cost benefit assessment of energy efficiency investments accounting for future resources savings and risks in the australian residential sector this article focuses on the impact of the discount rate on cost benefit assessment of investment options for residential building efficiency an integrated thermal modeling life cycle costing approach is applied to an extensive sample of dominant house designs for australian conditions the relative significance of predicted thermal performance and the applied discount rate on the present value of energy savings from alternative investment scenarios is investigated costs and benefits are also evaluated at the economy wide scale including carbon pricing considerations and for a test case household faced with alternative investment options at the point of construction the influence of the applied discount rate on produced cost benefit calculations is investigated as is the interaction between critical cost benefit input parameters findings support that the discounting framework is the primary driver of difference in estimates about costs and benefits of higher standards of efficiency in the residential sector results demonstrate that agreement on a low discount rate based on sustainability principals would prioritise those projects with significant environmental benefits

tradeoffs and complementarities in the adoption of improved seeds fertilizer and natural resource management technologies in kenya there is widespread consensus that agricultural technology has an important role to play for poverty reduction and sustainable development there is no consensus however about the types of technologies that are best suited for smallholder farmers in africa while some consider natural resource management nrm technologies as most appropriate others propagate input intensification with a stronger role of the private sector in the public debate these two strategies are often perceived as incompatible environmental non governmental organizations in particular consider low external input strategies as the only sustainable form of agriculture a view that has considerable influence on policymakers and the international donor community most existing research studies on smallholder innovation focus on the adoption of individual technologies so that comparisons between different types of technologies in the same context are not easily possible we use representative data from maize producing households in kenya and a multivariate probit model to analyze the adoption of different types of technologies simultaneously results indicate that nrm technologies and strategies that build on external inputs are not incompatible interesting complementarities exist which are not yet sufficiently exploited because many organizations promote either one type of technology or the other but rarely a combination of both

women s work and economic development using a cross country dataset and microdata from india and thailand we examine how women s work status changes with economic development several clear patterns emerge women s labor force participation first declines and then rises with development women move from work in family enterprises to work as paid employees fertility declines and gender gaps in education narrow women s education levels and those of their spouses appear to be important determinants of women s labor market activities broad welfare indicators such as mortality rates and education levels indicate that women s well being improves on average with development both in absolute terms and relative to men

reap what you sow agricultural technology urbanization and structural change abstract this paper studies how productivity enhancing agricultural technology affects urbanization by provoking structural change we investigate these issues using a natural experiment in the united states the results show that technologies which improve crop productivity lead to a less urbanized economy as economic activity relocates from manufacturing and services towards agriculture the effects are highly persistent and are driven by the technology increasing agricultural labor demand our findings highlight the potentially unintended disruptive force of innovative technologies

market barriers to energy efficiency abstract discussions of energy policy in an environmentally constrained world often focus on the use of tax instruments to internalize the external effects of energy utilization or achieve specified reductions in energy use in the most cost effective manner a substantial literature suggests however that significant opportunities exist to reduce energy utilization by implementing technologies that are cost effective under prevailing economic conditions but that are not fully implemented by existing market institutions this paper examines the theory of the market for energy using equipment showing that problems of imperfect information and transaction costs may bias rational consumers to purchase devices that use more energy than those that would be selected by a well informed social planner guided by the criterion of economic efficiency consumers must base their purchase decisions on observed prices and expectations of post purchase equipment performance if it is difficult or costly for individuals to form accurate and precise expectations the level of energy efficiency achieved by competitive markets will vary from the socially efficient outcome such market barriers suggest a role for regulatory intervention to improve market performance at prevailing energy prices

agricultural household models extensions applications and policy this book presents the basic model of an agricultural household that underlies most of the case studies undertaken so far the model assumes that households are price takers and is therefore recursive the decisions modeled include those affecting production and the demand for inputs and those affecting consumption and the supply of labor comparative results on selected elasticities are presented for a number of economies the empirical significance of the approach is demonstrated in a comparison of models that treat production and consumption decisions separately and those in which the decisionmaking process is recursive the book summarizes the implications of agricultural pricing policy for the welfare of farm households marketed surplus the demand for nonagricultural goods and services the rural labor market budget revenues and foreign exchange earnings in addition it is shown that the basic model can be extended in order to explore the effects of government policy on crop composition nutritional status health saving and investment and to provide a more comprehensive analysis of the effects on budget revenues and foreign exchange earnings methodological topics primarily the data requirements of the basic model and its extensions along with aggregation market interaction uncertainty and market imperfections are discussed the most important methodological issues the question of the recursive property of these models is also discussed

nutritional status during an economic crisis evidence from russia between 1996 and 1998 russia experienced a spectacular decline in economic activity which was followed by a dramatic rebound between 1998 and 2000 we use panel data to examine the impact of variation in household resources on six dimensions of nutritional status distinguishing longer run from short term fluctuations in resources nutritional status is very resilient to short term variation in household resources gross energy intake adult weight and child stature change very little as expenditure deviates from its long run average longer run resources have a substantively large positive and significant effect on energy intake diet quality adult weight and child stature the evidence indicates that individuals and households are able to weather short term fluctuations in economic resources at least in terms of maintaining body mass and energy intake increased globalisation has resulted in many less developed countries becoming more integrated into world markets this integration carries both benefits and costs for the populations of those countries an oft cited cost is elevated risk of exposure to economic fluctuations which has been manifest in several spectacular economic crises across the globe in the last few decades there is however little evidence on the extent to which individuals and families are able to mitigate deleterious effects of these economic upheavals on their well being in spite of its importance for understanding the consequences of globalisation this article provides new evidence on this issue specifically we examine the relationship between several dimensions of nutritional well being and variation in household resources during the russian economic crisis in the late 1990s the economies of the former soviet bloc have been especially volatile since the transition to market based economies which began in the early 1990s nowhere has this been more true than in russia where in the last half of 1998 real gdp collapsed by around 30 and then rapid growth brought the economy back to its pre crisis level by 2000 the time path of changes in gdp is closely mimicked by changes in the incomes and expenditures of russian households using extremely rich longitudinal household survey data from the russian longitudinal monitoring survey rlms we examine the impact of these large fluctuations in household resources on nutrient intake and on anthropometric markers of nutritional status at the individual level in so doing we address an important issue in the literature regarding the extent to which households in low income settings are able

food aid food prices and producer disincentives in ethiopia although the short term aims of food aid are well conceived strong concerns have been voiced regarding the long term impacts of such aid on incentives for agricultural producers in recipient countries this article examines the statistical link between food aid shipments and food prices in ethiopia over the period 1996 2006 monthly data from three markets and three commodities are used to estimate a system of seemingly unrelated regression models for food prices results indicate that previous year food aid shipments reduce prices in all producer and consumer markets these effects however appear to be limited to the set of internationally traded commodities that are domestically marketed a recursive regression procedure is used to identify the food aid threshold at which a negative aid effect emerges food aid shipments that constitute less than 10 of domestic production appear to be benign but shipments above this level show signs of being disruptive to local markets we use a simple policy simulation to argue that production sensitive targeting e g conditioning food aid on local food production would help to circumvent disincentive effects copyright 2009 oxford university press

normal markets market imperfections and energy efficiency abstract the conventional distinction between economic and engineering approaches to energy analysis obscures key methodological issues concerning the measurement of the costs and benefits of policies to promote the adoption of energy efficient technologies the engineering approach is in fact based upon firm economic foundations the principle of lifecycle cost minimization that arises directly from the theory of rational investment thus evidence that so called market barriers impede the adoption of cost effective energy efficient technologies implies the existence of market failures as defined in the context of microeconomic theory problems of imperfect information and bounded rationality on the part of consumers for example may lead real world outcomes to deviate from the dictates of efficient resource allocation a widely held contrary view that the engineering view lacks economic justification is based on the fallacy that markets are normally efficient

money matters the role of yields and profits in agricultural technology adoption despite the growing attention to technology adoption in the economics literature knowledge gaps remain regarding why some valuable technologies are rapidly adopted while others are not this paper contributes to our understanding of agricultural technology adoption by showing that a focus on yield gains may in some contexts be misguided we study a technology in ethiopia that has no impact on yields but that has nonetheless been widely adopted using three waves of panel data we estimate a correlated random coefficient model and calculate the returns to improved chickpea in terms of yields costs and profits we find that farmers comparative advantage does not play a significant role in their adoption decisions and hypothesize that this is due to the overall high economic returns to adoption despite the limited yield impacts of the technology our results suggest economic measures of returns may be more relevant than increases in yields in explaining technology adoption decisions

a farm household model for agri food policy analysis in developing countries application to smallholder farmers in sierra leone this paper presents a generic farm household model for use in the context of developing countries to gain knowledge on food security and rural poverty alleviation under different policy options it is a static positive programming model which simultaneously solves a set of microeconomic farm models reproducing the behaviour of representative individual farm households this model is designed to capture key features of developing countries agriculture such as the non separability of production and consumption decisions due to market imperfections the inter linkage between transaction costs and market participation decisions the interaction among farm households for factor markets and the seasonality of resource use model use is illustrated in this paper by simulating the impact of rice seed policy on the livelihood of representative smallholder farmers in sierra leone results show that the seed policy would improve farm productivity and boost household income but that it is not sufficient to fight poverty since 90 of the surveyed farm households would continue to live below the extreme poverty line of 1 usd equivalent per person per day

energy conservation investment do consumers discount the future correctly we argue that the apparently high discount rates attributed to investors making energy conservation investments are not irrational or the result of some market failure rather they may result from an investor recognizing that many conservation investments entail substantial sunk costs in the presence of these costs and uncertainty over future conservation savings consumers should use a higher hurdle rate for investment than if there were no uncertainty simulations suggest that the hurdle rate should be about four times greater than the standard rate an implication of our model is that tax subsidies for the purchase of conservation capital are likely to be ineffective we discuss alternative policy approaches which are more likely to increase energy efficient investment namely mandatory efficiency standards and energy taxes

rural nonfarm activities and agricultural crop production in nigeria although most rural households are involved in the farm sector the nonfarm sector has grown significantly in recent decades and its role in rural development has become increasingly important this article examines the effect of participation in nonfarm activities on crop expenses of farm households in nigeria the relationship is modeled using a nonseparable agricultural household model that suggests that participating in nonfarm activities can relax the credit constraints facing farm households and reduce risk thereby helping households improve farm production and smooth consumption over time the results show that participation in nonfarm activities by nigerian farmers has a positive and significant effect on crop expenses and in particular on payments for hired labor and inorganic fertilizers separate analysis of the six geopolitical zones in nigeria indicates that it is in the south south and south east zones where nonfarm participation appears to induce more hiring of labor the results support the hypothesis that nonfarm participation helps relax liquidity constraints but suggests how that liquidity is used is zone specific in general the results also indicate that liquidity is used more to pay for inputs into staple production as opposed to cash crops

modeling energy technology choices which investment analysis tools are appropriate abstract a variety of tools from modern investment theory appear to hold promise for unraveling observed energy technology investment behavior that often appears anomalous when analyzed using traditional investment analysis methods this paper reviews the assumptions and important insights of the investment theories most commonly suggested as candidates for explaining the apparent energy technology investment paradox the applicability of each theory is considered in the light of important aspects of energy technology investment problems such as sunk costs uncertainty and imperfect information the theories addressed include the capital asset pricing model the arbitrage pricing theory and the theory of irreversible investment enhanced net present value methods are also considered the relevance of the capital asset pricing model and the arbitrage pricing theory given the special characteristics of energy technology investment decisions appears limited to the value of the theories conceptual insights in contrast the theory of irreversible investment and enhanced net present value are found to provide more useful modeling and analysis methods each capable of providing important insights into the energy technology investment paradox

the effect of nonfarm income on investment in bulgarian family farming this article documents a relationship between nonfarm income primarily earnings and pensions and agricultural investment in bulgaria specifically expenditures on working capital variable inputs such as feed seed and herbicides and investment in livestock among those with positive spending on farm inputs the estimated elasticity of these expenditures with respect to nonfarm income is 0 14 nonfarm income also has an effect on the number of households that purchase farm animals with an estimated elasticity of 0 35 the use of nonfarm income for farm investment is consistent with the presence of credit constraints as is the fact that less than one percent of farmers report outstanding debts for agricultural purposes yet many farm households take out large unsecured loans for other purposes primarily to cover consumption expenditures implying that credit is available but that farmers prefer not to use borrowed funds to finance agricultural investment this would suggest that increases in the availability of agricultural credit may have little effect on farm outcomes whereas increases in nondebt financed sources of liquidity such as subsidies or transfers may better stimulate investment

maize of the ancestors and modern varieties the microeconomics of high yielding variety adoption in malawi farmer adoption of seed fertilizer technology can be characterized in terms of several interrelated choices one choice is whether to adopt only seed only fertilizer or both components of the technology adoption another choice relates to the extent of land allocation to modem and to farmers seed varieties extent of adoption a third choice is the level per hectare of either seed or fertilizer or both intensity of adoption 1 in the literature about agricultural innovations in developing countries some theoretical models treat more than one aspect of the adoption decision 2 but most econometric approaches have portrayed only the discrete adoption choice for a single input although farmers often adopt parts or components of recommended technology neither the theoretical nor the econometric models have included the level of fertilizer applied to farmers varieties in the analysis of seed fertilizer adoption 3 two features of the seed fertilizer adoption decision as defined above are particularly evident in malawi first even when farmers adopt hybrid maize they continue to allocate a part of their maize area to their own varieties microeconomic theory provides four explanations for land allocation to both modern and traditional seed variet

from volatility to value analysing and managing financial and performance risk in energy savings projects abstract many energy related investments are made without a clear financial understanding of their values risks and volatilities in the face of this uncertainty the investor such as a building owner or an energy service company will often choose to implement only the most certain and thus limited energy efficiency measures conversely commodities traders and other sophisticated investors accustomed to evaluating investments on a value risk and volatility basis often overlook energy efficiency investments because risk and volatility information are not provided fortunately energy efficiency investments easily lend themselves to such analysis using tools similar to those applied to supply side risk management accurate and robust analysis demands a high level of understanding of the physical aspects of energy efficiency which enables the translation of physical performance data into the language of investment with a risk management analysis framework in place the two groups energy efficiency experts and investment decision makers can exchange the information they need to expand investment in demand side energy projects in this article we first present the case for financial risk analysis in energy efficiency in the buildings sector we then describe techniques and examples of how to identify quantify and manage risk finally we describe emerging market based opportunities in risk management for energy efficiency

promoting clean energy investment an empirical analysis of property assessed clean energy abstract from 2008 to 2010 a handful of property assessed clean energy pace programs offered property secured loans to homeowners for residential clean energy investments this analysis uses difference in differences models and synthetic counterfactual models to estimate the effect of three california pace programs on residential photovoltaic installations while pace programs do not offer superior terms to other solar financing options we find that pace financing increases solar installations by approximately 3 8 watts per owner occupied household per quarter a 108 increase over the mean watts per owner occupied household

2002 lawrence r klein lecture liquidity and asset prices we broadly define liquid assets or monetary assets as any asset that can be readily sold in the market and can be held by a number of people in succession before maturity we ask in what environment is the circulation of liquid assets essential for the smooth running of the economy by developing a canonical model of a monetary economy i e where the circulation of liquid assets is essential we are able to examine the interaction between liquidity asset prices and aggregate economic activity

rainfall shocks and the gender wage gap evidence from indian agriculture summary in the context of climate change and its effect on poverty previous studies have shown that productivity shocks in agriculture such as rainfall variability affect wages adversely none of the studies however consider the heterogeneity in the impact of these shocks on agricultural wages by gender a feature which has been studied for demand shocks in urban labor markets for developed countries using national sample survey data for india from 1993 to 2007 a district level panel dataset is created to examine how a rainfall shock affects the gender wage gap the study shows that both female and male wages are positively related to rainfall shocks hence future studies must study the impact of labor market shocks in rural areas on both female and male wages separately it also finds that the female to male wage ratio is significantly positively associated with a rainfall shock in regions where rainfed rice is cultivated i e low high rainfall reduces increases the female to male ratio the study demonstrates that this result is due to a positive association of demand for female labor with rainfall in these rainfed rice growing regions this finding is consistent with the greater marginal value of female labor in rice cultivation which is also a crop highly sensitive to rainfall variability under rainfed conditions the paper concludes that the effect of a rainfall shock on the gender wage gap depends upon the gender roles underlying the technology of production which varies across cropping systems

asset prices and liquidity in an exchange economy i develop an asset pricing model in which financial assets are valued for their liquidity the extent to which they are useful in facilitating exchange as well as for being claims to streams of consumption goods the implications for average asset returns the equity premium puzzle and the risk free rate puzzle are explored in a version of the model that nests the work of mehra and prescott 1985

demand side management overcoming market barriers or obscuring real costs abstract this paper compares two approaches to estimating the net benefits of a demand side management program that subsidizes the purchase of efficient equipment the total resource cost trc test suggests net benefits of us 6 9 million estimates based on consumer s surplus yield an estimated net loss of us 6 3 million this gap is due to differences in estimates of participants net benefits market failures do not appear to be significant and thus cannot explain much of the gap the more plausible explanation is that the trc uses a lower discount rate than participants use for themselves and it omits some costs

gender and policy roles in farm household diversification in zambia summary many african governments faced with low rural incomes and food security challenges have developed input subsidy programs in order to enhance agricultural productivity this paper adds to recent literature analyzing the effects of input subsidy programs and gender on crop diversification in sub saharan africa we investigate the effect of zambia s input subsidy program on crop allocation patterns by gender in relatively land abundant zambia we test both single equation crop diversification index models and multivariate regression models of cropland allocation our study finds that input subsidies reduce crop diversification more in male headed households than in female headed households further multivariate regression results confirm that this occurs because female headed households expand maize acreage less in response to the input subsidy these findings suggest that greater cropland diversification will be maintained if input subsidy programs are accompanied by loan programs and other assistance which support leadership roles for women in farm households

factors influencing willingness to pay for the energy star label abstract in the united states nearly 17 of greenhouse gas emissions come from residential energy use increases in energy efficiency for the residential sector can generate significant energy savings and emissions reductions consumer labels such as the us environmental protection agency s energy star promote conservation by providing consumers with information on energy usage for household appliances this study examines how the energy star label affects consumer preferences for refrigerators the results of an online survey of a national sample of adults suggest that consumers are on average willing to pay an extra 249 82 349 30 for a refrigerator that has been awarded the energy star label furthermore the results provide evidence that respondent willingness to pay was motivated by both private energy cost savings and public environmental benefits

subsistence and semi subsistence farming in selected eu new member states factor and cluster analysis are used to analyse the attitudes and perceptions of agricultural households in five eu new member states towards farming commercialisation and barriers to and drivers for an increased integration in agricultural markets the contribution of unsold output to the total household income is valued a stepwise linear regression is employed to detect important variables explaining the degree of agricultural market integration of farm households the analysis indicates that subsistence farming is of utmost importance for the rural poor and particularly in bulgaria and romania the proportion of consumption from own production manual cultivation techniques and distance to an urban centre negatively affect output sales rural development policies targeted at rural physical and market infrastructure might relieve some of these constraints

can crop purchase programs reduce poverty and improve welfare in rural communities evidence from the food reserve agency in zambia the last decade has seen a resurgence of parastatal crop marketing institutions in sub saharan africa many of which cite improving food security and incomes as key goals however there is limited empirical evidence on the welfare effects of these programs this article considers one such program the zambian food reserve agency fra which purchases maize from smallholder farmers at a pan territorial price that typically exceeds maize market prices in surplus production areas using both fixed effects and an instrumental variables approach combined with correlated random effects we estimate the effects of the fra s maize marketing activities on smallholder farm household welfare results suggest that fra activities have positive direct welfare effects on the small minority of smallholder households that are able to sell to it however the results also suggest negative indirect fra effects as higher levels of fra activity in a district are associated with higher levels of poverty

wage and labor supply effects of illness in cote d ivoire and ghana instrumental variable estimates for days disabled abstract sickness should make individuals less productive but there are problems in measuring this effect first how is adult morbidity measured in a household survey second how is the impact or morbidity on productivity inferred if earning is partly used to improve health self reported functional activity limitation due to illness is considered an indicator of morbidity for wage earners and self employed people to deal with both the measurement and joint determination problems an instrumental variable estimation approach is used where local food prices and health services instrument for disability days that reduce wages by at least 10 and hours by 3 or more

price policy poverty and power within rural west african households abstract this paper explores the impact of agricultural price policy on poverty in west africa a region in which prices are an important tool for raising rural household incomes a game theoretic collective model of household income generation and resource allocation is developed that incorporates three features typical of west african rural households preference heterogeneity among women and men individual resource control and power mediated bargaining over resource control in the face of changes in households economic environments to explore price effects the model is used to simulate the income impacts of large increases in cotton prices accompanying fast paced agricultural liberalisation in burkina faso in the 1980s the paper shows that where resources are controlled individually by household members rather than pooled pareto efficiency in income generation does not hold the impact of agricultural price policy on poverty is mediated by bargaining over resource control within households bo

the population problem theory and evidence this study is concerned with the relationships among population growth poverty and environmental degradation with particular focus on the situation in developing countries the author rejects the concept of a general theory of fertility behavior in favor of an interpretation of these relationships which might be applicable to certain situations in the poorest parts of the indian subcontinent and sub saharan africa such situations include unacceptable risks of maternal death for poor illiterate women and a condemnation to extreme poverty in conditions of the deterioration of local resources and of the environment the author concludes that population growth rates are too high in certain specific areas and that an appropriate policy reaction to such conditions would be to try to change the options that men and women face so that their reasoned choice would be to lower their fertility

social influence and collective action effects on farm level soil conservation effort in rural kenya abstract this paper analyzes the effects of social influence and participation in collective action initiatives on soil conservation effort among smallholder farmers in lake naivasha basin kenya we apply binary and ordered probit models in a two stage regression procedure to cross sectional data collected through a household survey among randomly selected smallholder farmers smallholder farming systems in the research area are associated with practices that render farmlands susceptible to soil erosion causing negative impacts on land and the environment therefore strategies that encourage soil conservation are likely to also offer solutions for dealing with agri environmental challenges and poverty alleviation results indicate that social capital facilitates participation in collective action initiatives which then influence individual soil conservation efforts neighborhood social influences subjective norms gender education level farm size access to credit and livestock ownership also emerge as key determinants of soil conservation effort policy implications drawn by this study encourage strategies to increase participation and effectiveness in collective action initiatives as a boost to soil conservation implementation of soil conservation practices could also be encouraged through awareness increasing instruments facilitating access to agricultural micro credit and paying attention to gender related challenges on knowledge access and rights over land and other natural resources

actuarial pricing of energy efficiency projects lessons foul and fair recent market convulsions in the energy industry have generated a plethora of post mortem analyses on a wide range of issues including accounting rules corporate governance commodity markets and energy policy while most of these analyses have focused on business practices related to wholesale energy trading there has been limited analysis of retail energy services particularly energy efficiency projects we suggest that there were several business concepts and strategies in the energy efficiency arena whose inherent value may have been masked by the larger failure of companies such as enron in this paper we describe one such concept namely actuarial pricing of energy efficiency projects which leverages a portfolio based approach to risk management first we discuss the business drivers contrasting this approach with conventional industry practice we then describe the implementation of this approach including an actuarial database pricing curves and a pricing process compatible with commodity pricing we conclude with a discussion of the prospects and barriers for the further development of transparent and quantifiable risk management products for energy efficiency a prerequisite for developing energy efficiency as a tradeable commodity we address these issues from an experiential standpoint drawing mostly on our experience in developing and implementing such strategies at enron

inefficiency of male and female labor supply in agricultural households evidence from uganda this article analyzes the efficiency of the intra household allocation of female and male labor inputs in agricultural production in a collective household model spouses optimal on farm labor supply is such that the marginal rate of technical substitution between male and female labor is equated over different crops using the uganda national household survey 2005 06 we test whether this condition holds by estimating production functions and controlling for endogeneity using a method proposed by gandhi navarro and rivers 2009 we find that women are less productive than men that there is more female labor input on low productivity parcels and that men are relatively more productive on female controlled plots compared with male controlled plots total farm output could be higher and pareto improvements could be possible if male labor was reallocated to female controlled plots and or female labor was reallocated to male controlled plots

determinants and effects of income diversification amongst farm households in burkina faso using four years of household data from three agroecological zones in burkina faso sahelian sudanian and guinean the article examines the determinants and effects of household income diversification harvest shortfalls and terms of trade are found to drive diversification but land constraints do not income diversification is associated with higher incomes and food consumption and more stable income and consumption over years

natural resource collection work and children s schooling in malawi abstract this paper presents results of research that investigates if long hours of work spent by children in fuel wood and water collection activities i e natural resource collection work influence the likelihood that a child aged 6 14 attends school potential endogeneity of resource collection work hours is corrected for using two stage conditional maximum likelihood estimation data from the 1997 1998 malawi integrated household survey ihs conducted by the malawi national statistics office nso in conjunction with the international food policy research institute ifpri are used the study finds that malawian children are significantly involved in resource collection work and their likelihood of attending school decreases with increases in hours allocated to this work the study further shows that girls spend more hours on resource collection work and are more likely to be attending school while burdened by this work consequently girls may find it difficult to progress well in school however girls are not necessarily less likely to be attending school results further show that presence of more women in a household is associated with a lower burden of resource collection work on children and a higher probability of children s school attendance finally the research shows that children from the most environmentally degraded districts of central and southern malawi are less likely to attend school and relatively fewer of them have progressed to secondary school compared to those from districts in the north

cold houses in warm climates and vice versa a paradox of rational heating houses in cold climates are kept warmer in winter than those in warm climates des pite the greater cost of heating in colder climates it is shown that this is not only consistent with but also implied by rationality the contrary intuition is based on a confusion between average and ma rginal cost the same analysis implies that it is rational to keep th e thermostat setting constant throughout the heating season rather th an changing it with changes in external temperature copyright 1987 by university of chicago press

education labor supply and market development in rural peru summary research suggests that education has a limited effect on subsistence farm productivity yet rural incomes include more than farming as households diversify their income portfolios furthermore education may affect the number of labor hours supplied utilizing data from peru this paper finds that farm households benefit from more education by finding more lucrative opportunities characterized by fewer hours the extent to which this is possible depends on how well local markets are developed since education policy takes time to yield returns policy makers have an additional tool at their disposal improving market access will also increase the returns to education

will developing country nutrition improve with income a case study for rural south india aggregate estimates of food expenditure are consistent with such a possibility implying income expenditure elasticities close to one however the high degree of aggregation at which such estimates are made means that the considerable increase in price per nutrient as income increases is ignored and the nutrient elasticities are therefore overstated estimates for a rural south indian sample indicate that this bias is considerable and that the true nutrient elasticities with respect to income may be close to zero

technical coefficients for bio economic farm household models a meta modelling approach with applications for southern mali abstract in recent years different types of bio economic models have been developed to support the analysis of the potential impact of agrarian policies on changes in land use sustainable resource management and farmers welfare most bio economic models rely on series of discrete input output coefficients for current and improved cropping and livestock activities whereas mathematical programming procedures are usually applied to analyse optimum allocative choice adequate procedures for the smooth integration of biophysical information into economic decision models are however not readily available this article provides a new and comprehensive framework for the incorporation of technical input output coefficients derived from agroecological simulation approaches into bio economic farm household models therefore continuous production functions are estimated for the production side of the farm household model making use of meta modelling principles it is shown that meta modelling offers considerable scope for improving the specification and behaviour of bio economic farm household models this procedure is applied in a farm household model developed for the analysis of farmers response to agrarian policies in southern mali results are presented for the behaviour of a typical household focusing attention on the trade offs between farm income and soil nutrient balances under free market conditions and with constraints on labour capital and animal traction markets the stability and robustness of the model is analysed through a simulation of the impact of higher input costs for land use and fertiliser applications

entitled to work urban property rights and labor supply in peru this brief summarizes the results of a gender impact evaluation study entitled entitled to work urban property rights and labor supply in peru new legal rights were issued in 1996 project teams providing titling service through 2003 in peru the study observed that between 1996 and 2003 the peruvian government issued property titles to over 1 2 million urban households the largest titling program targeted at urban squatters in the developing world this paper examines the labor market effects of increases in tenure security resulting from the program pre program squatters in program neighborhoods were significantly more likely to report improved tenure security by 60 percent similarly program participants were 18 8 percentage points less likely to report a high likelihood of eviction or invasion and 18 8 percentage points more likely to report that their dwelling was currently very secure from eviction or invasion the likelihood of working inside the home significantly falls by 11 6 percentage points for the average squatter family with two program periods

liquidity monetary policy and the financial crisis a new monetarist approach a model of public and private liquidity integrates financial intermediation theory with a new monetarist monetary framework nonpassive fiscal policy and costs of operating a currency system imply that an optimal policy deviates from the friedman rule a liquidity trap can exist in equilibrium away from the friedman rule and there exists a permanent nonneutrality of money driven by an illiquidity effect financial frictions can produce a financial crisis phenomenon that can be mitigated by conventional open market operations working in an unconventional manner private asset purchases by the central bank are either irrelevant or they reallocate credit and redistribute income jel e13 e44 e52 e62 g01 liquidity is a class of assets that is useful in exchange some of these liquid assets are government liabilities federal reserve notes treasury bills and treasury notes some are private liabilities the deposit liabilities of banks and some asset backed securities for example conventional wisdom holds that the main role of a central bank is to manage public liquidity in a manner that controls inflation and enhances the provision of private liquidity and credit however the mechanism by which central bank actions work to perform this role still appears to be poorly understood as has been highlighted by the financial crisis and the ensuing policy responses the purpose of this paper is to build a model of public and private liquidity that captures the features of modern economies essential to the analysis of monetary policy and that can be used to shed light on some current monetary policy problems and questions what is a liquid asset and what roles do privately provided and publicly provided liquid assets play in exchange in a model where we capture these roles for liquid assets what are the implications for monetary policy under what circumstances can a liquidity trap occur how does monetary policy work when there is a positive quantity of excess reserves held by banks what does a financial crisis do to the supply of private liquidity and what should monetary policy do in response

price effects of energy efficient technologies a study of residential demand for heating and cooling energy efficient appliances reduce the marginal price of the services they deliver this article shows empirically that such price reductions result in energy savings that are smaller than those engineering techniques generally project using econometric techniques with data from a unique utility experiment and a detailed engineering thermal load model we find that actual conservation is as much as 13 below engineering estimates for cooling and 8 12 below for heating customers who conserve electricity are also persistent their houses are comparatively warmer in summer and cooler in winter

child farm labor the wealth paradox this article is motivated by the remarkable observation that children of land rich households are often more likely to be in work than the children of land poor households the vast majority of working children in developing economies are in agricultural work predominantly on farms operated by their families land is the most important store of wealth in agrarian societies and it is typically distributed very unequally these facts challenge the common presumption that child labor emerges from the poorest households this article suggests that this apparent paradox can be explained by failures of the markets for labor and land credit market failure will tend to weaken the force of this paradox these effects are modeled and estimates obtained using survey data from rural pakistan and ghana the main result is that the wealth paradox persists for girls in both countries whereas for boys it disappears after conditioning on other covariates

meso economic filters along the policy chain understanding the links between policy reforms and rural poverty in latin america abstract the paper clarifies the meso economy concept by defining it as comprising both the market mechanisms and administrative procedures through which policy decisions and market signals trickle down to the household level three main bodies of literature are reviewed the policy oriented literature in which the meso economy was initially considered the transaction cost approach analyzing market and policy failures and the micro economy level of agricultural household models the paper develops a synthesis of macro meso and micro economic perspectives which focuses on the roles played by three levels of filters intervening along the policy chain implications for policy and research are drawn

modeling farm households price responses in the presence of transaction costs and heterogeneity in labor markets we develop a farm household model to analyze price responses of farm households this model incorporates various types of transaction costs as well as labor heterogeneity nonproportional variable transaction costs or labor heterogeneity imply that production and consumption decisions become nonseparable even when the household buys or sells labor an empirical model is estimated using data from midwest poland the results show that nonproportional variable transaction costs and labor heterogeneity significantly influence household behavior not all price elasticities however change significantly if these are neglected

a unified framework for monetary theory and policy analysis search theoretic models of monetary exchange are based on explicit descriptions of the frictions that make money essential however tractable versions of these models typically make strong assumptions that render them ill suited for monetary policy analysis we propose a new framework based on explicit micro foundations within which macro policy can be studied the framework is analytically tractable and easily quantifiable we calibrate the model to standard observations and use it to measure the cost of inflation we find that going from 10 percent to 0 percent inflation is worth between 3 and 5 percent of consumption much higher than previous estimates

quantifying the impact of r d on pv project financing costs abstract energy technology research and development r d typically focuses on advancing the performance and reducing equipment and installation costs however such r d can also have significant indirect impacts on other factors incorporating the impact that r d activities have on financing costs can provide a more complete picture of the consequences of these decisions and may allow policymakers to make better decisions in this paper we discuss some historical examples of r d impacting financing costs in the solar energy sector summarize the areas of r d that can impact financing and describe methodological approaches that can be used to quantify the impact of r d on financing costs and as a result the levelized cost of energy lcoe we estimate that r d driven reductions in financing costs in the solar sector from current levels to low risk levels could reduce lcoe approximately 25 alternatively without the r d advances needed to prevent future risks and complications financing costs in the solar sector could increase by as much as 115

heterogeneity of commercialization gains in the rural economy farmers in low income rural economies often fail to switch to cash crops from staple production despite the positive income effects of commercialization expected by policy makers the literature suggests that market failures prevent households from cash crop adoption but remains inconclusive regarding farmers motives and the effects of commercialization this article contributes to the debate by offering an original approach to the analysis of commercialization outcomes and farmers decisions it consists of applying a model with essential heterogeneity and a semiparametric estimation technique to analyzing harvest value returns to cash cropping using malawian data we show considerable heterogeneity in harvest value returns to cash cropping both within and between groups of farmers choosing different crop portfolios importantly the results imply rational choices based on comparative advantage considerations of farming households farmers self select into the activity where they expect higher gains and adopt cash crops when facing weaker market barriers

poverty alleviation in mozambique a multi market analysis of the role of food aid abstract the use of food aid in poverty alleviation programs has been hampered by two problems the inability to target to households in need and the disincentive effects on agriculture in this paper we present econometric estimates of in almost ideal demand system aids for households in maputo mozambique and develop a multi market model to show that in maputo imported yellow maize is not only self targeting but that owing to a combination of the low cross price elasticity with locally produced staples particularly white maize and cross border trade in food products the disincentive effects on domestic agriculture have been negligible

moving toward markets labor allocation in rural china abstract china s economic reforms have brought rapid growth in rural off farm employment raising questions about the assumption that rural china is labor surplus and has poorly functioning factor markets we investigate this by testing for separability between household labor demand and supply using panel data we find that separability is rejected overall indicating that factor markets remain underdeveloped nonseparability however is associated with labor surplus in some areas and labor shortage in others moreover separability holds where substantial employment opportunities exist in the wider township suggesting that such employment promotes competitive allocation within villages as well as the inter village movement of resources

oil and energy price volatility it is commonly believed that since the 1973 oil crisis oil and energy prices have been more volatile than other commodity prices this study examines monthly producer prices for thousands of products over the period january 1945 through august 2005 the results show that crude oil refined petroleum and natural gas prices are more volatile than prices for about 95 of products sold by domestic producers relative to crude commodities however crude oil prices are currently more volatile than about 65 of other products and oil price volatility first exceeded the median for crude commodities following the 1986 drop in oil prices

consumption and investment in resource pooling family networks this paper examines a novel motive for resource pooling in family networks in rural economies to relax credit constraints and facilitate investment in non collateralizeable assets for which credit market imperfections are most binding we thus complement established literatures examining risk sharing motives for resource transfers within family networks as well as motives based on kinship tax obligations we do so exploiting the progresa program data in which family networks can be identified households are subject to large exogenous resource inflows and detailed responses on consumption and an array of investments can be tracked in a household panel over five years we find that for every dollar that accrues to the family network through progresa transfers food consumption expenditures increase by around 65c for both households eligible for progresa and ineligible members of the same family network hence the marginal propensity of families to invest save out of every dollar is around 35 and we document how this is channelled towards easing credit constraints poorer network members face in financing non collateralizable investments into their children s human capital we show these consumption and investment benefits of being embedded within a family network are sustained five years after households first experience resource transfers from progresa hence the interplay between resource inflows and resource pooling by family networks can place network members on sustained paths out of poverty this article is protected by copyright all rights reserved

re use of collateral in the repo market this paper introduces a methodology to estimate the re use of collateral based on actual transaction data with a comprehensive data set from the swiss franc repo market we are able to provide the first systematic study on the re use of collateral we find that re using collateral was most popular prior to the financial crisis when roughly 10 of the outstanding interbank volume was secured with re used collateral furthermore we show that the re use of collateral increases with the scarcity of collateral by giving an estimate of the collateral re use and explaining its drivers the paper contributes to the on going debate on collateral availability

ahp based risk analysis of energy performance contracting projects in russia abstract understanding and properly managing risks that could potentially affect the target and performance based profits of energy performance contracting epc projects are essential it is particularly important for the establishment and success of energy service companies escos acting in the vulnerable environment of the vast but highly energy inefficient russian market this study systematically explores common risk factors and causes of risk associated with epc projects executed in three russian sectors 1 industrial 2 housing and communal services and 3 public several interviews with the russian epc experts were accomplished and a qualitative risk assessment by using an analytic hierarchy process ahp approach the data were obtained from a web based questionnaire survey conducted among russian epc project executors for each focus sector a specific preference based ranking of the identified risk factors and causes of risk was derived the ahp results show that causes of risk related to the financial and regulatory aspects contribute most to the riskiness of epc projects performed in all three focus sectors in russia calling for the special attention of epc policy and business makers due to sectorial particularities and different actors involved we conclude that there is a need for elaboration of sector specific contractual schemes for epc projects

evaluating energy efficiency investments accounting for risk in the discounting process a prominent feature of the literature regarding the economics of energy conservation is the debate over the existence and nature of the so called efficiency gap a frequent subject of debate is whether consumers apply a reasonable discount rate when evaluating the future benefits of energy efficiency measures a key aspect of the discounting debate is the manner in which consumer attitudes toward risk are accounted for when discounting this paper suggests that an appropriate approach to incorporating risk into the evaluation of energy efficiency projects would yield higher net benefits to such projects than standard evaluation techniques we argue that analysing the purchase of fuel saving capital as though it were a standard investment in a physical asset obscures an important feature of the decision rather than deciding whether or not to invest in an asset with an uncertain future benefit stream the consumer is actually choosing between two future cost streams each of which is uncertain this seemingly minor change in perspective has important implications for how the risk associated with fuel saving capital should be brought into the discounting process an example based on lighting technologies is used to illustrate the principles discussed

the choice of energy saving modes for an energy intensive manufacturer considering non energy benefits in practice energy intensive manufacturers have two main options when improving their energy efficiency design and implement energy efficiency projects on their own we call this self saving or enter into an energy performance contracting epc which mainly includes shared savings and guaranteed savings in this paper we will discuss an energy intensive manufacturer facing self saving and shared savings options and how this manufacturer chooses the optimal energy saving mode when non energy benefits are considered we only consider costs and profit as non energy benefits and formulate an optimization model of self saving and a stackelberg game model of shared savings from our model analysis when considering only energy savings we find that the optimal unit savings has a monotonic impact on the optimal profit of the manufacturer our results indicate that the manufacturer will prefer the second option to the first when the investment cost factor ratio of the energy service company esco to the manufacturer is small otherwise the manufacturer will prefer the first to the second furthermore when considering non energy benefits we find that the results change in some cases

poverty targeting resource degradation and heterogeneous endowments a micro simulation analysis of a less favored ethiopian village persistent and widespread poverty in less favored areas lfas is attributed to fragile natural resources and poor markets limited assets may keep households outside the reach of poverty policies targeted at lfas we explored in a stylized manner the role of heterogeneous household assets for 1 policies aimed at poverty reduction 2 within village income inequality and 3 soil erosion with a farm household micro simulation model we analyzed for each household in a remote ethiopian village three sets of policies technology improvement infrastructure investment and off farm employment through migration or cash for work cfw programs combating poverty with a single policy migratory off farm employment reduces the poverty headcount most because of self selection cfw programs performed best in terms of reaching the poorest of the poor cfw also reduced within village income inequality most while a price band reduction increased income inequality only technology improvements resulted in a trade off between poverty and soil erosion price band and off farm employment policies reduced erosion while outperforming technology improvements in terms of poverty reduction we found that combining two policies was most helpful in assisting poorer households to overcome the limitations of their asset endowments a cfw program combined with reduced price bands yielded most in terms of poverty reduction and income inequality this policy complementarity is however less important for better endowed households reducing the reliance of households on agriculture offered a win win situation of reducing poverty and maintaining natural resources combining policies helped to overcome asset limitations to target policies to the poorest households and to reduce income inequalities

the emergence of trading and risk management in liberalized electricity markets abstract trading and risk management services are essential components of liberalized electricity markets they thrive in markets where prices are volatile and customers need protection from unwanted and poorly understood risks this viewpoint describes the fundamentals and explains what has been driving their phenomenal growth in the recent past in the usa

prospect theory and energy efficiency abstract investments in energy efficiency entail uncertainty and when faced with uncertainty consumers have been shown to behave according to prospect theory preferences are reference dependent and exhibit loss aversion and probabilities are subjectively weighted using data from a choice experiment eliciting prospect theory parameters i provide evidence that loss averse people are less likely to invest in energy efficiency then i consider policy design under prospect theory when there are also externalities from energy use a higher degree of loss aversion implies a higher subsidy to energy efficiency numerical simulations suggest that the impact of prospect theory on policy may be substantial

evolution of the u s energy service company industry market size and project performance from 1990 2008 lbnl xxxx e rnest o rlando l awrence b erkeley n ational l aboratory evolution of the u s energy service company industry market size and project performance from 1990 2008 peter h larsen charles a goldman and andrew satchwell environmental energy technologies division may 2012 pre print of article submitted for publication to energy policy the work described in this report was funded by the u s department of energy s office of energy efficiency and renewable energy weatherization and intergovernmental program and the permitting siting and analysis division of the office of electricity delivery and energy reliability under contract no de ac02 05ch11231

the liquidity coverage ratio and security prices abstract what is the added value of a security which qualifies as a high quality liquid asset hqla under the basel iii liquidity coverage ratio lcr in this paper we quantify the added value in terms of yield changes and as suggested by stein 2013 call it hqla premium to do so we exploit the introduction of the lcr in switzerland as a unique quasi natural experiment and we find evidence for the existence of an hqla premium in the order of 4 basis points guided by theoretical considerations we claim that the hqla premium is state dependent and argue that our estimate is a lower bound measure furthermore we discuss the implications of an economically significant hqla premium thereby we contribute to a better understanding of the lcr and its implications for financial markets

the impacts of hybrid maize seed on the welfare of farming households in kenya this paper explores the impacts of hybrid maize adoption on the welfare of farming households in kenya we use a four year panel dataset to estimate the effects of hybrid seed use on four indicators of household welfare namely income assets inequality and poverty results show that use of hybrid seed not only contributes to higher annual income but also to raising the value of assets possibly reflecting longer term welfare effects further we find that use of hybrid seed reduces the depth of poverty and that the amount planted reduces inequality as expected impacts differ between major and minor maize growing areas of the country maize farmers who do not use hybrid seed are clearly disadvantaged this calls for continued public and private investments in the infrastructure and policy process that supports a competitive liberalized seed industry and improved access of smallholder farmers to well adapted affordable hybrids

market influence on the low carbon energy refurbishment of existing multi residential buildings abstract this paper explores the relationship between the energy market the political and regulatory context and energy design decisions for existing multi residential buildings to determine what form the energy market landscape would take if tailored to encourage low carbon solutions the links between market dynamics government strategies and building designs are mapped to understand the steps that achieve carbon reduction from building operation this is achieved using a model that takes financial and energy components with market and design variables to provide net present cost and annual carbon outputs the financial component applies discounted cash flow analysis over the building lifespan with discount rates reflecting contractual characteristics the carbon component uses standard assessment procedure sap 2005 a scenario approach is adopted to test alternative strategies selected to encourage low carbon solutions in two residential and two office designs the results show that the forward assumption of energy price escalation is the most influential factor on energy investment together with the expected differentiation between the escalation of gas and electricity prices using this and other influencing factors the research reveals trends and strategies that will achieve mainstream application of energy efficiency and microgeneration technologies and reduce carbon emissions in the existing multi residential sector

demand for maize hybrids and hybrid change on smallholder farms in kenya kenya is a globally recognized maize success story as the overall percentage of maize farmers growing hybrids tops 80 and the seed industry matures the slow pace of hybrid replacement on farms and the continued dominance of the seed industry by kenya seed company may dampen productivity our econometric analysis identifies the factors that explain farmer demand for hybrid seed and the age of hybrids they grow considering hybrid seed ownership male headed households with more education more assets and more land plant more hybrid seed scale of seed demand per farm is differentiated by agroecology we find a strong farmer response to the seed to grain price ratio which we interpret as evidence of a commercial orientation even on household farms however despite the dramatic increase in the number of hybrids sold and the breadth of seed suppliers as seed markets liberalize an older hybrid still dominates national demand

explaining the energy efficiency gap expected utility theory versus cumulative prospect theory abstract energy efficiency is one of the key factors in mitigating the impact of climate change and preserving non renewable resources although environmental and economic justifications for energy efficiency investments are compelling there is a gap between the observable and some notion of optimized energy consumption the so called energy efficiency gap behavioral biases in individual decision making have been resonated by environmental research to explain this gap to analyze the influence of behavioral biases on decisions upon energy efficiency investments quantitatively we compare expected utility theory with cumulative prospect theory on basis of a real world example we illustrate how the extent of the gap is influenced by behavioral biases such as loss aversion probability weighting and framing our findings indicate that cumulative prospect theory offers possible explanations for many barriers discussed in literature for example the size of the gap rises with increased risk and investment costs because behavioral biases are systematic and pervasive our insights constitute a valuable quantitative basis for environmental policy measures such as customer focused and quantitatively backed public awareness campaigns financial incentives or energy savings insurances in this vein this paper may contribute to an accelerated adaption of energy efficiency measures by the broader public

collateral values by asset class evidence from primary securities dealers using data on repurchase agreements by primary securities dealers we show that three classes of securities treasury securities securities issued by government sponsored agencies and mortgage backed securities can be formally ranked in terms of their collateral values in the general collateral gc market we then show that gc repurchase agreement repo spreads across asset classes display jumps and significant temporal variation especially at times of predictable liquidity needs consistent with the safe haven properties of treasury securities these jumps are driven almost entirely by the behavior of the gc repo rates of treasury securities estimating the collateral rents earned by owners of these securities we find such rents to be sizable for treasury securities and nearly zero for agency and mortgage backed securities finally we link collateral values to asset prices in a simple no arbitrage framework and show that variations in collateral values explain a significant fraction of changes in short term yield spreads but not those of longer term spreads our results point to securities role as collateral as a promising direction of research to improve understanding of the pricing of money market securities and their spreads jel g12 g23