declining values and the afternoon effect evidence from art auctions we study the order of sale in art auctions the final bid relative to the auctioneer s estimated price declines throughout the course of an auction a theoretical model shows that in an auction ordered by declining valuation even in the presence of risk neutral strategic bidders the price received relative to the estimate for later items in an auction should be less than the price relative to the estimate for earlier items furthermore ordering heterogeneous items by value maximizes revenue for the auctioneer

bidding behavior at sequential first price auctions with out supply uncertainty a laboratory analysis abstract we report on a series of experiments that test the effects of an uncertain supply on bidding behavior and prices in sequential first price auctions with private independent values and unit demands supply is assumed uncertain when buyers do not know the exact number of units to be sold i e the length of the sequence we observe an important overbidding in all but the last stage of a sequence no matter whether supply is certain and a non monotone behavior when supply is certain yet the data qualitatively support most stage to stage bid predictions and the price trend predictions for risk neutral bidders

candidate reputations and the incumbency effect abstract a major shortcoming of the classical median voter model is that its central prediction convergence of platforms to the median voter s ideal is seldom observed one reason is that the classical model neglects the importance of voter expectations as a determinant of votes here we associate voters expectations about candidates with past as well as current candidate pronouncements and assume that incumbents whose actions are consistent with their reputations are perceived as less risky than challengers in equilibrium candidates choose distinct platforms typically neither adopts the median voter s ideal point either candidate may win depending on how well the incumbent s reputation reflects current voter tastes and how relatively risky the electorate perceives the challenger to be

testing for price anomalies in real estate auctions this paper reports on the results of an auction sale of 83 condominium apartment units in new jersey at the auction every unit was hammered down but unknown to the 2 348 registered bidders 40 of the sales fell through prices in the subsequent sale of condominium units in face to face negotiations resulted in identical units selling for 13 less than they fetched at auction and the discount was largest for those units hammered down early in the auction these results are inconsistent with the usual predictions from the theory of common value auctions and suggest that uninformed bidders in this auction may have been the subject of a winner s curse which generated considerable profit for the seller this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from ano this abstract was borrowed from another version of this item

agents ability to manage information in centralized markets comparing two wholesale fish markets abstract in this paper we perform an empirical investigation to detect if and how agents behavior changes with the amount of available information they have to this aim we use data from two wholesale fish markets of different thicknesses we tackle the issue by investigating features such as the dynamics of the structure of attendance in auctions the varieties of fish presentations during the seller s turn and the presence of long term relationships between buyers and sellers we perform the investigation in this way instead of focusing on the dispersion and dynamics of prices to prevent unobserved quality differences of the traded fish varieties from biasing the results of the analysis the results of our investigation are consistent with a situation in which the magnitude of phenomena like buyers loyalty to sellers and agents following rules of thumb increases with the market thickness

women s schooling home teaching and economic growth the hypothesis that increases in the schooling of women enhance the human capital of the next generation and thus make a unique contribution to economic growth is assessed on the basis of data describing green revolution india estimates are obtained that indicate that a component of the significant and positive relationship between maternal literacy and child schooling in the indian setting reflects the productivity effect of home teaching and that the existence of this effect combined with the increase in returns to schooling for men importantly underlies the expansion of female literary following the onset of the green revolution

marriage markets labor markets and unobserved human capital an empirical exploration for south central india some aspects of the linkage between dimensions of unobserved human capital that are rewarded in the marriage market and in the wage market are explored it is postulated that in rural south central india the schooling age and dowry of a mans wife are determined by the mans observed characteristics schooling caste and those of his parents parental wealth parental occupation and dimensions of his unobserved by the researcher human capital the theoretical model consisted of two sets of equations the first describing the determination of the wifes characteristics through the marriage market and the second the determination of the mans wage and wage growth and his participation in the wage market the data were part of the village level studies vls conducted in rural semiarid south india a total of 120 households from 3 villages were surveyed continuously over the period 1975 76 to 1984 85 detailed information was obtained on farm management income consumption time allocation and asset ownership the mans schooling had a significant effect on his wifes schooling and on her age the characteristics of the mans parental household had a significant effect on each of the 3 observed characteristics of his wife the year of marriage significantly increased the wifes schooling by 0 08 year per year the net dowry 1 2 per year and the wifes age at marriage by 0 24 years per year schooling had a significant impact on a mans participation in the wage market and on wage growth a mans unobserved human capital generally had a significant and positive effect on his wage rate and wage growth though a negative effect on participation in the wage market some important dimensions of human capital beyond schooling had important effects in both marriage and labor markets potential brides and parents presumably value such characteristics because they increase the expected earning power of potential husbands

evolving market structure an ace model of price dispersion and loyalty we present an agent based computational economics ace model of the wholesale sh market in marseille two of the stylized facts of that market are high loyalty of buyers to sellers and persistent price dispersion although it is every day the same population of sellers and buyers that meets in the same market hall in our ace model sellers decide on quantities to supply prices to ask and how to treat loyal customers while buyers decide which sellers to visit and which prices to accept learning takes place through reinforcement the model explains both stylized facts price dispersion and high loyalty in a coevolutionary process buyers learn to become loyal as sellers learn to o er higher utility to loyal buyers while these sellers in turn learn to o er higher utility to loyal buyers as they happen to realize higher gross revenues from loyal buyers the model also explains the e ect of heterogeneity of the buyers we analyze how this leads to subtle di erences in the shopping patterns of the di erent types of buyers and how this is

school supply constraints and children s educational outcomes in rural ghana abstract studies of school attainment often fail to acknowledge the possibility that prices for all schooling levels affect the decision to attend any one schooling level in developing countries the assumption that schooling costs are constant throughout the education cycle is manifestly untrue this paper concentrates on the empirical implications of introducing schooling costs that increase with schooling level the results suggest that the cost of advanced levels of education influences decisions at the primary school level the relative magnitude of the cross price elasticities suggests that cross price effects should not be ignored when designing educational user fees

optimal tax treatment of the family married couples abstract this paper examines the appropriate tax treatment of the family in a series of analytical models and numerical examples for a population of taxpaying couples which differ in earning capacity we drive the optimal tax rates for each potential earner these rates depend crucially upon own and cross labor supply elasticities and the joint distribution of wage rates our results suggest that the current system of income splitting in the united states under which husbands and wives face equal marginal tax rates is nonoptimal using results from recent econometric studies and allowing for a sensitivity analysis the optimal tax rates on secondary workers in the family are much lower than those on primary earners indeed our best estimate is that the secondary earner would face tax rates only one half as high as primary earners

market organisation and trading relationships in this paper we give a theoretical model of buyers behaviour on a market for a perishable good where no prices are posted we show that if buyers learn from their own previous experience there is a sharp division between those who learn to be loyal to certain sellers and those who continue to shop around this feature remains in more general models which are simulated and is consistent with empirical data from the marseille fish market

the declining price anomaly abstract data from wine auctions indicate that identical products sold sequentially typically follow a decreasing pattern of prices known as the declining price anomaly this is explained for both first and second price auctions by appealing to risk averse bidders earlier bids are then equal to expected later prices plus a risk premium associated with the risky future price we show that this logic rests on the assumption of nondecreasing absolute risk aversion which is necessary for pure strategy equilibrium bidding functions to exist thus decreasing absolute risk aversion implies ex post inefficiency with positive probability data from wine auctions are used to confirm the existence of the declining price anomaly journal of economic literature classification numbers d43 d44 d81 d82 l81

the intergenerational transmission of maternal human capital and the gender gap in educational attainment abstract an intergenerational effect of maternal and not paternal human capital on offspring s human capital production is a mechanism that induces males and females to attain different education levels this mechanism allows for explanations of the reversal in the gender education gap

schooling search and spouse selection testing economic theories of marriage and household behavior the implications of the economic theories of marriage and of household fertility behavior are tested in a framework in which educational investment marital search and marital matches are responsive to marriage market conditions and the personal traits of individual agents some of which are unobserved by the econometrician implications are also derived and tested for the effects of longevity attractiveness preferences and labor and marriage market conditions on schooling marriage age and spouse choice the empirical results indicate that inattention to heterogeneity and martial selection leads to a false rejection of the economic theory of marriage but to a false acceptance of the value of time fertility hypothesis

male female differences in agricultural productivity methodological issues and empirical evidence abstract most estimates of male female differences in technical efficiency from production function studies show that male and female farmers are equally efficient farm managers controlling for levels of inputs and human capital there is some evidence however of allocative inefficiency within households marginal products of labor depend on the relative scarcities of labor and the gender division of labor in specific farming systems many of these studies however are methodologically flawed greater attention needs to be given to appropriate estimation methods endogenous input choice the use of headship as a stratifying variable and the implications of intrahousehold resource allocation

how auctions work for wine and art interview auctioneers and even to buy a little wine in the meantime i have also had the opportunity with john abowd 1988 to observe and collect data on the auction sale of impressionist and contemporary paintings this paper reports on some of the empirical regularities that i and others have observed in the actual operation of the auction markets for these items in view of the rich and diverse array of theoretical literature on auctions it seems high time economists began to spell out precisely what facts it is meant to explain 2

borrowing constraints and progress through school evidence from peru this paper investigates the effect of borrowing constraints on the timing of human capital investment in a developing country by looking at how quickly children with different family backgrounds progress through the primary school system in peru the main findings are that children start withdrawing from school earlier as indicated by repetition of grades in households with lower income and durable good holdings and when children are more closely spaced behavior also differs as predicted between children from households that appear to be borrowing constrained and those that appear unconstrained copyright 1994 by mit press

learning by doing and learning from others human capital and technical change in agriculture household level panel data from a nationally representative sample of rural indian households describing the adoption and profitability of high yielding seed varieties hyvs associated with the green revolution are used to test the implications of a model incorporating learning by doing and learning spillovers the estimates indicate that i imperfect knowledge about the management of the new seeds was a significant barrier to adoption ii this barrier diminished as farmer experience with the new technologies increased iii own experience and neighbors experience with hyvs significantly increased hyv profitability and iv farmers do not fully incorporate the village returns to learning in making adoption decisions

low skilled immigration and parenting investments of college educated mothers in the united states evidence from time use data this paper uses several decades of u s time diary surveys to assess the impact of low skilled immigration through lower prices for commercial childcare on parental time investments using an instrumental variables approach that accounts for the endogenous location of immigrants we find that low skilled immigration to the united states has contributed to substantial reductions in the time allocated to basic childcare by college educated mothers of nonschool aged children however these mothers have not reduced the time allocated to more stimulating educational and recreational activities with their children understanding the factors driving parental time investments on children is crucial from a child development perspective

pricing and regulating affect environmental ethics effluent charges and tradeable permits are economically efficient but rarely used a new explanation for this discrepancy is offered pricing may crowd out environmental ethics in the pricing and via spillovers also in non pricing sectors pricing may therefore increase pollution providing a reason why decision makers tend to reject environmental pricing five propositions showing the conditions for counterproductive effects are advanced they are consistent with available empirical evidence regulation by setting standards and subsidies damage environmental ethics less than pricing because pollution is condoned damaging environmental ethics may prevent political action in favor of the environment

the effect of the value of time on food consumption patterns in developing countries evidence from sri lanka this study shows that the opportunity cost of women s time can affect household food consumption patterns in developing countries demand equations for rice bread and the ratio of bread to total cereal consumption are estimated for urban sri lankan households the demand specification which is based on the new household economics includes as explanatory variables the woman s estimated market wage and the household s full income and alternatively observed income wages are estimated using the heckman procedure to correct for sample selection bias

does more schooling make women better nourished and healthier adult sibling random and fixed effects estimates for nicaragua there is debate on whether schooling causes increases in productivity or whether the estimated relationships reflect ability knowledge tastes etc that are associated with schooling this paper examines the impact of women s schooling on women s health and nutrition with and without controls for unobserved childhood background factors related to ability and motivation random and fixed effects models are estimated using data on adult sisters both sets of estimates reinforce the relationships found in standard estimates that women s schooling positively affects their health and nutrient intakes the latter result is particularly robust

are there increasing returns to the intergenerational production of human capital information on ability and achievement test scores of sibling children many of whom had mothers who continued their schooling between births is used to test the hypothesis that maternal schooling augments the production of children s human capital that there are increasing returns to human capital estimates from models that take into account heterogeneity in maternal endowments could not reject this hypothesis and suggest benefits to postponed childbearing in particular they suggest that postponement of the initiation of childbearing by two years among women who are tenth graders would result in a 5 percent increase in their children s achievement test scores

economic prescriptions for environmental problems how the patient followed the doctor s orders o ne of the dangers with ivory tower theorizing is that it is easy to lose sight of the actual set of problems which need to be solved and the range of potential solutions as one who frequently engages in this exercise i can attest to this fact in my view this loss of sight has become increasingly evident in the theoretical structure underlying environmental economics which often emphasizes elegance at the expense of realism in this paper i will argue that both normative and positive theorizing could greatly benefit from a careful examination of the results of recent innovative approaches to environmental management the particular set of policies examined here involves two tools which have received widespread support from the economics community marketable permits and emission charges pigou 1932 dales 1968 kneese and schultze 1975 both tools represent ways to induce businesses to search for lower cost methods of achieving environmental standards they stand in stark contrast to the predominant command and control approach in which a regulator specifies the technology a firm must use to comply with regulations under highly restrictive conditions it can be shown that both of the economic approaches share the desirable feature that any gains in environmental quality will be obtained at the lowest possible cost baumol and oates 1975 until the 1960s these tools only existed on blackboards and in academic journals as products of the fertile imaginations of academics however some countries have recently begun to explore using these tools as part of a broader strategy for managing environmental problems

random errors dirty information and politics rational voters assessments of candidates and policy proposals are unbiased but affected by random errors clean information decreases these errors while dirty information increases them in politics most voting procedures weigh random individual errors asymmetrically thus such errors do not counterbalance one another in the aggregate they systematically affect politics this illuminates the roles of political propaganda and interest groups it helps to explain various puzzles in public choice e g the frequent use of inefficient policy instruments institutional conditions are identified that shape the aggregate impact of individual errors and the politicians incentives to produce dirty information

taxation and the household abstract previous analyses of demand systems and the welfare effects of taxing male and female labour supplies suppress the analysis of household resource allocation by assuming a household utility function to analyse the implications of assuming this is not the case we construct a simple but fairly general model of household resource allocation and use the properties of the equilibrium of this model to characterise the effects of tax policy on individual utilities as determined by the household resource allocation process

the politics of ambiguity politicians face a trade off between the policies that maximize their chances of reelection and their most preferred policies or the policies most preferred by the constituency which they represent this paper analyzes this trade off in a dynamic electoral model in which the voters are not fully informed about the preferences of the incumbent first we show that the incumbent follows a policy which is intermediate between the other party s ideal policy and his own ideal policy second we show that often the incumbent has an incentive to choose procedures which make it difficult for voters to pinpoint his preferences with absolute precision thus politicians may prefer to be ambiguous

auctions and the price of art the value of most important works of art is established by public auction either directly by an actual sale or indirectly by reference to other sales how the auction system works is thus a critical determinant of how the public s preferences are translated into the evaluation of artistic work the auction system is central in the determination of the incentives for artistic work and the efficiency of the auction system is a key determinant of the cost of creating and distributing works of art this paper contains a review of the burgeoning new research of the last decade that has been designed to shed light on how the art auction system actually works what it indicates about price formation and how well it performs we begin our discussion in section 2 with a short description of the mechanics of the auction system and then organize the remainder of our discussion around two major topics the first topic concerns how auction prices can be used to determine and compare overall price movements within the art market and other markets and the second topic concerns how the auction mechanism influences prices we

the use and effect of political propaganda in democracies this paper examines the influence of political propaganda on voters and analyses the behavior of the interest groups in the face of the influence being exercised by propaganda semi truths are distributed among the electorate the decision taken by a voter results from his basic opinion and from the parts of information he receives the analysis shows that the greater the likelihood of a certain decision being reached by a fully informed electorate the more probable it is that the same decision will be reached by a rationally uninformed electorate the pecuniary interest of an interest group is however also positively correlated with the probability that the electorate reaches a decision which is agreeable to that interest group it has finally become appar ent that the results of the approach concur well with empirical studies

household food security and child nutrition the interaction of income and gender of household head abstract data from kenya and malawi suggest that food security and preschooler nutritional status are influenced by the interaction of income and gender of the head of household rather than simply one or the other not only is household food security influenced by total household income but the proportion of income controlled by women has a positive and significant influence on household caloric intake households were disaggregated not simply in male and female headed households but female headed households were further disaggregated into de jure legal head of household is a woman and de facto female headed households male head of household is absent more than 50 of the time in both kenya and malawi the de facto female headed households had the lowest income despite this low income preschoolers nutritional status was significantly better than in the higher income male headed and de jure female headed households the ability to improve nutritional status in a low income environment in the de facto female headed households is related to a combination of child feeding practices and other nurturing behavior the findings suggest that interventions that exploit incentives to invest in children can provide more immediate improvements in child health and nutrition where sustained income growth is possible only in the long term

information and economic analysis a perspective ten years ago i delivered a paper before this group with the title information and economic analysis i chose the title deliberately i did not call the subject on which i was speaking the economics of information because to do so would have been to suggest that my topic like the economics of agriculture or the economics of industry or the economics of labour represented another branch of specialisation within economics i wanted to suggest that informational considerations were in fact central to the analysis of a wide variety of phenomena that they constituted a central part of the foundations of economic analysis at the time though economists had long paid lip service to the importance of information there was little formal literature the last decade has seen a burgeoning of the literature it has become to the late 7o s and early 8o s what growth theory was to the early 6o s and it has been greeted with some of the same scepticism there seems to be a myriad ofspecial cases and few general principles the little examples are often contrasted unfavourably with the generality of general equilibrium theory what have we learned have diminishing returns set in are there fruitful directions for future research and if so what are they these are the questions which i wish to address here the work of the past decade has made i think a fundamental and lasting contribution to economic analysis the contributions have been both negative and positive we have learned that much of what we believed before is of only limited validity that the traditional competitive equilibrium analysis though having the superficial appearance of generality in terms of superscripts and subscripts is indeed not very general the theory is not robust to slight alterations in the informational assumptions it is but a special and not very plausible example among the possible set of informational assumptions which can be employed to characterise an economy at the same time the theory has been able to provide insights into phenomena about which the traditional model had nothing to say or which seemed inconsistent or inexplicable within the competitive paradigm it has provided some of the micro foundations for macro economics it has provided the basis of a new theory of the firm of a new new welfare economics and of a theory of economic organisation including a comparison of economic

systematically biased beliefs about economics robust evidence of judgemental anomalies from the survey of americans and economists on the economy differences between the general public s positive economic views and economists resemble other judgemental anomalies laypeople and experts systematically disagree i analyse this puzzle using data from the survey of americans and economists on the economy the paper first tests and decisively rejects the hypothesis that the differences solely reflect economists self serving bias then it examines whether economists political ideology and party loyalties explain the disagreement if anything this slightly increases their magnitude the effect of economic training clearly falls but remains large after adding education to the set of control variables apparent biases robustness suggests that the anomaly is real

learning to bid in sequential dutch auctions abstract we propose an agent based computational model to investigate sequential dutch auctions with particular emphasis on markets for perishable goods and we take as an example wholesale fish markets buyers in these markets sell the fish they purchase on a retail market the paper provides an original model of boundedly rational behavior for wholesale buyers behavior incorporating learning to improve profits conjectures as to the bids that will be made and fictitious learning we analyze the dynamics of the aggregate price under different market conditions in order to explain the emergence of market price patterns such as the well known declining price paradox and the empirically observed fact that the very last transactions in the day may be at a higher price the proposed behavioral model provides alternative explanations for market price dynamics to those which depend on standard hypotheses such as diminishing marginal profits furthermore agents learn the option value of having the possibility of bidding in later rounds when confronted with random buyers such as occasional participants or new entrants they learn to bid in the optimal way without being conscious of the strategies of the other buyers when faced with other buyers who are also learning their behavior still displays some of the characteristics learned in the simpler case even though the problem is not analytically tractable

literacy sharing assortative mating or what labour market advantages and proximate illiteracy revisited abstract this paper explores the relationship between household literacy and the labour market outcomes of illiterate household members which basu narayan and ravallion 2002 report using household income and expenditure data from bangladesh bnr attribute a considerable wage premium for proximate illiterate women in off farm employment to labour productivity gains from intra household literacy sharing this wage premium also suggests that women may be more efficient recipients of literacy externalities than men we propose that any such relationship might not be due to higher labour productivity but may have other explanations such as systematically different and unobserved attributes of illiterate females married into literate households we also pay attention to the negative selection of illiterate females into non farm wage employment which contrary to received wisdom suggests that household literacy may not be unambiguously progressive for females we propose that the widely reported finding that

marital status and fertility in the united states welfare and labor market effects the incidence of marriage and the proportion of childbearing that occurs within marriage have decreased sharply in the united states in the last several decades this paper examines whether the probability that a woman is currently married and the number of children she has borne as reported in the 1980 u s census are related to two identifiable factors the variation in welfare programs across states specifically afdc and medicaid benefits and afdc up expenditures or the variation in the market wage opportunities available to women and to their potential husbands afdc and medicaid benefit levels are associated with fewer women being currently married medicaid benefits are related to lower fertility levels for both black and white women whereas afdc benefits in cash and food are associated with lower fertility among white women ages 15 24 those states that extend afdc benefits to families with unemployed parents in other words fathers in intact poor families do not have significantly more women married or higher fertility rates contrary to what might be expected from economic incentives men s market wages are associated with more frequent marriage and higher fertility whereas higher market wage opportunities for women have substantial effects in the opposite direction all of which are consistent with standard models of gender specialization and the demand for marriage and fertility

rational moralists the role of fairness in democratic economic politics in this paper we empirically test for the influence of fairness considerations on the willingness to redistribute income in private and in democratic decisions in contrast to standard explanations of income redistribution our theory takes into account that prices shift decisively as we move from the sphere of private contributions to politics at the polls it is nearly costless to observe social norms therefore we expect individuals to behave more fairly in the political sphere than in the market place we present experimental evidence which is consistent with this hypothesis in distributive struggles social norms moderate the inclination of human beings to behave like gangsters

do wages rise with job seniority many previous studies have found a strong positive effect of job seniority tenure on wages this paper re examines the evidence using a simple instrumental variables scheme to deal with the fact that tenure is likely to be related to unobserved individual and job characteristics that affect the wage we use the variation of tenure over a given job match as the principal instrumental variable for tenure the variation in tenure over the job is uncorrelated by construction with the fixed individual and job match specific components of the error term of the wage equation our main finding is that the partial effect of tenure on wages is small and that general labour market experience and job shopping account for most wage growth over a career the strong cross section relationship between tenure and wages is due primarily to heterogeneity bias prior researchers see mincer and jovanovic 1981 bartel and borjas 1981 borjas 1981 cline 1979 and mellow 1981 and many others have established that job seniority has a strong positive relationship with wage rates in a cross section or a cross section time series of individuals in this paper we re evaluate the evidence concerning the partial effects on wages of job seniority tenure and total labour market experience the extent to which wages rise with tenure is important for several reasons first and foremost the wage tenure profile is a fundamental question about the structure of earnings over careers second the wage tenure profile is a key determinant of the extent to which the earnings power of individuals is tied to specific jobs and it is important for assessment of the losses suffered by displaced workers hamermesh 1984 third evidence that wages rise with job tenure has been used to explain the decline in quits with tenure since the wage growth on the current job lowers the probability that the worker will locate a superior alternative a growing theoretical literature surveyed in parsons 1984 has taken the evidence of a strong wage tenure profile at face value and sought to provide an explanation for the relationship the most prominent explanation is the theory of specific human capital oi 1962 becker 1962 mincer 1974 parsons 1972 kuratani 1973 and hashimoto 1980 in which the growth of wages with tenure holding experience constant is attributed to the worker s share of investments in firm specific skills more recently lazear 1981 has presented a supervision model of wage growth in which firms defer compensation as a means of inducing workers not to shirk freeman 1977 and harris and holmstrom 1982 provide an explanation for wage growth based on an insurance motive salop and salop 1976 nickell 1976 and guasch and weiss 1982 present adverse selection models of wage growth in which firms use a wage tenure profile as a

health nutrition and economic development the relationship between health and economic development is explored focusing on nutrition based health indicators the spotlight is placed on the inter related feedbacks between the influence of health on productivity on one hand and the influence of income on health status on the other disentangling causality in these relationships has preoccupied much of the literature we evaluate different empirical strategies that have been adopted and assess the results there is now a body of evidence based on careful empirical studies that demonstrates a causal relationship between health and labor productivity there is also evidence that at least among the very poor additional income is spent on improved nutrition there are two issues that have received little attention although we argue they are likely to be very important first measurement of health is discussed in detail evidence is presented on how taking into account differences in the extent of measurement error is critical for interpreting the impact of health on wages the same theme emerges in studies of the effect of income on health specifically calorie intake the key role of non linearities in these relationships is highlighted and we demonstrate that a good deal of the variation in estimates of income elasticities of demand for calories can be ascribed to the role of measurement and functional form authors

interest groups campaign contributions and probabilistic voting this essay develops a simple model to analyze the impact of campaign contributions on electoral policy decisions of candidates for office interest groups here are firms that select contributions under the assumption that candidates policies and opposing groups donations remain unaltered candidates however recognize that their policy choices affect contributions campaign contributions are used by candidates to affect policy oriented voters perceptions of candidates positions in this framework the introduction of campaign contributions may affect candidates electoral policies and if they do then they benefit surely exactly one of the two interest groups

an economic analysis of delayed primary school enrollment in a low income country the role of early childhood nutrition this paper investigates why children in low income countries often delay primary school enrollment despite the prediction of human capital theory that schooling will begin at the earliest possible age we explore several explanations for delayed enrollment but focus on the hypothesis that delays are rational responses to early childhood malnutrition we test these alternative hypotheses using recent data from ghana our estimates which address a number of previously ignored econometric issues firmly support the hypothesis that early childhood malnutrition causes delayed enrollment we find little or no support for alternative explanations based on borrowing constraints and the rationing of places in school copyright 1995 by mit press

does better nutrition raise farm productivity household level data from sierra leone are used to test whether higher caloric intake enhances family farm labor productivity this is the notion behind the efficiency wages hypothesis which has found only weak empirical support a farm production function is estimated accounting for the simultaneity in input and calorie choice instruments include prices household demographic characteristics and farm assets the latter two sets of instruments are later dropped to explore the robustness of the results to different specifications of exogeneity the exercise shows a highly significant effect of caloric intake on labor productivity providing solid support for the nutrition productivity hypothesis the marginal effect on productivity falls drastically as calorie consumption rises but remains positive at moderately high levels of intake one result is a fall in the effective price of food a decline that is larger for households that consumer fewer calories

socioeconomic and demographic aspects of school enrollment and attendance in rural botswana as has been true for other african and non african mineral rich economies the most serious constraint on botswana s development to date has been the lack of human capital schapera notes that in traditional botswana schooling was conceived as a burden on the family because of both the new expenditures associated with schooling and the loss of the child s contribution to household production and income ashton notes that parents in botswana apparently failed to perceive the benefits of education 2 the situation has changed fundamentally since schapera and ashton wrote in the forties largely through government policy programs of school construction and teacher training schools have become relatively widespread the benefits of schooling are apparent in the labor market and are even more immediately evident at home schools often provide free meals and health care to their pupils however the schooling system may not be designed to serve sparsely populated areas completely this reflects in part the movement and social spread of botswana s rural population across villages lands and cattle posts moreover children especially in households with assets play a role in the household economy 3 as a consequence the indirect costs of schooling those noted by shapera may still be substantial in botswana today these costs in addition to the direct costs of transportation and uniforms may be prohibitive to the schooling of many children the evidence i present later shows that even primary schooling was not universal in botswana at the time of the 1974 rural income distribution survey on which this present study is based 4 this paper is to study the demographic and socioeconomic corre

transactions that did not happen and their influence on prices abstract this paper studies data from the wholesale fruit and vegetables market in marseille we have details of counteroffers to the prices that were proposed by the seller even when no transaction took place we analyse the evolution of prices and the relation between the final price struck and the proposals of the two parties periods with no buyer refusals of offers or bargaining with no transaction will lead to a revision of the seller s first price more importantly the sharing of the surplus moves in the buyer s favour during the day these theoretical predictions are confirmed by our data set

why governments should invest more to educate girls abstract women and men often receive the same percentage increase in their wage rates with advances in schooling because these returns decline with more schooling the marginal returns for women will tend to exceed those for men especially in countries where women are much less educated the health and schooling of children are more closely related to their mother s education than father s more educated women work more hours in the market labor force broadening the tax base and thereby potentially reducing tax distortions these three conditions it is argued justify the disproportionate allocation of public expenditures toward women s education

intra household resource allocation an inferential approach if household income is pooled and then allocated to maximize welfare then income under the control of mothers and fathers should have the same impact on demand with survey data on family health and nutrition in brazil the equality of parental income effects is rejected unearned income in the hands of a mother has a bigger effect on her family s health than income under the control of a father for child survival probabilities the effect is almost twenty times bigger the common preference or neoclassical model of the household is rejected if unearned income is measured with error and income is pooled then the ratio of maternal to paternal income effects should be the same equality of the ratios cannot be rejected there is also evidence for gender preference mothers prefer to devote resources to improving the nutritional status of their daughters fathers to sons

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

how much does sorting increase inequality some commentators argue that increased sorting into internally homogeneous neighborhoods schools and marriages is radically polarizing society calibration of a formal model however suggests that the steady state standard deviation of education would increase only 1 7 percent if the correlation between neighbors education doubled and would fall only 1 6 percent if educational sorting by neighborhood disappeared the steady state standard deviation of education would grow 1 percent if the correlation between spouses education increased from 0 6 to 0 8 in fact marital and neighborhood sorting have been stable or even decreasing historically sorting has somewhat more significant effects on intergenerational mobility than on inequality

catching up with the economy in his presidential address five years ago zvi griliches 1994 called attention to the severe difficulties that beset current attempts to measure the growth of labor productivity in the american economy because of these difficulties it is likely that the true rate of economic growth is substantially underestimated the root of the problem is the difficulty in measuring output in the service sector which now represents two thirds of the economy in such sectors as health care and information services the contribution to gross domestic product gdp is measured by inputs rather than outputs a procedure that makes it impossible to gauge accurately improvements in the quality of output thus in the case of computers which are transforming american society economists have been unable so far to find a measurable contribution of computers to the rise in labor productivity an astonishing paradox i want to follow up on this problem of mismeasurements my thesis is that the profession

a theory of competition among pressure groups for political influence this paper presents a theory of competition among pressure groups for political influence political equilibrium depends on the efficiency of each group in producing pressure the effect of additional pressure on their influence the number of persons in different groups and the deadweight cost of taxes and subsidies an increase in deadweight costs discourages pressure by subsidized groups and encourages pressure by taxpayers this analysis unifies the view that governments correct market failures with the view that they favor the politically powerful both are produced by the competition for political favors

what s that got to do with the price of fish buyers behavior on the ancona fish market abstract in this paper we analyze the ancona wholesale fish market meritan where transactions take place in three simultaneous dutch auctions our objective is to characterize the behavior of market participants and in particular that of buyers in such a market structure our analysis shows that buyer seller relationships are less important than in a pairwise bargaining market such as the marseille fish market but that a significant amount of loyalty is still present under the auction mechanism we provide an explanation of the declining price paradox for the fish market of ancona by linking the rule used by the buyers to set their bid to the relationship between the variation in the price of the last transactions in the day and the quantity of fish available on that day in fact the average price tends to increase for the last transactions on days characterized by a limited supply of fish

design of discrete dutch auctions with consideration of time abstract as a departure from much of the existing literature that aims at maximizing the expected revenue from a single auction this research work is concerned with the design of discrete dutch auctions to achieve the optimal balance between the selling price of the object and the auction duration so that the auctioneer s expected revenue per unit of time is as high as possible the new objective is especially important in trading perishable products or services when multiple auctions are to be conducted by the auctioneer for different sellers during a limited period of time our findings indicate that the proposed discrete dutch auction models generate higher average revenues per unit of time for the auctioneer than their counterparts without consideration of time this is achieved by reducing the duration of each auction in exchange for more auctions to be held within the given time frame so that the small decrease in the revenues from the longer auctions is more than compensated for by the large increase in the total revenues from the shorter auctions the numerical results show that the proposed discrete dutch auction design becomes extremely useful when the number of bidders becomes large it is also shown that complete knowledge about the number of bidders in the auction results in a higher auctioneer s expected revenue per unit of time

independent and competing agencies an effective way to control government controlling government is a primary focus of the politico economic literature recently various political institutions have been analyzed from this perspective most importantly balanced budget rules fiscal federalism and direct democracy however one type of institution has been neglected so far elected competitors to the government such institutional competition between the government and an independent agency can be found at the swiss local level where finance commissions compete with the government in some parts of switzerland local finance commissions can ex ante criticize government projects and bring alternative policy proposals onto the political agenda which are then voted on by the citizens thus they become strong competitors to the government we econometrically investigate this institutional setting by comparing the 26 swiss cantons we find the power of the local finance commission to have an economically relevant statistically significant and robust negative effect on the tax burden and on public expenditures

market opportunities genetic endowments and intrafamily resource distribution child survival in rural india the authors examine how intrafamily resource allocations respond to changes in economic conditions and to genetic differences in children by estimating the determinants of variations in the sex specific survival differentials of rural indian children based on standard census and household survey data they explore in particular the hypothesis that such differences are related to the relative returns to survival with households selectively allocating resources to children in response to variation in sex differences in their expected earnings opportunities as adults data are from the 1961 census and a 1971 household survey excerpt

the declining price anomaly in dutch dutch rose auctions in symmetric independent private value auctions of a single object with risk neutral bidders the english second price auction has strategic simplicity it is optimal for bidders to reveal their valuation of the object and make bids accordingly in that case the auction is won by the person with the highest valuation who pays a price equal to the second highest valuation in a dutch first price auction this simplicity vanishes here winning bidders have to pay their bid to make a profit they shade their bids and bid below their valuation of the object somewhat loosely one may state that an english auction is truth revealing whereas a dutch auction requires strategic behavior the simple structure of the one unit english auction vanishes if two identical objects are auctioned sequentially now in the first round it is optimal for bidders to shade their bids to account for the option value of participating in the subsequent second round robert j weber 1983 bidders with a higher valuation also have a higher option value therefore they shade their bids in the first round by a greater amount than do bidders with a lower valuation as the auction proceeds the number of bidders decreases over the sequence of auctions the number of objects decreases as well the first fact has a negative effect on the competition for an object and the second has a positive effect both effects cancel out and prices follow a martingale as a result all gains to waiting are arbitraged away and the expected prices in both rounds are the same the latter result also holds for sequential auctions of more than two objects and does not depend on whether the auction is english or dutch this neat theoretical result is not supported by empirical research which usually finds price declines orley ashenfelter 1989 found a mild price decrease in sequential auctions of identical units of wine mcafee and daniel vincent 1993 also present empirical evidence on sequential wine auctions they found that on average the second unit of wine was sold at a price 1 4 percent lower than the price of the first unit victor ginsburgh 1998 uses data from wine auctions in which the auctioneer acted as an agent for bidders who were not present at the auction he found price declines but apparently the absent bidders entered bids that did not fit with the theory empirical studies by ashenfelter and david genesove 1992 see also jean jacques laffont 1997 and alan beggs and kathryn graddy 1997 concern heterogeneous objects they also detected price declines because of the contradiction between theory and empirical studies the declining price phenomenon is regarded to be an anomaly

more evidence on nutrition demand income seems overrated and women s schooling underemphasized abstract malnutrition is widespread in the developing world controversy continues concerning the roles of income household size and women s schooling on nutrient demand empirical estimates for nicaragua suggest that income elasticities are small and inversely associated with income levels there are some economies of scale in household size the elasticity for women s schooling is higher than those for income or household size and women s backgrounds are important the results cast doubt on the strong emphasis the world bank and others have placed on income and suggest that schooling may be working through tastes not only through productivity