bulls bears and market sheep abstract a deterministic excess demand model of stock market behavior is presented that generates stochastically fluctuating prices and randomly switching bear and bull markets

the effectiveness of keynes tobin transaction taxes when heterogeneous agents can trade in different markets a behavioral finance approach abstract we develop a model in which boundedly rational agents apply technical and fundamental analysis to identify trading signals in two different speculative markets whether an agent trades and if so in which market with which strategy depends on profit considerations as it turns out an ongoing evolutionary competition between the trading strategies causes complex price dynamics which closely resembles the behavior of actual speculative prices moreover we find that if the agents have to pay a transaction tax in one market price variability decreases in this market but increases in the other market however the imposition of a uniform tax on all transactions stabilizes both markets our results suggest that if regulators of a market introduce a transaction tax other markets are likely to follow

measuring the forest and income impacts of forest user group participation under malawi s forest co management program abstract we evaluate the impacts of forest user group participation under malawi s forest co management program on forest clearing and household income we use panel data collected in 2002 and 2009 in two districts of malawi we employ a two step regression strategy to control for endogenous selection into the program using propensity score weighting and propensity score analysis with non parametric regression we find that the program lowered the rate and extent of forest clearing we also find that the program had no discernible impact on household forest incomes suggesting that the program helped achieve environmental goals without compromising household livelihoods

popular acceptance of inequality due to innate brute luck and support for classical benefit based taxation abstract u s survey respondents views on distributive justice differ in two specific related ways from what is conventionally assumed in modern optimal tax research when expressing their preferences over allocations in stylized hypothetical scenarios meant to isolate key features of the tax problem a large share of respondents resist the full equalization of unequal outcomes due to innate brute luck that standard analyses recommend a similar share prefer a classical benefit based logic for taxes over the conventional logic of diminishing marginal social welfare moreover these two views are linked respondents who more strongly resist equalization are more likely to prefer the classical benefit based principle though the amazon mechanical turk survey population is not a representative sample of the u s population robustness of these results across demographic traits and political views suggests that a large share of the american public holds views inconsistent with standard welfarist objectives

group loyalty and the taste for redistribution interpersonal preferences preferences that depend on the characteristics of others are typically hard to infer from observable individual behavior as an alternative approach this paper uses survey data to investigate interpersonal preferences i show that self reported attitudes toward welfare spending are determined not only by financial self interest but also by interpersonal preferences these interpersonal preferences are characterized by a negative exposure effect individuals decrease their support for welfare as the welfare recipiency rate in their community rises and racial group loyalty individuals increase their support for welfare spending as the share of local recipients from their own racial group rises these findings help to explain why levels of welfare benefits are relatively low in racially heterogeneous states

positive and normative judgments implicit in u s tax policy and the costs of unequal growth and recessions calculating the welfare implications of changes to economic policy or shocks requires economists to decide on a normative criterion one approach is to elicit the relevant moral criteria from real world policy choices converting a normative decision into a positive inference as in the recent surge of inverse optimum research we find that capitalizing on the potential of this approach is not as straightforward as we might hope we perform the inverse optimum inference on u s tax policy from 1979 through 2010 and argue that the results either undermine the normative relevance of the approach or challenge conventional assumptions upon which economists routinely rely when performing welfare evaluations

a dynamic structural model for stock return volatility and trading volume an examination is made of an adaptive beliefs model that is able to roughly reproduce the following features seen in the data 1 the autocorrelation functions of the volatility of returns and trading volume are positive with slowly decaying tails 2 the cross correlation function of volatility is approximately zero for squared returns with past and future volumes and is positive for squared returns with current volumes 3 abrupt changes in prices and returns occur that are hard to attach to news the last feature is obtained because the law of large numbers can fail in the large economy limit

commodity markets price limiters and speculative price dynamics abstract we develop a behavioral commodity market model with consumers producers and heterogeneous speculators to characterize the nature of commodity price fluctuations and to explore the effectiveness of price stabilization schemes within our model we analyze how nonlinear interactions between market participants can create either bull or bear markets or irregular price fluctuations between bull and bear markets through a global homoclinic bifurcation both the imposition of a bottoming price level to support producers or a topping price level to protect consumers can eliminate such homoclinic bifurcations and hence reduce market price volatility however simple policy rules such as price limiters may have unexpected consequences in a complex environment a minimum price level decreases the average price while a maximum price limit increases the average price in addition price limiters influence the price dynamics in an intricate way and may cause volatility clustering

biased perceptions of income distribution and preferences for redistribution evidence from a survey experiment abstract individual perceptions of income distribution play a vital role in political economy and public finance models yet there is little evidence regarding their origins or accuracy this study examines how individuals form these perceptions and explores their potential impact on preferences for redistribution a tailored household survey provides original evidence on systematic biases in individuals evaluations of their own relative position in the income distribution the study discusses one of the mechanisms that may generate such biases based on the extrapolation of information from endogenous reference groups and presents some suggestive evidence that this mechanism has significant explanatory power the impact of these biased perceptions on attitudes toward redistributive policies is studied by means of an experimental design that was incorporated into the survey which provided consistent information on the own ranking within the income distribution to a randomly selected group of respondents the evidence suggests that those who had overestimated their relative position and thought that they were relatively richer than they were tend to demand higher levels of redistribution when informed of their true ranking

impacts of access and benefit sharing on livelihoods and forest case of participatory forest management in ethiopia the introduction of participatory forest management pfm may involve the exclusion of previous forest users from accessing forest resources this is the case for pfm in the two ethiopian pioneer sites dodola and chilimo that represent two distinct pfm approaches in ethiopia this paper analyses how pfm after controlling pre pfm differences affects members of forest user groups fugs and non members total annual incomes forest incomes expenditures and livestock asset holdings income and asset data were collected from 635 randomly selected households data were analysed using propensity score matching models results show that in dodola where commercial timber harvest is allowed the introduction of pfm means that fugs have higher livestock assets and forest income than non members the average total income and the expenditure for members and nonmembers however were not significantly different in chilimo site the result is the opposite the introduction of pfm means that fug members have lower total incomes and assets than non members based on our findings we recommend that the pfm scaling up approaches in ethiopia which currently allow fugs only subsistence use from forest resources need to be revised

financial crises and regime dependent dynamics abstract generalized with the regime dependent beliefs and regime switching dynamics the simple market maker framework established by day and huang 1990 is capable to model all types of crises that is sudden crisis disturbing crisis and smooth crisis and to offer economic and dynamic justifications on how and why these crises appear moreover the model simulations verify the salient qualitative and statistical properties commonly observed in the real financial data such as fat tails volatility clustering long range dependence leverage effect and other stylized facts additionally the model replicates the various chart patterns widely applied in the technical analysis

comparing the profitability of organic and conventional production in family farming empirical evidence from brazil abstract several studies have compared the profitability of organic and conventional producers but present very conflicting results although in the majority of these papers selection bias due to observables is accounted for the possibility of selection based on unobservables has been largely overlooked in this paper we compare these two types of producers using a large and unique data of about 4 2 million family farmers in brazil standard propensity score matching techniques are used together with the procedure recently developed by oster forthcoming to address concerns about omitted variables our results confirm the working hypothesis that organic producer s profits are lower than conventional ones

how elastic are preferences for redistribution evidence from randomized survey experiments we analyze randomized online survey experiments providing interactive customized information on us income inequality the link between top income tax rates and economic growth and the estate tax the treatment has large effects on views about inequality but only slightly moves tax and transfer policy preferences an exception is the estate tax informing respondents of the small share of decedents who pay it doubles support for it the small effects for all other policies can be partially explained by respondents low trust in government and a disconnect between concerns about social issues and the public policies meant to address them jel d31 d72 h23 h24

income inequality in the united states 1913 1998 this paper presents new homogeneous series on top shares of income and wages from 1913 to 1998 in the united states using individual tax returns data top income and wages shares display a u shaped pattern over the century our series suggest that the large shocks that capital owners experienced during the great depression and world war ii have had a permanent effect on top capital incomes we argue that steep progressive income and estate taxation may have prevented large fortunes from fully recovering from these shocks top wage shares were flat before world war ii dropped precipitously during the war and did not start to recover before the late 1960s but are now higher than before world war ii as a result the working rich have replaced the rentiers at the top of the income distribution

social mobility and redistributive politics just like economists voters have conflicting views about redistributive taxation because they estimate its incentive costs differently we model rational agents as trying to learn from their dynastic income mobility experience the relative importance of effort and predetermined factors in the generation of income inequality and therefore the magnitude of these incentive costs in the long run left wing dynasties believing less in individual effort and voting for more redistribution coexist with right wing dynasties this allows us to explain why individual mobility experience and not only current income matters for political attiitudes and how persistent differences in perceptions about social mobility can generate persistent differences in redistribution across countries

do americans want to tax wealth evidence from online surveys abstract a vast theoretical literature in public finance has studied the desirability of capital taxation this discussion largely ignores the political feasibility of taxing wealth we provide to our knowledge the first investigation of individuals preferences over jointly taxing income and wealth we provide subjects with a set of hypothetical individuals incomes and wealth and elicit subjects preferred absolute tax bill for each individual our method allows us to unobtrusively map both income earned and accumulated wealth into desired tax levels our regression results yield roughly linear desired tax rates on income of about 14 respondents suggested tax rates indicate positive desired wealth taxation when we distinguish between sources of wealth we find that in line with recent theoretical arguments subjects implied tax rate on wealth is 3 when the source of wealth is inheritance far higher than the 0 8 rate when wealth is from savings textual analysis of respondents justifications for their tax rates imply limited concern for the elasticity of tax bases with respect to net of tax rates

individual preferences for political redistribution what drives people s support of governmental reduction of income inequality we employ data from a large international survey in order to evaluate the explanatory power of three competing forces referred to as the homo oeconomicus effect the public values effect and the social rivalry effect the empirical analysis reveals that at the aggregate level all three effects play a significant role in shaping individual preferences for political redistribution attitudes of citizens in formerly socialist countries turn out to differ from those of western citizens in a systematic way 2002 elsevier science b v all rights reserved

explaining mass support for agricultural protectionism evidence from a survey experiment during the global recession why are citizens in advanced industrialized countries willing to accept high prices for agricultural products conventional wisdom suggests that agricul tural interests secure government protection because producers are concentrated and better politically organized than diffused consumers due to its focus on pro ducer capacity for collective action however the literature fails to account for the high levels of mass support for agricultural protectionism in advanced industrial ized nations this article presents new evidence from a survey experiment in japan conducted during the recent global recession december 2008 that accounts for this puzzle using randomly assigned visual stimuli the experiment activates respon dents identification with either producer or consumer interests and proceeds to ask attitudinal questions regarding food imports the results suggest that consumer priming has no reductive or additive effects on the respondents support for liberal izing food imports surprisingly producer priming increases respondents opposi tion to food import particularly among those who fear future job insecurity we further disentangle the puzzling finding that consumers think like producers on the issue of food import along two mechanisms sympathy for farmers and projec tion of their own job insecurity the results lend strong support to the projection hypothesis

price barriers in the dow jones industrial average this study tests the popular claim that the djia s movements around key reference points affect investor sentiment and thus price behavior it is found that the djia s rise and fall is indeed restrained by support and resistance levels at multiples of 100 e g 2800 2900 3000 etc but that having broken through a 100 level the djia then moves by more than otherwise warranted a monte carlo study and comparisons with other indices confirm the significance of these findings this suggests that some agents may trade on the basis of the djia but does not necessarily suggest that the market is inefficient

agricultural change rural labor markets and forest clearing an illustrative case from the philippines this paper studies the links between agricultural employment and upland activities at a tropical forest margin a model of lowland agricultural production is combined with a model of labor allocation on a representative upland farm to show how labor productivity agricultural wages and the returns from upland activities determine rates of forest clearing farm level data from the philippines demonstrate how agricultural intensification in the form of lowland irrigation development led to an increase in labor demand an increase in employment of upland inhabitants and small but statistically signi ficant reductions in rates of forest clearing

economic shocks diversification and forest use in uganda we investigate household outcomes arising from economic shocks in rural uganda focusing on patterns of income diversification and forest use and the role of assets in shaping ex post response to shocks income poor households and those with below average landholdings are observed to have more diversified income portfolios than their cohorts households encountering above average losses tend to have more diversified income portfolios subsequent to the losses larger negative shocks are associated with greater use of the forest in subsequent periods especially among asset poor households findings suggest that development of better safety nets would reduce both vulnerability and forest pressure

social limits to redistribution in many countries equality of political rights including the right to vote over taxes and transfers goes along with substantial inequality of economic conditions this observation lies at the root of one fundamental issue in political economy one about the factors that limit the extent of redistribution in democracies the conventional economic wisdom on this issue can roughly be summarized by two arguments firstly redistributive taxation may be limited by various kinds of incentive costs of taxation as e g in james a mirrlees 1971 kevin w s roberts 1977 dennis n epple and thomas romer 1991 and thomas piketty 1995 secondly redistribution may be dampened by the lobbying activity of high income groups and by various imperfections inherent to the political process that determines the tax system as e g in gary s becker 1983 and john e roemer 1995 while both arguments offer illuminating insights into the phenomenon of redistribution they are also based on a very crude description of human behavior one which ignores social motivations of action both in the economic and the political sphere the present paper develops an explanation that takes such motivations into account specifically it shows that limits to redistribution may arise when economic inequality has an informational value for social decisions our approach is based upon the following observation many goods and decisions that heavily affect an individual s quality of life are not allocated or made through markets but through social interactions thomas scitovsky 1976 for instance although people have strong preferences over how they are treated by others and over whom they mate with these things are not the object of market transactions a number of sources of satisfaction like conversation dinners and parties playing with others and being observed and admired are nonmarket goods for which a keen social competition between individuals often develops as shown by harold cole et al 1992 the existence of social rather than market competition for some goods can endogenously generate a concern for relative position in the income distribution when information about relative income is private individuals become interested in the observable consumption differentials between them and their social competitors since consumption differentials are influenced by redistributive taxation the political attitudes of people toward redistribution will be shaped by its expected impact on social competition in some identifiable environments this concern for social success may be the crucial factor that limits the extent of redistribution desired by a majority of voters specifically while the middle class may obtain economic benefits from a large amount of redistributive taxation it may oppose an equalization of living standards since this would harm its social success the fear of losing social status in favor of the poor induces the middle class to enter a political alliance with the rich which supports conservative taxation programs in the sociological literature scholars of voting behavior have often suggested that the need for social recognition plays a crucial role in shaping political attitudes seymour m lipset 1967 pointed out that white collar workers tend to be socially valued similarly as those higher in the system and although their income may be only slightly larger than that of manual workers white collars are much more likely to corneo department of economics university of osnabruck rolandstrasse 8 d 49069 osnabruck germany cesifo munich and cepr london gruner department of economics university of mannheim d 68131 mannheim germany iza bonn and cepr london we would like to thank emmanuelle auriol dieter bos peter funk mike hout olivier jeanne peter jonas georg noldeke thomas piketty regis renault john roemer jens weidmann and three anonymous referees for insightful comments and suggestions we have also benefited from the comments of participants at workshops and conferences in barcelona bonn davis jena maastricht magdeburg mannheim montreal munich rotterdam silvaplana tel aviv tilburg toulouse and warwick at which we presented earlier versions of this work financial support from the deutsche forschungsgemeinschaft sfb 303 at the university of bonn is gratefully acknowledged

heterogeneous speculators endogenous fluctuations and interacting markets a model of stock prices and exchange rates abstract we develop a discrete time model in which the stock markets of two countries are linked via and with the foreign exchange market the foreign exchange market is characterized by nonlinear interactions between technical and fundamental traders such interactions may generate complex dynamics and recurrent switching between bull and bear market phases via a well known pitchfork and period doubling bifurcation path when technical traders become more aggressive the two stock markets are populated by fundamentalists and prices tend to evolve towards stable steady states driven by linear laws of motion a connection between such markets is established by allowing investors to trade abroad and the resulting three dimensional dynamical system is analyzed one goal of our paper is to explore potential spill over effects between foreign exchange and stock markets a second related goal is to study how the bifurcation sequence which characterizes the market with heterogeneous speculators is modified in the presence of interactions with other markets

wealth risk and activity choice cattle in western tanzania abstract imperfect credit markets force households to use their savings for investment profitable activities often require lumpy investments limiting entry by poorer households resulting in increasing welfare differences in tanzania cattle are a profitable but lumpy investment and a liquid asset for consumption smoothing richer households own substantial cattle herds while poorer households specialize in low return low risk activities a dynamic programming model and simulations are presented to analyze entry into asset accumulation under income risk the evidence suggests that households with lower endowments are less likely to own cattle and returns to their endowments are lower

explaining social policy preferences evidence from the great recession to what extent do personal circumstances as compared to ideological dispositions drive voters preferences on welfare policy addressing this question is difficult because a person s ideological position can be an outcome of material interest rather than an independent source of preferences the article deals with this empirical challenge using an original panel study carried out over four years tracking the labor market experiences and the political attitudes of a national sample of americans before and after the eruption of the financial crisis the analysis shows that the personal experience of economic hardship particularly the loss of a job had a major effect on increasing support for welfare spending this effect was appreciably larger among republicans than among democrats a result that was not simply due to a ceiling effect however the large attitudinal shift was short lived dissipating as individuals employment situations improved the results indicate that the personal experience of an economic shock has a sizable yet overall transient effect on voters social policy preferences

social mobility and the demand for redistribution the poum hypothesis this paper examines the often stated idea that the poor do not support high levels of redistribution because of the hope that they or their offspring may make it up the income ladder this prospect of upward mobility poum hypothesis is shown to be fully compatible with rational expectations and fundamentally linked to concavity in the mobility process a steady state majority could even be simultaneously poorer than average in terms of current income and richer than average in terms of expected future incomes a e rst empirical assessment suggests on the other hand that in recent u s data the poum effect is probably dominated by the demand for social insurance in the future everyone will be world famous for e fteen minutes andy warhol 1968

can income programs reduce tropical forest pressure income shocks and forest use in malawi summary seasonal household data from malawi are used to study links between income shocks and forest use a tobit model is estimated to examine whether household forest use responds to receipt of a positive income shock delivered as a technology assistance package and the characteristics of households reliant on forests for shock coping results show households experiencing an income boost had lower forest extraction compared to households that did not receive such a shock ceteris paribus we find households most dependent on forests for natural insurance are those located near woodlands and headed by an individual who is relatively young and male 2005 published by elsevier ltd

do the poor benefit from devolution policies evidence from malawi s forest co management program do local people especially vulnerable households benefit from devolution of forest management the authors apply the propensity score matching and decomposition techniques on household data from chimaliro and liwonde forest reserves under the pilot forest co management program in malawi after controlling for selection bias they find that while the program raises forest income for participants in chimaliro it reduces revenue for participants in liwonde interestingly results indicate that the program raises forest income for female and low income participants although male and richer participants capture more benefits due to discrimination and endowment differences accounting for 100 and 60 of the inter group income disparity respectively

speculative behavior and the dynamics of interacting stock markets abstract we develop a simple agent based financial market model in which heterogeneous speculators apply technical and fundamental analysis to trade in two different stock markets speculators strategy market selections are repeated at each time step and depend on predisposition effects herding behavior and market circumstances simulations reveal that our model is able to explain a number of nontrivial statistical properties of and between international stock markets including bubbles and crashes fat tailed return distributions volatility clustering persistent trading volume coevolving stock prices and cross correlated volatilities against this background our model may be deemed to have been validated

financial crises and interacting heterogeneous agents in this paper we examine various types of financial crises and conjecture their underlying mechanisms using a deterministic heterogeneous agent model ham in a market maker framework forward looking investors update their price expectations according to psychological trading windows and cluster themselves strategically to optimize their expected profits the switches between trading strategies lead to price dynamics in market that subsequently move price up and down and in the extreme case cause financial crises the model suggests that both fundamentalists and chartists could potentially contribute to the financial crises

modeling regional linkage of financial markets abstract with the development of globalization and regional economic integration regional markets linked with a common currency emerge in which investors from domestic market are allowed to trade in foreign markets empirical studies have evidenced extensively the existence of co movement of asset prices or cross correlation in market returns among these markets especially in global event however there is no theoretical model in literature that can provide economically plausible justifications for these stylized facts this research intends to fill up such a gap with a simplest possible nonlinear dynamic model based on the classical market maker framework of day and huang 1990 a two market ham model is developed which does not only prove in theory the existence of price co movement but also replicate in simulation this typical characteristic along with other well known stylized facts characterizing individual financial market moreover theoretical analysis suggests meaningful implications for market opening policy in particular in terms of financial stability a relatively small market may not benefit from market linkage and market opening is essentially a double edged sword

the promise of positive optimal taxation normative diversity and a role for equal sacrifice abstract a prominent assumption in modern optimal tax research is that the objective of taxation is utilitarian i present new survey evidence that most people reject this assumption s implications for several prominent features of tax policy instead preferring tax policies based at least in part on a classic alternative objective the principle of equal sacrifice i generalize the standard model to accommodate this preference for a mixed objective proposing a method by which to make disparate criteria commensurable while respecting pareto efficiency then i show that optimal policy in this generalized model calibrated to the survey evidence and u s microdata is capable of quantitatively matching several features of existing tax policy that are incompatible in the conventional model but widely endorsed in the survey and reality including the coexistence of substantial redistribution and limited tagging together these findings demonstrate the potential of a positive theory of optimal taxation

forest dependence and participation in cpr management empirical evidence from forest co management in malawi abstract we develop an endogenous sample selection model to investigate how forest dependence influences a household s decision to participate in forest co management program using data from chimaliro and liwonde forest reserves in malawi we find that where forests primarily have a gap filling or safety net role in chimaliro high forest dependency induces higher rates of participation however with more commercial forest uses and a more heterogeneous social context as in liwonde high forest dependency reduces the incentives for participation the findings point to the need to design parallel interventions alongside the forest co management program in order to provide supplementary income sources to participants and increase the incentives for participation

insiders outsiders and the role of local enforcement in forest management an example from tanzania in low income countries both nearby local villagers insiders and non locals outsiders extract products from protected forests even though their actions are illegal forest managers typically combine enforcement and livelihood projects offered to nearby communities to reduce this illegal activity but with limited budgets cannot deter all extraction we develop a game theoretic model of a forest manager s decision interacting with the extraction decisions of insiders and outsiders our analysis suggests that depending on the relative ecological damage caused by each group budget constrained forest managers may reduce total forest degradation by legalizing insider extraction in return for local villagers involvement in enforcement activities against outsiders

poverty and the political economy of public education spending evidence from brazil a large body of literature has emphasized the elite capture of democratic institutions as the explanation for the low levels of spending on public education in many low income democracies this paper provides an alternative to that longstanding hypothesis motivated by new cross country facts and evidence from brazilian municipalities we hypothesize that many democratic developing countries might invest less in public education spending because poor decisive voters prefer the government to allocate resources elsewhere one possible explanation is that low income voters could instead favor redistributive programs that increase their incomes in the short run such as cash transfers to test for this possibility we design and implement an experimental survey and an incentivized choice experiment in brazil the findings from both interventions support our hypothesis

does it pay to participate in decision making survey evidence on land co management in jiangsu province china member participation in decision making is a critical part of resource co management however little is known about the welfare consequences of participation this paper analyzes the impact of cooperative member participation in decision making on their incomes using data from 364 members of china s land cooperative program we distinguish two levels of participation in decision making voting and obtaining financial information and use a bivariate probit model and propensity score matching to estimate their impact the results indicate that household head s age gender and education and family size wealth and political affiliation determine participation in decision making participation in either voting or obtaining financial information has a positive impact on cooperative members land income there is also a strong joint effect of voting and obtaining information with an increase in land income of 16 we conclude that broad participation can ensure more equitable access to land income for members

preferences for redistribution in the land of opportunities this paper explores how individual preferences for redistribution depend on future income prospects in addition to estimating the impact of individuals socioeconomic background and of their subjective perceptions of future mobility we employ panel data to construct dobjectivet measures of expected gains and losses from redistribution for different categories of individuals we find that such measures have considerable explanatory power and perform better than dgeneral mobilityt indexes we also find that preferences for redistribution respond to individual beliefs on what determines one s position in the social ladder ceteris paribus people who believe that the american society offers equal opportunities are more averse to redistribution d 2004 published by elsevier b v

from extreme to mainstream the erosion of social norms social norms usually persistent can change quickly when new public information arrives such as a surprising election outcome people may become more inclined to express views or take actions previously perceived as stigmatized and may judge others less negatively for doing so we examine this possibility using two experiments we first show via revealed preference experiments that donald trump s rise in popularity and eventual victory increased individuals willingness to publicly express xenophobic views we then show that individuals are sanctioned less negatively if they publicly expressed a xenophobic view in an environment where that view is more popular

the price dynamics of common trading strategies a deterministic trading strategy can be regarded as a signal processing element that uses external information and past prices as inputs and incorporates them into future prices this paper uses a market maker based method of price formation to study the price dynamics induced by several commonly used financial trading strategies showing how they amplify noise induce structure in prices and cause phenomena such as excess and clustered volatility

forests livelihoods and conservation broadening the empirical base summary more than 10 000 years after the agricultural revolution started millions of rural smallholders across the developing world may still derive as much income from foraging forests and wildlands as from cultivating crops these steady environmental income flows come often from public forests and are extracted by men and women alike however inflexible supplies from nature the physical hardship of harvesting and commonly low returns limit their role as safety nets and pathways out of poverty while their harvesting does not preclude the ongoing conversion of wildlands to agriculture privileged access to high quality environmental resources can become a strong local conservation motive

social preferences self interest and the demand for redistribution preferences for redistribution may be influenced by values and beliefs about distributive justice as well as by self interest people may prefer more redistribution to the poor if they believe that poverty is caused by circumstances beyond individual control therefore beliefs about the causes of income may affect demand for redistribution alternatively the effect of these beliefs on redistributive preferences may be spurious if they are correlated with income and self interest is not properly controlled for they may also measure incentive cost concerns using social survey data i find that self interest cannot explain the effect of these beliefs on redistributive preferences 2001 elsevier science b v all rights reserved

wealth inequality in the united states since 1913 evidence from capitalized income tax data this paper combines income tax returns with flow of funds data to estimate the distribution of household wealth in the united states since 1913 we estimate wealth by capitalizing the incomes reported by individual taxpayers accounting for assets that do not generate taxable income we successfully test our capitalization method in three micro datasets where we can observe both income and wealth the survey of consumer finance linked estate and income tax returns and foundations tax records wealth concentration has followed a u shaped evolution over the last 100 years it was high in the beginning of the twentieth century fell from 1929 to 1978 and has continuously increased since then the rise of wealth inequality is almost entirely due to the rise of the top 0 1 wealth share from 7 in 1979 to 22 in 2012 a level almost as high as in 1929 the bottom 90 wealth share rst increased up to the mid 1980s and then steadily declined the increase in wealth concentration is due to the surge of top incomes combined with an increase in saving rate inequality top wealth holders are younger today than in the 1960s and earn a higher fraction of total labor income in the economy we explain how our ndings can be reconciled with survey of consumer finances and estate tax data

baltic dry index and iron ore spot market dynamics and interactions baltic dry index bdi is often included in the iron ore spot price iron ore market experienced a transition in pricing mechanism from the annual negotiated price to the one based on spot market p

your loss is my gain a recruitment experiment with framed incentives empirically labor contracts that financially penalize failure induce higher effort provision than economically identical contracts presented as paying a bonus for success an effect attributed to loss aversion this is puzzling as penalties are infrequently used in practice the most obvious explanation is selection loss averse agents are unwilling to accept such contracts i formalize this intuition then run an experiment to test it surprisingly i find that workers were 25 percent more likely to accept penalty contracts with no evidence of adverse or advantageous selection consistent with the existing literature penalty contracts also increased performance on the job by 0 2 standard deviations i outline extensions to the basic theory that are consistent with the main results but argue that more research is needed on the long term effects of penalty contracts if we want to understand why firms seem unwilling to use them

economic experts versus average americans abstract we compare answers to policy questions by economic experts and a representative sample of the us population we find a 35 percentage point difference between the two groups this gap is on

empirical regularities in the poverty environment relationship of rural households evidence from zimbabwe abstract analysis of rural households and environmental resources is beset by inadequate data especially in africa using purpose collected panel data from zimbabwe we demonstrate seven empirical regularities in the rural poverty environment relationship most important environmental resources make a significant contribution to average rural incomes poorer households also depend heavily on these resources which contribute c 40 to their incomes richer households however use greater quantities of environmental resources in total finally considerable differentiation exists in the economic characteristics of environmental goods these results demonstrate the considerable economic significance of environmental resources to rural households surveys which ignore them miscalculate rural incomes and welfare

generalized social marginal welfare weights for optimal tax theory this paper proposes to evaluate tax reforms by aggregating money metric losses and gains of different individuals using generalized social marginal welfare weights optimum tax formulas take the same form as standard welfarist tax formulas by simply substitut ing standard marginal social welfare weights with those generalized weights weights directly capture society s concerns for fairness without being necessarily tied to individual utilities suitable weights can help reconcile discrepancies between the welfarist approach and actual tax practice as well as unify in an operational way the most prominent alternatives to utilitarianism such as libertarianism equality of opportunity or poverty alleviation jel d60 d63 h21 h23 i38