household choices and child development the growth in labor market participation among women with young children has raised concerns about the potential negative impact of the mother s absence from home on child outcomes recent data show that mother s time spent with children has declined in the last decade while the indicators of children s cognitive and noncognitive outcomes have worsened the objective of our research is to estimate a model of the cognitive development process of children nested within an otherwise standard model of household life cycle behavior the model generates endogenous dynamic interrelationships between the child quality and employment processes in the household which are found to be consistent with patterns observed in the data the estimated model is used to explore the eects of schooling subsidies and employment restrictions on household welfare and child development

estimates of the returns to quality and coauthorship in economic academia salaries of academic economists are studied to determine if individuals receive differential returns to publishing articles of varying quality and to coauthored versus single authored articles estimates based on detailed data and a flexible nonlinear least squares procedure indicate that substantial returns to quality exist and that an individual s return from a coauthored paper with n authors is approximately 1 n times that of a single authored paper

formulating research policy on expert advice abstract national research assessments represent the principal policy used by countries with public university systems to improve the quality of their universities research they typically employ expert panels of local academics to assess journal quality and use such assessments to reward publications we propose a model of how experts assess quality and test this model using data from the recent australian assessment controlling for objective quality we show that experts cognitive biases dominate their assessments consequently such assessments exaggerate the quality of the experts research and understate that of their colleagues our model can explain 95 of the variation in assessments

cultural conflict and merger failure an experimental approach we use laboratory experiments to explore merger failure due to conflicting organizational cultures we introduce a laboratory paradigm for studying organizational culture that captures several key elements of the phenomenon in our experiments we allow subjects in firms to develop a culture and then merge two firms as expected performance decreases following the merging of two laboratory firms in addition subjects overestimate the performance of the merged firm and attribute the decrease in performance to members of the other firm rather than to situational difficulties created by conflicting culture

aging and productivity among economists economists productivity over their careers and as measured by publication in leading journals declines very sharply with age there is no difference by age in the probability that an article submitted to a leading journal will be accepted rates of declining productivity are no greater among the very top publishers than among others and the probability of acceptance is increasingly related to the author s quality rather than the author s age

collective labor supply and household production this paper emphasises the importance of incorporating household production into the collective model of the household and considers how and to what extent the results of chiappori 1992 can be extended to this case this abstract was borrowed from another version of this item

child care prices and maternal employment a meta analysis the literature estimates for labor force participation elasticity with regard to child care prices are extensive and varying while some estimates imply substantial gains from child care subsidies others find insignificant effects to determine the causes of the variance this paper reviews and analyzes the elasticity sizes using estimates from 36 peer reviewed articles and working papers in the literature we start by reviewing the theoretical and empirical aspects related to participation elasticity with regard to child care costs paying special attention to sample characteristics methodological aspects and macro level factors we conclude by providing a meta regression using control variables based on our review of the literature to explain some of the differences between the estimates as research builds on and improves the methods and assumptions in prior works elasticity estimates have become smaller over time this decline might also be partially explained by changes in labor market characteristics in countries with high rates of part time work and very high or very low rates of female labor force participation we find elasticity rates to be smaller

patterns of research productivity in the business ethics literature insights from analyses of bibliometric distributions in any academic discipline published articles in respective journals represent production units of scientific knowledge and bibliometric distributions reflect the patterns in such outputs across authors or producers closely following the analysis approach used for similar studies in the economics and finance literature we present the first study to examine whether there exists an empirical regularity in the bibliometric patterns of research productivity in the business ethics literature our results present strong evidence that there indeed exists a distinct empirical regularity it is the so called generalized lotka s law of scientific productivity pattern the number of authors publishing n papers is about 1 n c of those publishing one paper we discuss the likely processes that underlie the productivity pattern postulated by the generalized lotka s law we find that the value of the exponent c is equal to about 2 6 for the comprehensive bibliometric data across the two leading business ethics journals the observed research productivity pattern in the business ethics area a relatively young discipline is interestingly very consistent with those found in much older related business disciplines like economics accounting and finance we discuss the general implications of our findings

labor supply responses and welfare effects of tax reforms during the late 1 980s and early 1 990s taxation of wage income has undergone a change towards a proportional tax regime in many countries our analysis shows that gradual tax reforms in norway may have removed some of the distortions on worker behavior moreover we find that proportional taxes may reduce the inequality in the distribution of disposable household income yet when the distributional consequences are related to changes in individual welfare we find that rich households may benefit far more than households at the other tail of the income distribution because they earn more without any significant increase in effort

money and economic activity inventories and business cycles abstract incomplete information is a necessary condition for any real effects produced by monetary impulses an alternative to the local global inference problem is explored in this paper agents are confronted with permanent and transitory shocks even with full knowledge about the stochastic structure their best perception at any particular time will usually be erroneous prices for each period are set at the beginning of the period on the basis of market conditions the realization of the shock process thus creates a short run disequilibrium absorbed by inventory adjustments this adjustment translates perceived transitory monetary shocks into serially correlated output movements the analysis proceeds within the context of rational expectations it offers a generalization of equilibrium analysis in two respects prices are always in equilibrium relative to perceived conditions but they do not reflect all ongoing shocks quantity adjustments reflect the perceived transitory shocks the framework used involves moreover a stock flow interaction operated by inventory adjustments the stock flow interaction imposes at any time a future expected adjustment path for price level and quantities to the system s unique stock equilibrium a major implication of the analysis resolves a puzzle experienced in a recent paper by robert hall it reconciles intertemporal substitution with lagged effects of monetary impulses it also reconciles small and inconclusive cyclic movements in real wages with the occurrence of production function and large variations in unemployment lastly the nature of the inference problem determined by the pattern of incomplete information produces serially correlated movements conditioned on large permanent shocks

imperfect price discrimination and welfare we develop a model in which a monopolist uses differences across consumers in their valuation of time to imperfectly price discriminate though it is customary to analyse price discrimination problems by the calculus of variations after postulating a continuum of types we assume a finite number of types and exploit the geometry and duality of the contract set and the structure of the programming specification we analyse in detail the qualitative properties of the model s solution and show by construction that our results exhaust the implications of the model for equilibrium contract pairs we show that imperfect discrimination is not bounded in welfare terms between perfect discrimination and single price monopoly and that the deadweight loss consumer surplus and output comparisons between single price monopoly and imperfect discrimination are ambiguous

is universal child care leveling the playing field abstract we assess the case for universal child care programs in the context of a norwegian reform which led to a large scale expansion of subsidized child care we use non linear difference in differences methods to estimate the quantile treatment effects of the reform we find that the effects of the child care expansion were positive in the lower and middle parts of the earnings distribution of exposed children as adults and negative in the uppermost part we complement this analysis with local linear regressions of the child care effects by family income we find that most of the gains in earnings associated with the universal child care program relate to children of low income parents whereas upper class children actually experience a loss in earnings in line with the differential effects by family income we estimate that the universal child care program substantially increased intergenerational income mobility to interpret the estimated heterogeneity in child care effects we examine the mediating role of educational attainment and cognitive test scores and show that our estimates are consistent with a simple model where parents make a tradeoff between current family consumption and investment in children taken together our findings could have important implications for the policy debate over universal child care programs suggesting that the benefits of providing subsidized child care to middle and upper class children are unlikely to exceed the costs our study also points to the importance of universal child care programs in explaining differences in earnings inequality and income mobility across countries and over time

a theory of participation in elections we analyze a model of participation in elections in which voting is costly and no vote is pivotal ethical agents are motivated to participate when they determine that agents of their type are obligated to do so unlike previous duty based models of participation in our model an ethical agent s obligation to vote is determined endogenously as a function of the behavior of other agents our model predicts high turnout and comparative statics that are consistent with strategic behavior jel d72

the journals of economics we examine the principal journals of economics with particular attention to the communication between journals as reflected by the network of interjournal citations during 1987 90 and the changes over the past century in the characteristics of the authors and the techniques they have used the numerical results and those of the statistical modeling of these results reinforce the importance of economic theory as an exporter of intellectual influence to applied economics the study includes an examination of the degree of specialization among different subfields of economics a statistical model is presented for measuring the flow of intellectual influence as measured by citations in terms of simple univariate scores

an updated ranking of academic journals in economics we conduct an update of the ranking of economic journals by kalaitzidakis mamuneas and stengos 2003 however our present study differs methodologically from that earlier study in an important dimension we use a rolling window of years between 2003 and 2008 for each year counting the number of citations of articles published in the previous ten years this allows us to obtain a smoother longer view of the evolution of rankings in the period under consideration and avoid the inherent randomness that may exist at any particular year using this framework we proceed to examine the relative ranking of the canadian journal of economics over time we find the canadian journal managed not only to maintain its relative position but to also improve it over time

trends in the publication of empirical economics this paper documents recent trends in the publication of empirical articles in general interest economics journals three measures of journal quality are estimated the author finds substantial differences in publication rates of empirical articles among top tier and second tier journals and shows that the empirical percentages among general interest journals has been converging of late he offers potential explanations for the negative relationship between measured journal quality and empirical publication rates as well as the recent convergence

grading journals in economics the abcs of the abdc many institutions and governments grade academic journals for the evaluation of research in this paper we implement a multi bibliometric methodology for the evaluation of such a list of journal grades we examine the grades assigned by the australian business deans council abdc for over 750 journals in the fields of economics and statistics firstly we generate up to 48 bibliometric based grades for each journal based on the grade distribution implied by the abdc secondly we categorize the bibliometrics employing a cluster analysis of an interrater agreement statistic thirdly we present a visualization of the consistency of the grading by journal finally we list those journals where the majority of the matched bibliometrics indicate a higher or lower grade than their abdc grade

the impact of economics on management abstract this article analyzes the impact of economics on management by examining citations of 71 management journals aer jpe econometrica and qje have the highest impact industrial organization journals also have a particularly large impact the share of economics in management citations drops from 9 91 percent until 1995 to 5 70 percent for 1996 2005 three possible explanations for this decrease are analyzed economics research became more mathematical because management is a younger discipline it grew faster than economics in quantity and quality of research and interdisciplinary spillover of research is slower than the spillover within a discipline only the second explanation is supported by the data

european economics an analysis based on publications in the core journals abstract in this paper we provide a ranking of european economics institutions and countries based on publications in a core set of 10 economic journals from 1991 to 1996 we find that the three leading universities in europe are the london school of economics tel aviv university and oxford university while the three top ranked countries are the u k france and israel

tax policy reform the role of empirical evidence to understand the role of evidence in tax policy design this paper organizes the empirical analysis of reform under five loosely related headings i key margins of adjustment ii measurement of effective tax rates iii the importance of information and complexity iv evidence on the size of responses and v implications from theory for tax design the context for the discussion is the recently published mirrlees review of tax reform although the review focused on all aspects of tax reform this paper highlights the taxation of earnings it also comments on earnings taxation in the context of vat base broadening reforms and the taxation of capital

reputation and earnings the roles of quality and quantity in academe we examine the determinants of professional reputation does quantity of exposures raise reputation independent of quality does quality of the most important exposure have extra effects on reputation in a very large sample of academic economists there is little evidence that a scholar s most influential work provides any extra enhancement of reputation quality rankings matter more than absolute quality quantity has a zero or even negative effect on proxies for reputation data on salaries however show positive effects of quantity independent of quality we test explanations for the differences between the determinants of reputation and salary jel l14 j31

child care choices and children s cognitive achievement the case of single mothers we evaluate the effect of child care versus maternal time inputs on child cognitive development using single mothers from the nlsy79 to deal with nonrandom selection of children into child care we exploit the exogenous variation in welfare policy rules facing single mothers in particular the 1996 welfare reform and earlier state level policy changes generated substantial increases in their work child care use we construct a comprehensive set of welfare policy variables and use them as instruments to estimate child cognitive ability production functions in our baseline specification we estimate that a year of child care reduces child test scores by 2 1

theoretical and practical arguments for modeling labor supply as a choice among latent jobs models of labor supply derived from stochastic utility representations and discretized sets of feasible hours of work have gained popularity because they are more practical than standard approaches based on marginal calculus in this paper we argue that practicality is not the only feature that can be addressed by means of stochastic choice theory this theory also offers a powerful framework for developing a more realistic model for labor supply choices founded on individuals having preferences over jobs and facing restrictions on the choice of jobs and hours of work we discuss and clarify how this modeling framework deviates from both the conventional discrete approach van soest 1995 as well as the standard textbook approach based on marginal calculus hausman 1985 we furthermore discuss how the model based on job choice offers the possibility of conducting a richer set of simulations of alternative policies

causal effects of paternity leave on children and parents reserving a share of the parental leave period for fathers is considered necessary in order to induce fathers to take leave and to increase men s participation in child rearing we investigate how a parental leave reform directed towards fathers affected leave taking and in turn children s and parents long term outcomes a paternal leave quota greatly increases the share of men taking paternity leave we find evidence that children s school performance improves as a result particularly in families where the father has higher education than the mother we find no evidence that paternity leave counters the traditional allocation of parents labor supply

joint labor supply and childcare choice decisions of married mothers this paper examines the impact of childcare prices and wage rates on the joint employment and childcare mode center sitter relative and husband choice decisions of married mothers by estimating both a mixed logit and universal logit choice model data are drawn from the 1988 canadian national child care survey and the 1988 labour market activity survey the estimation results show that wages have a positive impact on the probability of choosing any of the working states and that childcare prices for center sitter and relative care reduce the probability of working and using each respective mode of care sensitivity analyses reveal that the wage elasticity for employment is fairly robust across model specifications while the own price elasticity of childcare is sensitive to model specification differing identifying assumptions in the estimation of childcare price equations and sample selection the simulation results show that differences exist in the degree to which government subsidies in the form of wage subsidies targeted childcare subsidies or unconditional childcare subsidies impact on labor supply decisions and decisions to substitute across different modes of care by those mothers already in the labor market

the relative impacts of economics journals 1970 1990 our data collection and database assembly efforts were assisted by john p sophocleus mark gwartney michele butler and scott ralston we received extremely valuable computer programming assistance from jon brunson and edward novak constructive comments were receivedfrom two anonymous reviewers financial supportfrom the faculty development committee at salisbury state university is gratefully acknowledged

leading institutional contributors to the elite economic journals given the prestige enjoyed by several economic departments there is a natural curiosity regarding their contributions to the economic literature this article analyses the appearance of all academic institutions worldwide in the eight leading economic journals the blue ribbon eight from 1991 to 2005 we cite those institutions who appear the most and analyse the composition of appearances across all eight journals to assess their degree of diversity while it is tempting to use these measures as a ranking of institutions the analysis is meant to be purely an historical appreciation of the contributions of these admirable institutions

the institutional concentration of authors in top journals of economics during the last two decades this paper addresses the institutional concentration of authors in 15 top economics journals from 1977 to 1997 the concentration of authors phd affiliations is substantially higher than the concentration of authors current affiliations relating input indicators such as population number of universities with economics departments or manpower in economics to publication output reduces the us dominance considerably whereas israel and the united kingdom come out excellently exporters and importers of phds among universities are identified concentration ratios like the herfindahl index lack a clear time trend nevertheless the position of the united states has been weakening in recent years

an up to date joint labor supply and child care choice model abstract norwegian parents of preschool children base their care choices on a completely different choice set from their predecessor now there is essentially only one type of nonparental care center based care and on the parental side fathers take a more pivotal role in early childhood care in the present paper we develop and estimate a joint labor supply and child care choice model that takes account of these new characteristics on the assumption that this model points to current and future modeling directions for several other economies too estimations suggest that the average wage elasticity for mothers is 0 25 0 30

agent based modeling public choice and the legacy of gordon tullock the future of modeling in public choice may be glimpsed by examining its evolution in economics for problems that are influenced by heterogeneity of actors social networks or emergence the arising of a complex system from simple phenomena such as adam smith s invisible hand economists increasingly are turning to agent based modeling agent based modeling is a form of computational analysis that focuses on agents rather than on aggregates in his long career as a founding scholar of public choice gordon tullock repeatedly followed the agent oriented approach of methodological individualism many of tullock s models are thus highly amenable to further exploration using that method as agent based modeling becomes more and more popular the importance of tullock s work will continue to grow

structural models of family labor supply a discrete choice approach a static neoclassical structural model is presented explaining labor supply of both spouses in two adult households in the netherlands family preferences are described with a direct translog utility function with the husbands leisure the wifes leisure and family income as its arguments we assume that the choice set of each family is finite account is taken of the dutch tax and benefits system we allow for hours restrictions and random preferences and account for unobserved wages of nonworkers the models are estimated using smooth simulated maximum likelihood results based upon dutch cross section data from 1987 are illustrated by confidence intervals for elasticities and by several policy simulations excerpt

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 effect of marginal tax rates on taxable income a panel study of the 1986 tax reform act this paper uses a treasury department panel of more than 4 000 taxpayers to estimate the sensitivity of taxable income to changes in tax rates on the basis of a comparison of the tax returns of the same individual taxpayers before and after the 1986 tax reform the analysis emphasizes that the response of taxable income involves much more than a change in the traditional measures of labor supply the evidence shows an elasticity of taxable income with respect to the marginal net of tax rate that is at least one and could be substantially higher the implications for recent tax rate changes are discussed

spending time and money within the household we consider both theoretically and empirically the allocation of time and money within the household the research question is whether a married person who enjoys more leisure than their partner also receives more consumption which seems to indicate the outcome of power within the household or receives less consumption which seems to indicate differing intrahousehold preferences we develop a simple parametric structural model with household production that is tested on survey data we find that relative wages have an impact on power for leisure this effect is dominated by a conventional wage effect in which the partner who has the higher wage takes less leisure

the great crash of 2008 and the reform of economics the 2008 economic crash led to remarkable shifts of opinion among world leaders does this crisis create favourable conditions for the reform and revitalisation of economics itself from a subject dominated by mathematical techniques to a discipline more oriented to understanding real world institutions and actors and why were warnings of financial collapse not heeded recent shortcomings are partly related to the global triumph of market individualist ideology and partly to the exaggerated roles of modelling and quantification these failures of economics are partly peculiar to the discipline and also a result of other wider institutional and cultural forces

collective labor supply and welfare the paper develops a general collective model of household labor supply in which agents are characterized by their own possibly altruistic preferences and household decisions are only assumed to be pareto efficient an alternative interpretation is that there are two stages in the internal decision process agents first share nonlabor income according to some given sharing rule then each one optimally chooses his or her own labor supply and consumption this setting is shown to generate testable restrictions on labor supplies moreover the observation of labor supply behavior is sufficient for recovering individual preferences and the sharing rule up to a constant finally the traditional tools of welfare analysis can be adapted to the new setting

just another niche in the wall how specialization is changing the face of mainstream economics there is considerable discussion on so called mainstream pluralism that is on the co presence of a variety of research programmes in today s mainstream economics that 1 significantly deviate from the neoclassical core 2 are pursued by different often separate communities of researchers and 3 have their origins outside economics the literature tends to regard mainstream pluralism as a transitory state towards a new post neoclassical mainstream this paper advances a new interpretation it suggests that the changing and fragmented state of mainstream economics is likely to persist over time under the impact of specialization as a self reinforcing mechanism and the creation of new specialties and approaches also through collaboration with researchers from other disciplines

overcoming incentive constraints by linking decisions consider a bayesian collective decision problem in which the preferences of agents are private information we provide a general demonstration that the utility costs associated with incentive constraints become negligible when the decision problem is linked with a large number of independent copies of itself this is established by defining a mechanism in which agents must budget their representations of preferences so that the frequency of preferences across problems mirrors the underlying distribution of preferences and then arguing that agents incentives are to satisfy their budget by being as truthful as possible we also show that all equilibria of the linking mechanisms converge to the target utility levels the mechanisms do not require transferable utility or interpersonal comparisons of utility and are immune to manipulations by coalitions

subdiscipline specific journal rankings whither applied economics in light of widespread specialization of research and teaching it seems appropriate to supplement the existing general rankings of economics journals with subdisciplinespeci c rankings that is the primary objective of this paper the availability of subdiscipline speci c rankings also permits both i alternative journal ranking methods for the general discipline that account for the breadth of a journal s impact across specialized elds and ii estimation of the relative weights implicitly associated with each eld in traditional disciplinary journal rankings the results are robust to the exclusion of self citations

labor supply as a choice among latent jobs unobserved heterogeneity and identification this paper discusses aspects of a framework for modeling labor supply where the notion of job choice is fundamental in this framework workers are assumed to have preferences over latent job opportunities belonging to worker specific choice sets from which they choose their preferred job the observed hours of work and wage is interpreted as the job specific hours and wage of the chosen job the main contribution of this paper is an analysis of the identification problem of this framework under various conditions when conventional cross section micro data are applied

childcare subsidies wages and employment of single mothers this paper develops and estimates a model for the choice of part time and full time employment and the decision to pay for childcare among single mothers the results indicate that a lower childcare price and a higher full time wage rate both lead to an increase in overall employment and the use of paid childcare the part time wage effects are found to be too small to have significant behavioral implications an analysis of cost effectiveness indicates that the additional hours of work generated per dollar of government expenditure is larger for a childcare subsidy than a wage subsidy

assessing the impact of a school subsidy program in mexico using a social experiment to validate a dynamic behavioral model of child schooling and fertility this paper uses data from a randomized social experiment in mexico to estimate and validate a dynamic behavioral model of parental decisions about fertility and child schooling to evaluate the effects of the progresa school subsidy program and to perform a variety of counterfactual experiments of policy alternatives our method of validation estimates the model without using post program data and then compares the model s predictions about program impacts to the experimental impact estimates the results show that the model s predicted program impacts track the experimental results our analysis of counterfactual policies reveals an alternative subsidy schedule that would induce a greater impact on average school attainment at similar cost to the existing program

the demand for quality in child care we estimate a model of demand for quality related attributes of child care group size staff child ratio and provider training the model is estimated jointly with equations for mode expenditure on and hours of care and the mother s labor supply the results show that a lower price of child care in a particular mode leads to substitution toward that mode and an increase in the use of paid child care a decrease in the price of care causes an increase in hours of care demanded and a decrease in the demand for qualityrelated attributes income effects on demand for quality are small

moral bias in large elections theory and experimental evidence in this article we provide evidence that voters in large elections tend to vote against their material self interest and to vote for a morally or ethically appealing alternative it may seem puzzling that voters might behave differently in small elections than they do in large ones however we show that such behavior is a logical consequence of voters having a conflict between obtaining a better material outcome and choosing a moral action we develop a simple model of this conflict and show that decreasing the probability that a single vote is decisive i e pivot probability reduces the importance of outcomes relative to actions in voter decision making because pivot probability is generally small in large elections alternatives that are understood by voters to be morally superior are more likely to win in large elections than in small ones thus compared to the preferences of voters election results will be biased in favor of moral alternatives 1 the model produces a set of predictions that we test in a laboratory experiment to clarify ideas consider a situation in which two outcomes are possible a and b assume that b gives

research note the researcher as a consumer of scientific publications how do name ordering conventions affect inferences about contribution credits when researchers from different fields with different norms collaborate the question arises of how name ordering conventions are chosen and how they affect contribution credits in this paper we answer these questions by studying two disciplines that exemplify the two cornerstones of name ordering conventions lexicographical ordering i e alphabetical ordering endorsed in economics and nonlexicographical ordering i e ordering according to individual contributions endorsed in psychology inferences about credits are unambiguous in the latter arrangement but imperfect in the former because alphabetical listing can reflect ordering according to individual contributions by chance we contrast the fields of economics and psychology with marketing a discipline heavily influenced by both based on archival data consisting of more than 38 000 journal articles we show that the three fields have different ordering practices in two empirical studies with 351 faculty and graduate student participants from all three disciplines as well as in a computer simulation we show that ordering practices systematically affect and shape the allocation of perceived contributions and credit whereas strong disciplinary norms in economics and psychology govern the allocation of contribution credits a more heterogeneous picture emerges for marketing this lack of strong norms has detrimental effects in terms of assigned contribution credits

imperfect price discrimination and variety in many environments a monopolist can price discriminate even though consumers can select any option offered by the firm though consumers seem indistinguishable to the firm the monopolist can discriminate by exploiting its knowledge of the joint distribution of agents characteristics in this paper locations and reservation prices to offer the most profitable menu of alternatives given the constraints imposed by the maximizing behavior of each type of consumer see chiang and spatt 1982 for a partial bibliography of this research in many of these models consumers agree typically on the definition of the best available good exceptions include adams and yellin 1976 and telser 1979 but disagree on their incremental valuation of quality the consumer s selection of a price quality contract from the set offered by the monopolist can elicit information that the monopolist endogenously exploits for example the price discriminating monopolist may charge a steeper price quality gradient than predicted by cost considerations see mussa and rosen 1978 in a spatial market the monopolist can discriminate on the basis of differences in cost of travel or location of consumers i analyze a model i analyze by geometric techniques a spatial model in which a monopolist uses location differences across consumers to price discriminate the model is used to examine price discrimination in a model of variety in a setting in which consumers disagree on the definition of quality the full burden of separation of types is not on binding self selection conditions examples are presented in the paper to show the ambiguous output and welfare comparisons between imperfect discrimination and singleprice monopoly at various extremes discrimination can either relative to single price monopoly make some consumers better off and none worse off while raising firm profit or alternatively reduce firm output the effect of an increase in the cost of travel on output variety and consumer surplus is demonstrated the implications of the model are also shown to be exhaustive under various assumptions about the set of observables x an earlier version of this paper was presented at the nber nsf conference on hierarchies monitoring and the nature of the firm at the university of minnesota minneapolis december 1980 1 gratefully acknowledge the helpful comments of the referee and support from national science foundation grant ses 8015086

core journals in economics gaines h liner this article ranks core journals in economics using the textbook citation method rankings are produced from citations in graduate level microeconomics macroeconomics and econometrics textbooks textbooks used in the study were chosen through responses from a survey of professors in top tier economics departments the top nine journals or core journals from this study correlate closely in rank with the results of two comparison studies second tier journals identified in this study correlate less closely in rank with second tier journals in comparison studies jel a i introduction between 1970 and 1990 the number of published pages in economics journals more than doubled laband and piette 1994 and during the early 1970s budgets of libraries devoted to journals grew in percentage terms several fold relative to those devoted to books liebowitz and palmer 1984 laband and piette 1994 reported that between 1976 and 1985 at least 55 new economics journals commenced publication although not all journals are considered general interest journals many emphasize the importance of economic theory in their submission instructions to authors with this increased emphasis on research scholars and administrators alike have acquired an increased sensitivity to how journals rank in quality influence or impact the variety of methods used to rank journals departments and authors attests to the increased concern individuals place on such issues the social sciences citation index ssci institute for scientific information 1986 has figured prominently as a source of data in a variety of studies burton and phimister 1995 laband and piette 1994 liebowitz and palmer 1984 and stigler et al 1995 provide recent examples another approach occasionally used in ranking of economics departments involves choosing citation data from the premier core or principal journals departmental rankings are then based on the number of journal articles or pages published by members of their faculty in these journals graves et al 1982 burkitt and baimbridge 1995 conroy et al 1995 scott and mitias 1996 and dusansky and vernon 1998 have used variations of this approach others have surveyed deans and chairpersons for their own rankings of journals see enomoto and ghosh 1993 for one recent example a potential weakness of this approach is that survey respondents can be influenced by recent and not so recent literature on the subject and by each other some earlier studies have attempted to rank journals by their quality see liebowitz and palmer 1984 for a review and beed and beed 1996 for a criticism of attempts to measure journal quality because an objective ranking of journals by their quality is difficult if not impossible most recent studies mentioned above have attempted to rank journals based on their impact or their influence ranking the number of citations to journal articles in other journal articles provides only one path to measuring the potential impact a journal has on individuals and the profession and ultimately the broader community davis 1998 pointed out that the often used ssci data under represent journals that share content with other social sciences a second problem noted is that not all of any journal s citations are identified by citing journal in every case the list is truncated and some portion of a journal s citations are simply entered as all other davis 1998 62 moreover the percentage of citations in the all other category is not necessarily the same from journal to journal this might bias raw counts of citations as well as attempts to adjust for impact by adjusting for the number of pages or the number of characters in the cited journals however these biases tend to have less impact on rankings of core journals than less highly ranked journals in attempts to rank authors of journal articles using ssci data alexander and mabry 1994 noted that the ssci does not include in the counts the second and subsequent authors of multiple author articles

the influence of economics articles on business research analysis of journals and time trends this article examines the influence of economics on business research using citation data the share of economics in citations from business is 10 78 until 1995 but only 6 95 for 1996 2003 four potential explanations for this decline are discussed interdisciplinary spillover of research is slower than within a discipline the increasing use of mathematics in economics made economics less useful for business scholars economics articles are by their nature more long lived than business articles business has grown recently more quickly than economics the data support the second and fourth explanations different research spillover occurs but lasts no more than two years

estimating labor supply responses and welfare participation using a natural experiment to validate a structural labor supply model in this paper we formulate and estimate an economic model of labor supply and welfare participation the model is estimated on data on single men from quebec drawn from the 1986 canadian census budget sets for each work welfare combination accounting for income taxes tax credits and welfare benefit rules are derived using a microsimulation model we validate our model by comparing reactions to a welfare reform that implied a dramatic increase in welfare benefits predicted by our model to those obtained by using a regression discontinuity approach the results show that our model is capable of recovering actual changes in labor supply and welfare participation we also show the advantage of having estimated a structural model by illustrating how labor supply and welfare participation change when benefit levels change

a structural model of child care and the labor supply of married women this article empirically examines married women s labor supply and child care expenditures the article uses winter 1984 85 data from the survey of income and program participation to estimate a fu

child care costs and family labor supply this paper presents a theoretical and empirical analysis of the effects of child care costs on family labor supply and the demand for market child care the model is a framework for cross section estimation of the effects of child care costs on labor supply and child care use it applies to households having young children requiring continuous care and in which both the mother and 1 other potential child care provider are present the 3 potential sources of child care are the mother the potential informal provider and the market using data from the 1980 baseline household survey of the employment opportunity pilot projects this empirical analysis uses a subsample of 6170 households in which there is a married woman under age 45 with her spouse present at the time of the survey at least 1 child under age 14 and nonmissing data on key variables results show that 1 higher market child care costs discourage women from working even when an informal source of care is available indicating that such informal care is an imperfect substitute for market care 2 a higher wage rate for the mother encourages her to work thus a higher wage rate increases the probability of using market child care 3 the number of children requiring care has a negative impact on the probability of the women working with the largest impact caused by younger children 4 nonwage income has a negative impact on the probability of the woman working and 5 black women are more likely to work than whites and are statistically more likely than whites to use market child care if they do work this family labor supply model predicts that the cost of market child care will affect household decisions on labor supply and child care use estimates of a qualitative choice model provide strong confirmation that child care costs affect such decisions the responsiveness of the labor supply of mothers to child care costs demonstrated in this study indicate that such subsidies do have their intended effect of encouraging labor supply the fact that a large proportion of current child care subsidies benefit primarily middle and upper income families via the income tax credit suggests that the labor supply effets of such subsidies may in practice be stronger for less needy families than for low income families employer subsidized child care may become an increasingly popular tool for attracting mothers into the labor force

a structural model of labor supply and child care demand this paper specifies and estimates a structural model in which the decision to purchase market child care and the quality purchased is made simultaneously with the employment decision of the mother separate analyses are performed for married mothers and single mothers the structural estimates are used to simulate the effects and costs of changes in the federal child care tax credit the simulations indicate that a refundable child care tax credit would distribute child care benefits more equally across the population by increasing the shares of subsidies received by low income families and would induce a considerable increase in expenditures on market child care labor supply also increases but by considerably less than child care expenditures a surprising result is that despite large increases in child care

a revisionist perspective of european research in economics abstract the study by kalaitzidakis et al eur econom rev 113 1999a 1150 1168 hereafter kms continues to exert significant influence on the literature that evaluates the relative publication performance of european centres of research in economics the current paper argues that the methodology employed by kms is deficient and that it is not the methodology these authors intended to employ i utilise an improved approach to revise the original rankings that relied on publication output from 1991 to 1996 and to update the relevant findings using 1997 2002 data the revised rankings differ greatly from those reported by kms the results also suggest that there have been dramatic shifts in the relative ranking of the various european institutions over time as expected rankings are sensitive to the choice of journals considered however ranking sensitivity is considerably more pronounced with respect to changes in individual performance over time than to the group of journals used to measure performance

sectoral labour supply choice restrictions and functional form this is the authors submitted article version which is the pre peer reviewed version of the article the article changed title in the peer reviewing process from analyzing labor supply behavior with latent job opportunity sets and institutional choice constraints later published as discussion paper no 399 http brage bibsys no ssb handle urn nbn no bibsys brage 21006

assessing editorial preferences towards industrial organization articles in order to evaluate the relative importance of articles on industrial organization published in major generalist or specialized scientific journals this empirical study has used the new 1991 jel classification system by regrouping contributions according to the type of article theoretical analysis industrial policy or industry studies a rate of multiple reference index has been introduced to examine the degree of relation between these three categories and used as a proxy for editorial preferences towards the type of treatment of the subject usually expected by the journal the article contents of nine generalist and five specialized journals are analysed for the two periods 1991 1995 and 1996 2000

household childcare choices and women s work behavior in russia the author models mothers participation in the labor force their working hours and household demand for childcare in russia the model estimates the effects of the price of childcare mothers wages and household income on household behavior and well being the theoretical model yields several predictions to test these reduced form equations of the discrete and continuous household choices are estimated jointly using the method of semi parametric full information maximum likelihood this method controls for the correlation of error terms across outcomes and the correlation of error terms that can result when panel data are used the results of this analysis indicate that the extent to which mothers participate in the labor force and for how many hours depends on the costs of childcare and on what level of hourly wage is available to them and to other members of the household the author s simulations show that family allowances intended to reduce poverty do not significantly affect the household choice of childcare arrangements replacing family allowances with childcare subsidies might have a strong positive effect on women s participation in the labor force and thus could be effective in reducing poverty