects of capital mobility in korea appears to differ which may be due to the dissimilar characters of outward fdi from that country copyright 2000 by oxford university press

risk taking behavior in mutual fund tournaments abstract we develop a two period model of a brown et al j finance 51 1996 85 mutual fund tournament in which two fund managers with unequal midyear performances compete for new cash inflows when one of the managers is an exogenous benchmark winning managers index and losing managers gamble however when both managers are active the winning manager is more likely to gamble expecially when the midyear performance gap is high or when stocks offer high returns and low volatility empirical evidence that winning managers gamble has been documented by other researchers but it has been interpreted as evidence against the tournament model with a dataset of weekly returns from 1984 to 1996 for 660 mutual funds we text for other tournament effects predicted by the model our results suggest a role for the theory of tournaments in studies of mutual fund behavior

career concerns of mutual fund managers we examine the labor market for mutual fund managers using data from 1992 1994 we find that termination is more performance sensitive for younger managers we identify possible implicit incentives created by the termination performance relationship the shape of the termination performance relationship may give younger managers an incentive to avoid unsystematic risk direct effects of portfolio composition may also give younger managers an incentive to herd into popular sectors consistent with these incentives we find that younger managers hold less unsystematic risk and have more conventional portfolios promotion incentives and market responses to managerial turnover are also studied

application of an almost ideal demand system aids to ethiopian rural residential energy use panel data evidence abstract it is well known that poor rural households in low income economies are reliant on traditional fuels to meet basic domestic energy needs but little is known about the specific underlying socio economic drivers of residential fuel choices in ethiopia i used the linear approximation almost ideal demand system laaids with normalized prices to compute expenditure elasticity and a multinomial logit model mlm to examine household fuel use the laaids model result showed that expenditure was elastic for modern fuels but inelastic for traditional fuels regression results from the mlm indicated that fuel choice behaviour of rural households could be more accurately described as fuel stacking behaviour as opposed to the energy ladder hypothesis in rural areas household fuel choice may be constrained by limited access to commercial fuels and efficient cook stoves supply dependency and affordability consumer preferences and a web of other intricate factors rural households had less incentive for fuel switching due to underlying factors and the availability of fuel wood without direct financial cost with continued deforestation and receding forests households are expected to develop inter fuel substitution and switching behaviour conditional on access to modern energy technologies

how tournament incentives affect asset markets a comparison between winner take all tournaments and elimination contests abstract we investigate the impact of investment managers tournament incentives on investment strategies and market efficiency distinguishing between winner take all tournaments wta where a minority wins and elimination contests ec where a majority wins theoretically we show that investment managers play heterogeneous strategies in wta and homogeneous strategies in ec and markets are more prone to mispricing in wta than in ec experimentally we find that investment managers play more heterogeneous strategies in wta than in ec but this does not trigger significant differences in prices moreover prices in wta and ec do not differ significantly from markets composed of linearly incentivized subjects

achieving fair trade through a social tariff regime a policy thought experiment this paper pursues a fair trade policy thought experiment that i presents the social index tariff structure sits regime and ii simulates a multilateral sits regime using bilateral trade flow data a sits regime seeks to promote strong labour and environmental standards and other initiatives that engender human development equality and sustainability it does this by institutionalising both the incentives and means for countries to enhance their performance in these areas we demonstrate that a multilateral sits regime would generate substantial and stable flows of development funds while incentivising an international race to the top in labour and environmental standards and more broadly in human development equality and sustainability

where ricardo and mill rebut and confirm arguments of mainstream economists supporting globalization most noneconomists are fearful when an emerging china or india helped by their still low real wage rates outsourcing and miracle export led developments cause layoffs from good american jobs this is a hot issue now and in the coming decade it will not go away prominent and competent mainstream economists enter into the debate to educate and correct warm hearted protestors who are against globalization here is a fair paraphrase of the argumentation that has been used recently by alan greenspan jagdish bhagwati gregory mankiw douglas irwin and economists john or jane doe spread widely throughout academia yes good jobs may be lost here in the short run but still total u s net national product must by the economic laws of comparative advantage be raised in the long run and in china too the gains of the winners from free trade properly measured work out to exceed the losses of the losers this is not by mysterious fuzzy magic but rather comes from a sharing of the trade induced rise in total global vectors of the goods and services that people in a democracy want never forget to tally the real gains of consumers alongside admitted possible losses of some producers in this working out of what schumpeter called creative capitalist destruction correct economic law recognizes that some american groups can be hurt by dynamic free trade but correct economic law vindicates the word creative destruction by its proof sic that the gains of the american winners are big enough to more than compensate the losers

tournament rewards and risk taking this article considers a lazear rosen tournament model where agents can influence both the spread of their output distribution risk taking and its mean the unique equilibrium induces excessive risk taking and a low level of effort by modifying the tournament to give the highest prize to the agent with the most moderate output a low level of risk taking and high level of effort can be sustained as an equilibrium the first result can be useful to understand the relative performance evaluation puzzle of executive compensation and the second result can be useful to understand puzzling workplace norms promoting mediocrity

technological innovation and dispersion environmental benefits and the adoption of improved biomass cookstoves in tigrai northern ethiopia this paper empirically analyzes adoption and fuel savings efficiency of improved biomass cookstove technology using survey data from a cross section of 200 farm households from the highlands of tigrai northern ethiopia results indicate that these farm households are willing to adopt improved biomass cookstove innovations if this leads to economic savings moreover results suggest significant positive environmental externalities on a per household basis we found that adopters collect about 70 kg less wood and about 20 kg less dung each month the adoption of improved biomass cookstoves reduces harvest pressure on local forest stands assuming an average of 120 metric tons of biomass per ha we find the potential reduction in deforestation amounts to some 1400 ha per year an important saving further the reduced use of dung as a fuel has a positive impact on soil productivity in agriculture

do option like incentives induce overvaluation evidence from experimental asset markets abstract one potential reason for bubbles evolving prior to the financial crisis was excessive risk taking stemming from option like incentive schemes in financial institutions by running laboratory asset markets we investigate the impact of option like incentives on price formation and trading behavior the main results are that i we observe significantly higher market prices with option like incentives than linear incentives ii we further find that option like incentives provoke subjects to behave differently and to take more risk than subjects with linear incentives iii we finally show that trading at inflated prices is rational for subjects with option like incentives since it increases their expected payout

producing woodfuel for urban centers in the democratic republic of congo a path out of poverty for rural households woodfuel is a renewable energy source with good potential for climate change mitigation in the democratic republic of congo drc the sector employs over 300 000 people for the supply of kinshasa alone but the benefits to the poor are often unknown this paper analyzes the contribution of commercial woodfuel production to livelihoods and poverty reduction in the drc woodfuel revenues especially those of charcoal contribute substantially to producers household income ranging from 12 for fuelwood producers around kisangani to 75 for charcoal producers around kinshasa it supports basic needs and investments in other livelihood activities for 82 of charcoal producers and 65 of fuelwood producers which helps to reduce poverty the contribution of woodfuel commercialization to poverty reduction should be part of energy and forestry policies

when households run out of fuel responses of rural households to decreasing fuelwood availability ntcheu district malawi this paper examines strategies used by rural households in ntcheu district malawi to cope with a decreasing fuelwood availability fieldwork was carried out in 1990 and 1991 with increasing distance to woodlands households initially collected further away spending more time on collection but when distance to woodlands increased further households returned to nearby places using less time for collection and switching to lower quality woods results indicate that distance to collection place and collection time are not reliable indicators of fuelwood shortages households within the same village differed in collection strategies particularly as regards collection distance and collection frequency households that tended to collect further away and more frequently were large in size with more female adults these households also collected more wood even per capita compared to smaller households suggesting that smaller households economized on fuelwood use this paper supports the idea that level of fuelwood used is not only determined by fuelwood availability but more by labour availability

risk taking in selection contests abstract we study contests where the strategic variable is the degree of risk taking rather than the amount of effort the selection efficiency of such contests is examined we show that the selection efficiency of a contest may be improved by limiting the competition in two ways by having a small number of contestants and by restricting contestant quality

woodfuels livelihoods and policy interventions changing perspectives in the 1970s it appeared that fuelwood use was growing rapidly and this could have major adverse impacts on the resource and poor users by the mid 1980s revised assessments indicated that there was less of a problem than had been foreseen and much less of a need for forestry interventions to maintain supplies as a result many of the latter were sharply scaled back additional information and analysis that has become available since the 1980s support the view that there is no need for large scale interventions devoted just to provision of fuelwood however declining access to supplies or markets can raise significant problems in some areas and for particular categories of user growing urban demand for charcoal can also cause local problems in particular in africa the potentials for appropriate forms of intervention are discussed

is financial instability male driven gender and cognitive skills in experimental asset markets abstract the hypothesis that price stability would reliably increase with the fraction of women operating in financial markets has been frequently suggested in policy discussions to test this hypothesis we conducted 10 male only 10 female only and 10 mixed gender experimental asset markets and compared the effects of gender composition confidence risk attitude and cognitive skills male and female markets have comparable volatility and deviations from fundamentals whereas mixed gender markets are substantially more stable on the other hand higher average cognitive skills of the group are associated with reduced market volatility individual level analysis shows that subjects with higher cognitive skills trade at prices closer to fundamental values and earn significantly higher profits similarly mixed markets exhibit lower mispricing particularly for traders with lower cognitive skills our results are demonstrated to hold in other experimental asset market studies suggesting that a mixed gender composition reduces mispricing across different types of asset markets

the impact of the household decision environment on fuel choice behavior abstract consumer preferences for fuels and alternative cookstove technologies in kenya are examined focusing on household internal and external determinants driving choice behavior in a choice experiment the potential for a transition towards cleaner and more efficient fuels and technologies is assessed by zooming in on three fuel stove combinations we find substantial demand and positive willingness to pay for the fuel stove combinations in three locations representing different decision environments demand is significantly higher in the peri urban and the resource abundant rural location than in the resource scarce rural location the presence of better developed consumer markets for fuels in these locations functions as an important driver for cookstove adoption although charcoal and ethanol stoves are preferred over improved firewood stoves continued firewood usage is expected energy switching behavior cannot be substantiated instead energy stacking is more likely where charcoal and ethanol add to and extend a household s energy portfolio

the effect of marketing messages and payment over time on willingness to pay for fuel efficient cookstoves abstract smoke from inefficient biomass cookstoves contributes to global climate change and kills approximately four million people per year cooking technologies such as manufactured fuel efficient cookstoves that mitigate the negative effects of traditional cookstoves exist but adoption rates are low the international development community debates whether this low adoption of fuel efficient cookstoves is due to a lack of adequate product information or due to household financial constraints we ran vickery second price auctions in rural uganda to elicit willingness to pay for fuel efficient cookstoves comparing the effect of informational marketing messages and time payments on willingness to pay a randomized trial tested the following marketing messages this stove can improve health this stove can save time and money and both messages combined none of the messages consistently increased willingness to pay in a second experiment we compared willingness to pay for two different contracts one with payment due within a week and one with equal installment payments over 4 weeks consistent with household financial constraints time payments raised willingness to pay by 40

the delegated lucas tree we analyze the effects of the observed increased share of delegated capital for trading strategies and equilibrium prices by introducing delegation into a standard lucas exchange economy in equilibrium some investors trade on their own account but others decide to delegate trading to professional fund managers flow performance incentive functions describe how much capital clients provide to funds at each date as a function of past performance convex flow performance relations imply that the average fund outperforms the market in recessions and underperforms in expansions when the share of capital that is delegated is low all funds follow the same strategy however when the equilibrium share of delegated capital is high funds with identical incentives employ heterogeneous trading strategies a group of managers borrows to take on a levered position on the stock thus fund returns are dispersed in the cross section and the outstanding amounts of borrowing and lending increase the relation between the share of delegated capital and the sharpe ratio typically follows an inverse u shaped pattern jel g11 g12 g23 d02 d81 over the past thirty years there has been a gradual but profound change in the way money is invested in financial markets while almost 50 of u s equities were held directly in 1980 by 2007 this proportion decreased to approximately 20 see french 2008 what are the equilibrium implications of this shift in particular how does the increased presence of delegation affect trading strategies and prices to analyze the link between the incentives of financial institutions and asset prices we introduce financial intermediaries into a lucas exchange economy rather than study an optimal contracting problem we rely on empirical regularities inflows and assume a convex relation betweenflows and performance relative to the market as documented for example in chevalier and ellison 1997

population tenure and natural resource management the case of customary land area in malawi abstract this paper analyzes the factors determining conversion of woodlands to agricultural land changes in tree cover and maize yield for the last two and a half decades by using aerial photos and field survey data in 57 communities in malawi the econometric analysis revealed that population pressure led to greater land conversion but had no effect on yield or tree cover changes areas where greater changes in traditional tenure systems have occurred are associated with reduction in tree cover and expansion of agricultural land these results suggest the importance of strengthening institutions to manage natural resources

a review of bubbles and crashes in experimental asset markets this paper discusses the literature on bubbles and crashes in the most commonly used experimental asset market design introduced by smith et al it documents the main findings based on the results from 41 published papers 3 book chapters and 20 working papers

performance in competitive environments gender differences even though the provision of equal opportunities for men and women has been a priority in many countries large gender differences prevail in competitive high ranking positions suggested explanations include discrimination and differences in preferences and human capital in this paper we present experimental evidence in support of an additional factor women may be less effective than men in competitive environments even if they are able to perform similarly in non competitive environments in a laboratory experiment we observe as we increase the competitiveness of the environment a significant increase in performance for men but not for women this results in a significant gender gap in performance in tournaments while there is no gap when participants are paid according to piece rate this effect is stronger when women have to compete against men than in single sex competitive environments this suggests that women may be able to perform in competitive environments per se

rural household energy use and its determinants in china how important are influences of payment for ecosystem services vs other factors abstract fuelwood is an essential environmental good for livelihood in rural china heavy reliance on fuelwood is associated with numerous negative externalities due to decades of rapid economic growth in china we hypothesize that the increase in rural household income would reduce reliance on fuelwood using data from a survey of 481 households conducted in 2014 we examined the effects of two payments for ecosystem services programs the conversion of cropland to forest program ccfp and the ecological welfare forest program ewfp on energy use along with other factors we found that the ccfp did not significantly affect fuel choice nor the quantity of fuelwood used but households with more forestland in ewfp were less likely to adopt modern fuels and likely to use more fuelwood household per capita annual income was the main factor promoting adoption of modern fuels while household size was the most important factor determining the quantity of fuelwood used per capita overall the gradually increasing adoption of modern fuels has thus far not resulted in any significant abandonment of fuelwood fuelwood remains the dominant fuel across all income groups suggesting that households in the study area are in the early stages of the energy transition

assessing the potential demand for biofuel by combining economics and psychology a focus on proximity applied to jatropha oil in africa abstract bio energy demand is known to be influenced by geographical origin and social equity this paper aims to highlight the influence of the proximity between biomass production and energy consumption on the demand for alternative bio fuels in the context of burkina faso we explore potential demand for jatropha oil jatropha curcas as a diesel substitute among engine owners survey data are based on a between groups design one group of respondents experiencing a local supply chain while the other a global one results show that proximity has a significant effect on potential demand itself and on the formation and strength of beliefs regarding jatropha oil in a local supply chain context the demand is superior and seems to be guided more by a certain economic and technical rationality conversely the prospect of a jatropha oil produced outside the village restrains demand and this latter is more determined by contextual factors and social interaction our analysis confirms that demand does not only depend on technical and economic factors such as price but also on the integration of the biomass production and processing in the socioeconomic life of local rural populations understanding demand construction and assessing underlying beliefs are key success factors for bio energy projects