the chinese economy past present and future since initiating reforms in 1978 china has experienced an unprecedented rate of economic growth and development to become the second largest economy in the world after the united states yet there is so much that we do not know about the internal workings and operations of the chinese economy in part because the available english language literature is but a fraction of the scholarly work on china english speaking scholars business people analysts and policy makers are typically excluded from chinese language scholarship analysis and commentary or are often limited to executive summary type articles from business literature outlets we hope to fill at least part of the gap in the story of china past present and future with nine up to date surveys on some of the critical issues facing china which have been written by leaders in the relevant fields of scholarship

better schools less crime i estimate the impact of attending a first choice middle or high school on adult crime using data from public school choice lotteries in charlotte mecklenburg school district cms seven years after random assignment lottery winners had been arrested for fewer serious crimes and had spent fewer days incarcerated the gain in school quality as measured by peer and teacher inputs was equivalent to moving from one of the lowest ranked schools to one at the district average the reduction in crime comes largely from years after enrollment in the preferred school is complete the impacts are concentrated among high risk youth who commit about 50 less crime across several different outcome measures and scalings of crime by severity i find suggestive evidence that school quality explains more of the impact in high school whereas peer effects are more important in middle school copyright 2011 oxford university press

analyzing the impact of the world s largest public works project on crime india started the implementation of a rural public works program in 2006 covering all districts of the country within 3 years the program guarantees 100 days of employment per year at minimum wage to each rural household with the goal of reducing joblessness and poverty we exploit the design and implementation of this program to investigate its employment impact on various types of crimes to provide rare evidence on the employment crime relationship in a developing country context we find that employment generated by the program has a negative impact on both property crime and violent crime the same conclusion is reached when we analyze the impact of the program using its staggered rollout structure as the source of identification in a difference in difference analysis although crime elasticities with respect to employment are small this finding represents another dimension of the social benefit generated by the program jel k4 e24 h54

market price behavior of wholesale electricity products texas abstract applying a regression based approach to a newly developed sample of over 60 000 hourly observations for 01 01 2011 12 30 2017 we answer the question what moves the day ahead market dam prices for energy and ancillary services as and the real time market rtm price for energy in the electric reliability council of texas ercot our answer comprises the following findings that capture the interdependence of ercot s energy and as products 1 the dam energy price increases with the day ahead forecasts of natural gas price system load and as requirements but declines with nuclear and wind generation s forecasts 2 the as prices increase with the dam energy price and the as procurement forecasts but decline with the as offer forecasts and 3 the rtm energy price increases with the dam energy price but diverges from the dam energy price due to forecasting errors related to the dam energy price s fundamental drivers these findings imply that texas can reduce the prices for day ahead energy day ahead as and real time energy via wind generation development and demand side management further texas can improve its electricity trading efficiency by improving ercot s forecast accuracy to narrow the rtm energy price s divergence from the dam energy price

how large are search frictions textabstractthis paper presents strong evidence for the concavity of wages in job and worker characteristics by adding second order terms to a mincerian earnings function for 6 oecd countries under a standard normality assumption this concavity cannot be attributed to unobserved components in those characteristics an assignment model with search frictions provides a parsimonious explanation for our findings this model yields two restrictions on the coefficients which fit the data very well the impact of search frictions on wages is large our results relate to the literature on industry wage differentials on structural identification in hedonic models and on wage posting versus nash bargaining in search models

a review of efforts to restructure texas electricity market abstract comparisons suggest that texas has been relatively successful in its efforts to introduce greater competition and customer choice into its unique electricity market center for advancement of electricity markets 2002 yet texas has defied many of the common prescriptions in designing its market texas has yet to establish a nodal congestion management system that directly assigns local congestion costs to entities responsible for creating transmission congestion a liquid power exchange or spot market is absent programs designed to encourage demand side responsiveness had a slow start market concentration remains high market oversight activities are poorly funded a generation adequacy mechanism or planning reserve margin requirement remains under debate has texas simply been lucky in averting any real disasters or are these market features less important than commonly recognized this article reviews the restructuring initiative and reports some key lessons learned following the first twenty months under the new wholesale market structure and fifteen months of retail competition

are chinese cities too small this paper models and estimates net urban agglomeration economies for cities economic models of cities postulate an inverted u shape of real income per worker against city employment where the inverted u shifts with industrial composition across the urban hierarchy of cities this relationship has never been estimated in part because of data requirements china has the necessary data and context we find that urban agglomeration benefits are high real incomes per worker rise sharply with increases in city size from a low level they level out nearer the peak and then decline very slowly past the peak we find that a large fraction of cities in china are undersized due to nationally imposed strong migration restrictions resulting in large income losses

crime and punishment the role of student body characteristics in schools disciplinary behaviours abstractdiscretion in schools discipline choices can provide an efficient and effective misconduct management structure but could lead to discipline based on unrelated factors consequently schools disciplinary decisions can significantly limit students access to education by removing students from familiar learning environments we investigate schools disciplinary decisions for serious misconducts and show that punishments are more severe in schools that do not report misconducts to local law enforcement agencies moreover we show that schools that report fewer misconducts to law enforcement impose more severe punishments when the student body is characterized as having a higher proportion of minority students lower socioeconomic status students and a higher proportion of students who are below the 15th percentile of standardized test scores these results suggest that between school punishment differentials are associated with student body traits

the effect of female education on fertility and infant health evidence from school entry policies using exact date of birth this paper uses age at school entry policies to identify the effect of female education on fertility and infant health we focus on sharp contrasts in schooling fertility and infant health between women born just before and after the school entry date school entry policies affect female education and the quality of a woman s mate and have generally small but possibly heterogeneous effects on fertility and infant health we argue that school entry policies manipulate primarily the education of young women at risk of dropping out of school

valuing school quality using boundary discontinuities abstract existing research shows that house prices respond to local school quality as measured by average test scores however higher test scores could signal higher academic value added or higher ability more sought after intakes in our research we show that both school value added and student prior achievement linked to the background of children in schools affect households demand for education in order to identify these effects we improve the boundary discontinuity regression methodology by matching identical properties across admissions authority boundaries by allowing for boundary effects and spatial trends by re weighting our data towards transactions that are closest to district boundaries by eliminating boundaries that coincide with major geographical features and by submitting our estimates to a number of novel falsification tests our results survive this battery of tests and show that a one standard deviation change in either school average value added or prior achievement raises prices by around 3

child labor and the labor supply of other household members evidence from 1920 america this paper analyses the effect of child labor on household labor supply using 1920 us census micro data the aim of the analysis is to understand who in the household benefits from child labor in order to identify a source of exogenous variation in child labor i use state specific child labor laws i find that a rise in the proportion of working children by household is associated with no variation in parents labor supply i also find a strong negative externality among children as the proportion of working children by household rises everything else equal the probability that each child works falls while the probability that he attends school rises this suggests that parents redistribute entirely the returns from child labor to the children in the household consistent with a model of household labor supply with fully altruistic parents

education and crime over the life cycle we compare two large scale policy interventions aimed at reducing crime subsidizing high school completion and increasing the length of prison sentences to this purpose we use a life cycle model with endogenous education and crime choices we apply the model to property crime and calibrate it to u s data we find that targeting crime reductions through increases in high school graduation rates entails large efficiency and welfare gains these gains are absent if the same crime reduction is achieved by increasing the length of sentences we also find that general equilibrium effects explain roughly one half of the reduction in crime from subsidizing high school

earnings functions when wages and prices vary by location economists generally assume implicitly that the return to schooling is invariant across local labor markets we demonstrate that this outcome pertains if and only if preferences are homothetic a special case that seems unlikely our theory predicts that returns to education will instead be relatively low in expensive high amenity locations our analysis of u s data provides support for this contention returns to college are especially low in such cities as san francisco and seattle our findings call into question standard empirical exercises in labor economics that treat the returns to education as a single parameter

testing crime and punishment abstract the recent passage of the no child left behind act of 2001 solidified a national trend toward increased student testing for the purpose of evaluating public schools this new environment for schools provides strong incentives for schools to alter the ways in which they deliver educational services this paper investigates whether schools may employ discipline for misbehavior as a tool to bolster aggregate test performance to do so this paper utilizes an extraordinary data set constructed from the school district administrative records of a subset of the school districts in florida during the 4 years surrounding the introduction of a high stakes testing regime it compares the suspensions of students involved in each of the 41 803 incidents in which two students were suspended and where prior test scores for both students are observed while schools always tend to assign harsher punishments to low performing students than to high performing students throughout the year this gap grows substantially during the testing window moreover this testing window related gap is only observed for students in testing grades in summary schools apparently act on the incentive to re shape the testing pool through selective discipline in response to accountability pressures

monotone instrumental variables with an application to the returns to schooling for fifty years econometric analyses of treatment response have made extensive use of instrumental variable iv assumptions holding that mean response is constant across specified subpopulations of a population of interest 2 yet the credibility of mean independence conditions and other iv assumptions has often been a matter of considerable disagreement with much debate about whether some covariate is or is not a valid instrument in an application of interest there is therefore good reason to consider weaker but more credible assumptions to this end we introduce monotone instlumental variable miv assumptions holding that mean response varies weakly monotonically across specified subpopulations we study the identifying power of these miv assumptions and give an empirical application the findings reported here add to the literature developing nonparametric bounds on treatment effects 3 this paper uses the same formal setup as manski 1997 there is a probability space j x2 p of individuals each member j of population j has observable covariates xi e x and a response function yj t y mapping the mutually exclusive and exhaustive treatments t e t into outcomes yj t e y person j has a realized treatment zj e t and a realized outcome y 1 y zi both of which are observable the latent outcomes yj t

how migration restrictions limit agglomeration and productivity in china china strongly restricts rural urban migration resulting in a well acknowledged surplus of labor in agriculture but migration is also restricted within sectors this paper argues that these intra sector restrictions lead to insufficient agglomeration of economic activity in both the rural industrial and urban sectors with resulting first order losses in gdp for urban areas the paper estimates a city productivity relationship based on city gdp numbers the effects of access educational attainment fdi and public infrastructure on productivity are estimated given these worker productivity is shown to be an inverted u shape function of city employment with the peak point shifting out as industrial composition moves from manufacturing to services as predicted by urban theory as far as we know this is the first paper to actually estimate the relationship between output per worker and city scale for any country the majority of chinese cities are shown to be potentially undersized below the lower bound on the 95 confidence interval about the size where their output per worker peaks the paper calculates the large gains from increased agglomeration in both the rural industrial and urban sectors

juvenile incarceration human capital and future crime evidence from randomly assigned judges over 130 000 juveniles are detained in the united states each year with 70 000 in detention on any given day yet little is known about whether such a penalty deters future crime or interrupts social and human capital formation in a way that increases the likelihood of later criminal behavior this article uses the incarceration tendency of randomly assigned judges as an instrumental variable to estimate causal effects of juvenile incarceration on high school completion and adult recidivism estimates based on over 35 000 juvenile offenders over a 10 year period from a large urban county in the united states suggest that juvenile incarceration results in substantially lower high school completion rates and higher adult incarceration rates including for violent crimes in an attempt to understand the large effects we found that incarceration for this population could be very disruptive greatly reducing the likelihood of ever returning to school and for those who do return significantly increasing the likelihood of being classified as having an emotional or behavioral disorder jel codes k140 i210

does education improve citizenship evidence from the united states and the united kingdom abstract many studies document an association between schooling and civic participation but none credibly investigate causal links we explore the effect of extra schooling induced through compulsory schooling laws on the likelihood of becoming politically involved in the united states and the united kingdom we find that educational attainment is related to several measures of political interest and involvement in both countries we find a strong and robust relationship between education and voting for the united states but not for the united kingdom our us results approach the uk findings when conditioning on registration possibly indicating that registration rules present a barrier to participation

education s role in china s structural transformation abstract we explore education s role in improving the allocation of labor between china s agricultural and nonagricultural sectors and measure the portion of china s recent growth attributable to this channel using detailed micro level data and an empirical model that allows for the endogenous selection of education and sector of employment we estimate the relationship between an individual s educational attainment sector and income we find that about 11 of aggregate growth in output per worker from 1978 to 2004 is accounted for by increased education with 9 coming through the labor reallocation channel and 2 attributable to increased within sector human capital

the crime reducing effect of education in this article we study the crime reducing potential of education presenting causal statistical estimates based upon a law that changed the compulsory school leaving age in england and wales we frame the analysis in a regression discontinuity setting and uncover significant decreases in property crime from reductions in the proportion of people with no educational qualifications and increases in the age of leaving school that resulted from the change in the law the findings show that improving education can yield significant social benefits and can be a key policy tool in the drive to reduce crime

do dropouts drop out too soon wealth health and happiness from compulsory schooling abstract this paper uses compulsory schooling laws to evaluate high school dropout decisions the main empirical result is that lifetime wealth increases by about 15 with an extra year of compulsory schooling students compelled to stay in school are also less likely to report being in poor health unemployed and unhappy the main conclusion is that high school aversion alone is unlikely to explain why dropouts forgo substantial gains to lifetime wealth the results are more consistent with the possibility that adolescents ignore or heavily discount future consequences when deciding to drop out of school if teenagers are myopic making school compulsory or offering incentives to stay in school may help improve lifetime outcomes

schooling and citizenship in a young democracy evidence from postwar germany this paper examines whether schooling has a causal impact on individuals political interest voting turnout democratic values political involvement and political membership using two national representative samples between 1949 and 1969 the number of compulsory years of schooling was increased from eight to nine years in the federal republic of germany gradually over time and across federal states these legislative changes allow one to investigate the causal impact of years of schooling on citizenship in a young democracy years of schooling are found to be positively correlated with a broad range of citizenship outcomes however when exogenous increase in schooling through legislative changes is used there is little evidence of a causal efiect several potential explanations are examined 1 poor or apolitical teaching practices in the post war period 2 shortages of qualifled teachers and adequate teaching material 3 extra curricular civic education and 4 whether civic knowledge might have been acquired prior to the increase in schooling the estimates reject the flrst three explanations whereas ample historical evidence is in favour of the hypothesis that the fundamentals of democracy were learned already earlier in school

early late or never when does parental education impact child outcomes we estimate the causal effect of parents education on their children s education and examine the timing of the impact we identify the causal effect by exploiting the exogenous shift in parents education levels induced by the 1972 minimum school leaving age reform in england increasing parental education has a positive causal effect on children s outcomes that is evident in preschool assessments at age 4 and continues to be visible up to and including high stakes examinations taken at age 16 children of parents affected by the reform attain results around 0 1 standard deviations higher than those whose parents were not impacted

teachers pay for performance in the long run the dynamic pattern of treatment effects on students educational and labour market outcomes in adulthood this paper examines the dynamic effects of a teachers pay for performance experiment on long term outcomes at adulthood the program led to a gradual increase in university education of the treated high school students reaching an increase of 0 25 years of schooling by age 28 30 the effects on employment and earnings were initially negative coinciding with a higher rate of enrollment in university but became positive and significant with time these gains are largely mediated by the positive effect of the program on several high school outcomes including quantitative and qualitative gains in the high stakes matriculation exams

american policy conflict in the greenhouse divergent trends in federal regional state and local green energy and climate change policy climate change threatens significant impacts on global ecosystems and human populations to address this challenge industrialized nations have ratified the kyoto protocol and undertaken commitments to reduce emissions of greenhouse gases the primary agents linked to anthropogenic alteration of earth s climate by contrast the us government led by the bush administration has rejected mandatory targets for curbing emissions under the protocol and has instead pursued voluntary mitigation measures amid a larger push for clean coal and next generation nuclear technologies these actions in total have fueled global perceptions that the us is not acting in substantial ways to address climate change nevertheless action within the us is indeed moving forward with states cities and regional partnerships filling the federal leadership vacuum this paper reviews the diverse policies strategies and cooperative frameworks that have emerged at regional state and local levels to guide climate protection and identifies the environmental and economic benefits linked to such programs the paper also attempts to explain the existing federal impasse on climate policy with attention given to how sub national efforts may ultimately obviate national governmental inaction r 2007 elsevier ltd all rights reserved

how and why does immigration affect crime evidence from malaysia the perception that immigration fuels crime is an important source of anti immigrant sentiment using malaysian data for 2003 10 this paper provides estimates of the overall impact of economic imm

the effects of compulsory schooling on growth income distribution and welfare abstract in this paper we consider an olg model with productive capital and human capital affecting the quality of labor in each generation parents invest in their children s education but disregard its external effect on the aggregate production function government intervention in providing compulsory schooling increases economic growth along the equilibrium path while the intragenerational income distribution becomes more equal also in the long run the majority of individuals in each generation are better off due to compulsory schooling

education human capital and growth a personal perspective this article reviews the literature on the relationship of economic growth to the education levels of the labor force the emphasis is on yoram ben porath s contribution to some of the issues in this field the endogeneity of schooling the role of the public sector as an absorber of educated labor and the importance of personal human capital created by investments in reputation and personal relationships the f connection

public schooling college subsidies and growth abstract how does the mix of public education expenditures across primary and secondary k 12 education and post secondary college education influence economic growth to address this i build an overlapping generations endogenous growth model human capital is accumulated through compulsory k 12 education and through optional college education government uses tax revenue to provide quality in k 12 schooling and to subsidize college tuition when total expenditures are small all funds should provide k 12 quality when expenditures are above a critical value a positive share should subsidize tuition the share should increase with total expenditures and with the degree of complementarity of human capital accumulated through the two types of education also increased education spending is more likely to increase growth when a larger share subsidizes tuition

lessons from the bell curve this paper examines the argument presented in the bell curve a central argument is that one factor g accounts for correlation across test scores and performance in society another central argument is that g cannot be manipulated these arguments are combined to claim that social policies designed to improve social performance cannot be effective a reanalysis of the evidence contradicts this story the factors that explain wages receive different weights than the factors that explain test scores more than g is required to explain either other factors besides g contribute to social performance and they can be manipulated

compulsory schooling laws and school crime extensive literature demonstrates that compulsory schooling laws improve educational attainment well being civic involvement and labour market outcomes however at risk youth incapacitated to schools may impact the learning environment and school safety the purpose of this article is to study whether raising the minimum dropout age mda requirement above 16 increases crime committed within us public high schools a difference in difference estimation exploits changes in state level mda laws over time and indicates that schools in states that raise their mda requirement to 18 incur more overall crime relative to schools in states that do not while no effect on overall crime is identified when the mda requirement is raised to 17 furthermore these effects persist for 4 years after passage and more intensely in metropolitan areas coupling this research with existing literature suggests that when the mda requirement is raised to 18 only a small portion of the observed reduction in juvenile crime is

the effects of financial education in the workplace evidence from a survey of households abstract we use a novel household survey to investigate the effects of employer based financial education on personal saving we explore cross sectional relations between the availability of employer based financial education and various measures of asset accumulation and we interpret these patterns in light of various potentially confounding factors our findings favor the hypothesis that employer based financial education stimulates saving both in general and for retirement

on the validity of econometric techniques with weak instruments inference on returns to education using compulsory school attendance laws we evaluate angrist and krueger 1991 and bound jaeger and baker 1995 by constructing reliable confidence regions around the 2sls and liml estimators for returns to schooling regardless of the quality of the instruments the results indicate that the returns to schooling were between 8 and 25 percent in 1970 and between 4 and 14 percent in 1980 although the estimates are less accurate than previously thought most specifications by angrist and krueger 1991 are informative for returns to schooling in particular concern about the reliability of the model with 178 instruments is unfounded despite the low first stage f statistic finally we briefly discuss bias adjustment of estimators and pretesting procedures as solutions to the weak instrument problem

long lasting effects of socialist education abstract political regimes influence the content of education and criteria used to select and evaluate students we study the impact of a socialist education on the likelihood of obtaining a college degree and on several labor market outcomes by exploiting the reorganization of the school system in east germany after reunification our identification strategy uses cutoff birth dates for school enrollment that lead to variation in the length of exposure to the socialist education system within the same birth cohort an additional year of socialist education decreases the probability of obtaining a college degree and affects longer term labor market outcomes for men

does compulsory school attendance affect schooling and earnings we establish that season of birth is related to educational attainment because of school start age policy and compulsory school attendance laws individuals born in the beginning of the year start school at an older age and can therefore drop out after completing less schooling than individuals born near the end of the year roughly 25 percent of potential dropouts remain in school because of compulsory schooling laws we estimate the impact of compulsory schooling on earnings by using quarter of birth as an instrument for education the instrumental variables estimate of the return to education is close to the ordinary least squares estimate suggesting that there is little bias in conventional estimates every developed country in the world has a compulsory schooling requirement yet little is known about the effect these laws have on educational attainment and earnings 1 this paper exploits an unusual natural experiment to estimate the impact of compulsory schooling laws in the united states the experiment stems from the fact that children born in different months of the year start school at different ages while compulsory schooling laws generally require students to remain in school until their sixteenth or seventeenth birthday in effect the interaction of school entry requirements and compulsory schooling laws compel students born

has electric utility restructuring led to lower electricity prices for residential consumers in texas this paper analyzes the determination of residential electricity prices in the competitive electric reliability council of texas ercot market this analysis suggests that electricity restructuring in texas has not yet resulted in lower prices for the majority of residential energy consumers in areas open to competition contrary to common expectations residential electricity costs for consumers at a typical 1000 kwh per month consumption level have increased at a greater rate in the areas of texas offering retail choice than in the areas of the state where retail competition has not been introduced

the economics of financing higher education different arguments exist pro and contra tax financed subsidies in higher education it has been argued that private incentives to study are sufficiently high while the financing of those subsidies can be deemed regressive as they are co financed by relatively poorer non students alternatively several arguments have been put forward why higher tax financed subsidies are desirable such as externalities and credit constraints this study scrutinizes these different arguments and discusses the implications for the different ways in which higher education can be financed calculations of private returns across the oecd confirm that private incentives to invest in higher education are high however economic theory poses that it is the marginal social return that must guide policy which will reflect both equity and efficiency considerations we assess the potential regressivity of higher education subsidies using different perspectives and assess the different efficiency arguments for government intervention in higher education tax financed subsidies turn out to be regressive in most cases but depending on the perspective and the country under examination discussion of the efficiency arguments is focused on those that are most relevant in light of the empirical evidence and their relevance for the different financing modes externalities uninsurable risk credit constraints and misprediction we conclude that to deal with the more credible failures in higher education tax financed subsidies are blunt instruments for a large share of the countries under consideration shifting towards income contingent loans or graduate taxes appears more appropriate when taking into account both efficiency and equity considerations

does school quality matter returns to education and the characteristics of public schools in the united states this paper estimates the effects of school quality measured by the pupil teacher ratio average term length and relative teacher pay on the rate of return to education for men born between 1920 and 1949 using earnings data from the 1980 census we find that men who were educated in states with higher quality schools have a higher return to additional years of schooling rates of return are also higher for individuals from states with better educated teachers and with a higher fraction of female teachers holding constant school quality measures however we find no evidence that parental income or education affects average state level rates of return

minimum wages and teenagers enrollment employment outcomes a multinominal logit model this paper tests the hypothesis that the effect of minimum wage legislation on teenagers education decisions is asymmetrical across family income classes with the legislation inducing children from low income families to reduce their levels of schooling and children from higher income families to increase their educational attainment we use data from the national longitudinal surveys nls and exploit the fact that although the minimum wage is fixed at a point in time its value relative to adult wages varies across areas multinomial logit models of teenagers enrollment employment outcomes are estimated the hypothesis appears to be confirmed for white teens however the evidence for nonwhites is more ambiguous

structural estimation of a becker ehrlich equilibrium model of crime allocating police across cities to reduce crime we develop a model of crime in which the number of police the crime rate the arrest rate the employment rate and the wage rate are joint outcomes of a subgame perfect nash equilibrium the local government chooses the size of its police force and citizens choose among work home and crime alternatives we estimate the model using metropolitan statistical area msa level data we use the estimated model to examine the effects on crime of targeted federal transfers to local governments to increase police we find that knowledge about unobserved msa specific attributes is critical for the optimal allocation of police across msa s

the compelling effects of compulsory schooling evidence from canada abstract compulsory school laws have existed for more than a hundred years and policies to mandate further education continue to be discussed the implications of these laws however are not well understood historical changes to compulsory schooling in canada permit an examination of their effects on would be dropouts under very different circumstances than those during changes in other countries mandating education substantially increased adult income and substantially decreased the likelihood of being below the low income cut off unemployed and in a manual occupation these findings suggest significant gains from this legislation which seem unlikely offset by the costs incurred while having to remain in school jel classification i20 i28

returns to education evidence from u k twins we use a new sample of uk female identical twins to estimate private economic returns to education we report findings in three areas first we use identical twins to control for family effects and genetic ability bias and the education reported by the other twin to control for schooling measurement error our estimates suggest a return to schooling for uk females of about 7 7 second we investigate within twin pair ability differences by examining within twin pair and between family correlations of education with observable correlates of ability including birthweight ability tests and reading scores our findings suggest lower ability bias in within twin pair regressions than pooled regressions third using data on twins smoking we show smoking reflects family background and using it as an instrument exacerbates ability bias this abstract was borrowed from another version of this item

using unemployment rates as instruments to estimate returns to schooling i use state unemployment rates during a person s teenage years to estimate the returns to schooling a higher unemployment rate reduces the opportunity costs of attending school using the same 1980 census data set that angrist and krueger 1991 use i also estimate returns to schooling with a modified version of their quarter of birth instrument the estimates from the two stage least squares 2sls model using the unemployment rate and the model using the quarter of birth instruments are almost identical in addition these 2sls estimates are larger than the ordinary least squares ols estimates supporting this counterintuitive yet prevalent result in the literature

estimation of limited dependent variable models with dummy endogenous regressors applied economists have long struggled with the question of how to accommodate binary endogenous regressors in models with binary and nonnegative outcomes i argue here that much of the difculty with limited dependent variables comes from a focus on structural parameters such as index coefcients instead of causal effects once the object of estimation is taken to be the causal effect of treatment several simple strategies are available these include conventional two stage least squares multiplicative models for conditional means linear approximation of nonlinear causal models models for distribution effects and quantile regression with an endogenous binary regressor the estimation strategies discussed in the article are illustrated by using multiple births to estimate the effect of childbearing on employment status and hours of work

identification weak instruments and statistical inference in econometrics we discuss statistical inference problems associated with identification and testability in econometrics we consider inference in non parametric models and weakly identified structural models weak instruments we point out that many ill defined statistical problems such as non testable hypotheses occur in these areas and are typically associated with asymptotic approximations in non parametric models such problems include testing moments and inference under heteroscedasticity or serial dependence of unknown form for weakly identified structural models difficulties are typically associated with improper pivots and we review recent developments aimed at proposing more reliable procedures including alternative proposed statistics bounds projection split sampling conditioning monte carlo tests jel classification c1 c12 c14 c15 c3 c5 identification instruments faibles et inference statistique en econometrie nous analysons les problemes d inference associes a l identification et a la testabilite en econometrie nous considerons l inference dans les modeles non parametriques et les modeles structurels faiblement identifies instruments faibles nous remarquons que beaucoup de problemes mal poses tels que des hypotheses non testables apparaissent dans ces domaines et que ceux ci sont typiquement associes a l emploi d approximations asymptotiques dans les modeles non parametriques de tels problemes incluent les tests sur les moments et l inference sous heteroscedasticite ou dependance serielle de forme non specifiee dans les modeles structurels faiblement identifies ces difficultes sont habituellement associees a l emploi de fonctions pivotales impropres et nous presentons un survol des methodes recentes ayant pour objectif d obtenir des procedures plus fiables ce qui comprend les differentes statistiques proposees l emploi de bornes la subdivision d echantillon les techniques de projection le conditionnement et les tests de monte carlo

did the expiration of retail price caps affect prices in the restructured texas electricity market on january 1 2007 the electric reliability council of texas ercot market became the first restructured market in the us to completely remove caps on the prices which could be charged to residential energy consumers by the retailers associated with the traditional or incumbent utility service providers our analysis suggests that the expiration of the price to beat ptb price caps may have led to a reduction in the average prices charged by competitive retail electric providers reps

crime and economic incentives we explore the role that economic incentives particularly changes in wages at the bottom end of the wage distribution play in determining crime rates we use data on the police force areas of england and wales between 1975 and 1996 and find relative falls in the wages of low wage workers lead to increases in crime we carry out a number of experiments with different wage measures including a wage measure that accounts for the effects of changes in the composition of employment these reinforce the picture of a strong association between the low wage labor market and crime the result that incentives play a central role is reinforced further by the strong impact on crime of deterrence measures and of a measure of the returns to crime

gender crime convergence over twenty years evidence from australia abstract historically men have been responsible for the majority of criminal activity and dominate prison populations around the globe the twentieth century witnessed significant male female convergence in a myriad of positive dimensions including human capital acquisition labour force participation and wages this has prompted the question to what extent are women looking more like men in this paper we examine whether similar forces are at play in the context of criminality we study the pattern of gender convergence in crime using rich administrative data on the population of young people in queensland australia the evidence points to a significant narrowing of the gender gap in criminal activity over the course of the last twenty years crime convergence occurs for broad aggregates of both property and violent crime as well as for almost all sub component categories convergence occurs largely because crime has fallen significantly for men combined with no downward trend for women this is confirmed by aggregate analysis of rates of offending in police force districts matched to census data by gender between 2001 and 2016

criminal deterrence revisiting the issue with a birth cohort we estimate the general deterrent effect of criminal justice resources on criminal behavior using panel data for a sample representative of young men in u s urban areas our data which combine individual level information on arrests and personal characteristics with aggregate information on criminal justice resources allow us to obtain deterrence measures that reflect theoretical concepts and are of potential policy relevance we find robust evidence of a general deterrent effect flowing from criminal justice particularly police resources the nature of our data also allows us to conduct extensive exogeneity tests and to explore a number of possible third causes for the deterrent effect we find strong evidence that our deterrence variables are exogenous and no evidence that our deterrence result stems from commonly hypothesized third causes copyright 1994 by mit press

persistent commodity shocks and transitory crime effects abstract this paper studies the dynamic response of crime to a positive income shock we estimate the short and medium run effects that an increase in copper price had on the local economy and on criminal activity in chile which is the world s leading copper producer after a decade of high prices mining municipalities did not exhibit lower crime rates compared to non mining municipalities to explain this counterintuitive result we investigated heterogeneous dynamic effects and observed that property crimes decreased only at the beginning of the boom as the dynamics of unskilled employment are consistent with the crime cycle we argue that crime evolves due to temporary labor market adjustments

urbanization and urban systems in the people s republic of china research findings and policy recommendations this paper provides a literature review on urbanization in the people s republic of china prc research findings indicate that the prc s urbanization is incomplete its level of urbanization lags behind its industrialization and development status and while there are too many small cities the large cities are not large enough this is mainly because of the institutional constraints exerted by the hukou and land systems on labor mobility which have led to segregation efficiency loss distortion in the urban system and adverse impacts on equity as discussed in this study major policy recommendations are offered for removing the distortions and steering the prc s urbanization onto an efficient and equitable path

urban accounting and welfare why do people live in particular cities we can list many reasons but two are undoubtedly relevant agents can enjoy the city or be more productive there a combination of life amenities and productivity levels determines the size of cities but the positive effects of these characteristics are capped by the costs and frictions arising from congestion depending on city governance and the flexibility of markets these costs and frictions can be more or less important these city characteristics are in turn enhanced and amplified by the presence of urban externalities understanding the different forces that determine city sizes is crucial for answering a broad set of questions what is the relative importance of these forces in determining the size distribution of cities how much would we gain or lose if cities had similar amenities technology levels or frictions how much reallocation would this cause more generally what are the welfare implications of the location of agents across cities in this paper we provide a simple way of decomposing the characteristics that lead to the size distribution of cities into three main components efficiency amenities and excessive frictions we use a simple urban theory to calculate these components and to carry out a wide set of counterfactual exercises that provide answers to the questions we asked above the theory consists of a multi city model with monocentric cities that produce a single good workers decide how much to work and where to live efficiency is modeled as tfp amenities as directly affecting preferences

panic on the streets of london police crime and the july 2005 terror attacks in this paper we study the causal impact of police on crime by looking at what happened to crime before and after the terror attacks that hit central london in july 2005 the attacks resulted in a large redeployment of police officers to central london boroughs as compared to outer london in fact police deployment in central london increased by over 30 percent in the six weeks following the july 7 bombings during this time crime fell significantly in central relative to outer london study of the timing of the crime reductions and their magnitude the types of crime which were more likely to be affected and a series of robustness tests looking at possible biases all make us confident that our research approach identifies a causal impact of police on crime implementing an instrumental variable approach shows an elasticity of crime with respect to police of approximately 0 3 so that a 10 percent increase in police activity reduces crime by around 3 percent

schooling and monetary rewards in greece an over education false alarm the paper uses data from the 1993 94 household survey to investigate a number of issues stemming from the current educational policy debate in greece private and social returns to investment in education are estimated and a test of the screening hypothesis is conducted no evidence was found that higher education is being used as a screening device and the returns to investment in education have been maintained to just below their level in the 1960s the central finding of the paper is that the fear of further expansion of the university system is highly exaggerated and that the economy could absorb even larger amounts of highly educated manpower of course such expansion could not take place unless there is an end of the state monopoly on the financing and provision of tertiary education

the craft of labormetrics using a wide array of examples from the literature and from original estimates the author examines the pitfalls that make good empirical research in labor economics at least as much craft as statistical technique among the subjects discussed are the appropriateness and cleanliness of data problems of extreme observations the validity of attempts to produce exogeneity using instrumental variables natural experiments and structural models and the treatment of selectivity and unobservable individual effects the author stresses the importance of testing empirical results to ensure that they make sense and of presenting them clearly and economically

market wages and youth crime to study the problem of widespread youth crime i analyze a timeallocation model in which consumers face parametric wages and diminishing marginal returns to crime the theory motivates an econometric model that i estimate using data from the national longitudinal survey of youth my estimates suggest that youth behavior is responsive to price incentives and that falling real wages may have been an important determinant of rising youth crime during the 1970s and 1980s moreover wage differentials explain a substantial component of both the racial differential in criminal participation and the age distribution of crime

liberalization and rent seeking in china s labor market communist party membership can generate labor market benefits in at least two ways first the party may hand out direct benefits to favored groups in the form of higher earnings alternatively the party may function in much the same way as education in western countries screening workers for talent and motivation we find very little evidence of earnings premiums to party membership or to cadre status prior to chinese market liberalization with liberalization comes less emphasis on being red and a greater capacity to earn wages that reflect ability both observed through schooling and identified by the party we find that party premiums are inversely related to education modest premiums to cadre status appear in 1995

green returns to education does schooling contribute to pro environmental behaviours evidence from thailand we investigate whether there are green returns to education where formal education encourages pro environmental behaviours using nationally representative surveys on environmental issues in thailand to establish the causal relationship between education and green behaviours we exploit the instrumental variables strategy using the supply of state primary schooling i e the corresponding number of teachers per 1000 children which varies over time and across regions as the instrument while controlling for regional cohort and income effects we find that more years of schooling lead to a greater probability of taking knowledge based environmentally friendly actions a great deal but not cost saving pro environmental actions in addition the paper finds no significant impact of formal education on concern about global warming nor the willingness to pay for environmental tax

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

the effect of education on crime evidence from prison inmates arrests and self reports we estimate the effect of high school graduation on participation in criminal activity accounting for endogeneity of schooling we begin by analyzing the effect of high school graduation on incarceration using census data instrumental variable estimates using changes in state compulsory attendance laws as an instrument for high school graduation uncover a significant reduction in incarceration for both blacks and whites when estimating the impact of high school graduation only ols and iv estimators estimate different weighted sums of the impact of each schooling progression on the probability of incarceration we clarify the relationship between ols and iv estimates and show that the weights placed on the impact of each schooling progression can explain differences in the estimates overall the estimates suggest that completing high school reduces the probability of incarceration by about 76 percentage points for whites and 3 4 percentage points for blacks we corroborate these findings using fbi data on arrests that distinguish among different types of crimes the biggest impacts of graduation are associated with murder assault and motor vehicle theft we also examine the effect of drop out on self reported crime in the nlsy and find that our estimates for imprisonment and arrest are caused by changes in criminal behavior and not educational differences in the probability of arrest or incarceration conditional on crime we estimate that the externality of education is about 14 26 of the private return to schooling suggesting that a significant part of the social return to education comes in the form of externalities from crime reduction

changes in compulsory schooling education and the distribution of wages in europe using data from 12 european countries and the variation across countries and over time in the changes of minimum school leaving age we study the effects of the quantity of education on the distribution of earnings we find that compulsory school reforms significantly affect educational attainment especially among individuals belonging to the lowest quantiles of the distribution of ability there is also evidence that additional education reduces conditional wage inequality and that education and ability are substitutes in the earnings function

human capital vs signalling explanations of wages increases wages by directly increasing the worker s productivity this learning explanation is usually associated with human capital theory however it seems unlikely that learning explains all the wage differences associated with schooling and work history better educated workers are not a random sample of workers they have lower propensities to quit or to be absent are less likely to smoke drink or use illicit drugs and are generally healthier it is unlikely that employers make full use of differences in propensities to quit or to be absent or sick when hiring workers these characteristics are often not directly observed and the americans with disabilities act precludes firms from using either poor health or the likelihood of future sickness as a hiring criterion unless it is directly related to job performance however if low levels of education are associated with these unfavorable employee characteristics and employers are allowed to take education into account when hiring workers we would expect employers to favor better educated workers as a means of reducing their costs of sickness and job turnover in turn students will take these hiring criteria into account when deciding how long to stay in school students will choose a length of schooling to signal their ability to employers and employers will demand a minimum level of schooling

efficient estimation with panel data when instruments are predetermined an empirical comparison of moment condition estimators i examine the empirical performance of instrumental variables estimators with predetermined instruments in an application to life cycle labor supply under uncertainty the estimators studied are two stage least squares generalized method of moments gmm forward filter independently weighted gmm and split sample instrumental variables i compare the bias efficiency trade off for the estimators using bootstrap algorithms suggested by freedman and by brown and newey results indicate that the downward bias in gmm is quite severe as the number of moment conditions expands outweighing the gains in efficiency the forward filter estimator however has lower bias and is more efficient than two stage least squares

estimating the effect of financial aid offers on college enrollment a regression discontinuity approach an important problem faced by colleges and universities that of evaluating the effect of their financial aid offers on student enrollment decisions is complicated by the likely endogeneity of the aid offer variable in a student enrollment equation this article shows how discontinuities in an east coast college s aid assignment rule can be exploited to obtain credible estimates of the aid effect without having to rely on arbitrary exclusion restrictions and functional form assumptions semiparametric estimates based on a regression discontinuity rd approach affirm the importance of financial aid as an effective instrument in competing with other colleges for students

educational reform ability and family background in this paper we evaluate the impact of a major school reform that took place in the 1950s in sweden on educational attainment and earnings the reform which has many common elements with reforms in other european countries including the uk consisted of increasing compulsor schooling imposing a national curriculum and abolishing selection by ability into academic and non academic streams at the age of 12 comprehensive school reform our data combines survey data with administrative sources we find that the reform increased both the educational attainment and the earnings of children whose fathers had just compulsory education however the earnings of those with educated parents declined possibly because of a dilution of quality at the top end of the education levels the overall effect of the reform was however positive

does incarceration length affect labor market outcomes abstractthis paper studies how longer incarceration spells affect offenders labor market outcomes by using a reform that increased incarceration lengths by approximately 1 month i use detailed register data for offenders who predominantly serve incarceration spells of 1 2 months i analyze the sample for several years prior to and after incarceration and show that the reform led to an exogenous increase in incarceration lengths i find that the longer incarceration spells result in lower unemployment rates and higher earnings possibly because marginal increases in short incarceration spells improve conditions and incentives for rehabilitation while the costs of jail related to these outcomes are unaffected i show that the estimates are robust to different econometric specifications and further provide evidence that my results are not driven by changes in macroeconomic conditions

growth population and industrialization and urban land expansion of china china is experiencing urbanization at an unprecedented rate over the last two decades the overall goal of this paper is to understand the extent of and the factors driving urban expansion in china from the late 1980s to 2000 we use a unique three period panel data set of high resolution satellite imagery data and socioeconomic data for entire area of coterminous china consistent with a number of the key hypotheses generated by the monocentric model our results demonstrate the powerful role that the growth of income has played in china s urban expansion in some empirical models the other key variables in the monocentric model population the value of agricultural land and transportation costs also matter adapting the basic empirical model to account for the environment in developing countries we also find that industrialization and the rise of the service sector appear to have affected the growth of the urban core but their role was relatively small when compared to the direct effects of economic growth we also make a methodological contribution demonstrating the potential importance of accounting for unobserved fixed effects

happy birthday you re insured gender differences in work ethics this study investigates the potential existence of cheating within the sickness insurance program results indicate that young male workers have strong preferences for leisure linked to birthday celebrations other workers appear to consider the costs of reporting in sick around birthdays as relatively large

the erroneous use of china s population and per capita data a structured review and critical test hundreds of studies in economics misinterpret china s subnational population and per capita data the most widely used population counts are of hukou registrations from each province prefecture county or city rather than of the people living in each place and generating local gross domestic product over 220 million people have left their place of registration while almost none had when reforms began creating time varying errors in estimates of per capita income of subnational units we survey empirical articles in blue ribbon journals in development journals and in regional and urban economics journals that use china s subnational data over 80 of articles use these data erroneously most commonly the wrong population or employment counts are used to measure the size of subnational units and per capita data are calculated with the wrong denominator for how variables are interpreted we provide examples of errors from each group of journals and a critical test of one highly cited study specifically we show that if hukou registrations are erroneously used to measure the local population following existing practice conclusions about driving forces for urban area expansion are reversed we give recommendations for more careful use of china s subnational population and per capita data

estimating average and local average treatment effects of education when compulsory schooling laws really matter the change to the minimum school leaving age in the united kingdom from 14 to 15 had a powerful and immediate effect that redirected almost half the population of 14 year olds in the mid twentieth century to stay in school for one more year the magnitude of this impact provides a rare opportunity to a estimate local average treatment effects late of high school that come close to population average treatment effects ate and b estimate returns to education using a regression discontinuity design instead of previous estimates that rely on difference in differences methodology or relatively weak instruments comparing late estimates for the united states and canada where very few students were affected by compulsory school laws to the united kingdom estimates provides a test as to whether instrumental variables iv returns to schooling often exceed ordinary least squares ols because gains are high only for small and peculiar groups among the more general population i find instead that the benefits from compulsory schooling are very large whether these laws have an impact on a majority or minority of those exposed

regulation in the market for education and optimal choice of curriculum we analyze educational institutions incentives to set up demanding or lax curricula in duopolistic markets for education with endogenous enrolment of students we assume that there is a positive externality of student achievement on the local economy comparing the case of regulated tuition fees with an unregulated market we identify the following ine ciencies under regulated tuition fees schools will set up ine ciently lax curricula in an attempt to please low quality students even if schools internalize some of the externality on the other hand unregulated schools set up excessively di erentiated curricula in order to relax competition in tuition fees deregulation gets more attractive if a larger fraction of the externality is internalized

priceless the nonpecuniary benefits of schooling copyright 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 by the american economic association permission to make digital or hard copies of part or all of american economic association publications for personal or classroom use is granted without fee provided that copies are not distributed for profit or direct commercial advantage and that copies show this notice on the first page or initial screen of a display along with the full citation including the name of the author copyrights for components of this work owned by others than aea must be honored abstracting with credit is permitted the author has the right to republish post on servers redistribute to lists and use any component of this work in other works for others to do so requires prior specific permission and or a fee permissions may be requested from the american economic association administrative office by going to the contact us form and choosing copyright permissions request from the menu copyright 2016 aea

why did the ssi disabled program grow so much disentangling the effect of medicaid the number of participants in the ssi program grew by 1 1 million from 1987 to 1993 this paper examines the role of medicaid on the ssi participation decision i use the rapid growth in average medicaid expenditure as a proxy for its value ols estimates of medicaid s effect may be biased because of omitted variables bias and measurement error i therefore apply two stage least squares to estimate medicaid s effect using average medicaid expenditure for blind ssi recipients as an instrument these estimates show that rising medicaid expenditure significantly increased ssi participation among adults with low permanent incomes explaining 20 of the growth

a numerical simulation analysis of hukou labour mobility restrictions in china abstract we use numerical simulation methods to analyze the hukou system of permanent registration in china which many believe has supported growing relative inequality over the last 20 years by restraining labour migration both between the countryside and urban areas and between regions and cities our aim is to inject economic modelling into the debate on sources of inequality in china which thus far has been largely statistical we first use a model with homogeneous labour in which wage inequality across various geographical divides in china is supported solely by quantity based migration restrictions urban rural areas rich poor regions eastern central and western non coastal zones eastern and central western development zones eastern central western zones more disaggregated 6 regional classifications and an all 31 provincial classification we calibrate this model to base case data and when we remove migration restrictions all wage and most income inequality disappears results from this model structure points to a significant role for hukou restrictions in supporting inequality in china we then present a further model extension in which urban house price rises retard rural urban migration the impacts of removing hukou restrictions on migration are smaller but are still significant finally we modify the model to capture labour productivity differences across regions calibrating the modified model to estimates of both national and regional gini coefficients removal of migration barriers is again inequality improving but less so

forced to be rich returns to compulsory schooling in britain do students benefit from compulsory schooling in an important article oreopoulos 2006 studied the 1947 british compulsory schooling law change and found large returns to schooling of about 15 using the general household survey ghs re analysing this dataset we find much smaller returns of about 3 on average with no evidence of any positive return for women and a return for men of 4 7 additionally we utilise the new earnings survey panel data set nespd that has earnings information superior to that in the ghs and find similar estimates zero returns for women and returns of 3 to 4 for men

returns to investment in education a global update the author updates compilations of rate of return estimates to investment in education published since 1985 and discusses methodological issues surrounding those estimates some key patterns among the three main levels of education primary education continues to exhibit the highest social profitability in all world regions private returns are considerably higher than social returns because of the public subsidization of education the degree of public subsidy increases with the level of education which is regressive social and private returns at all levels generally decline by the level of a country s per capita income overall the returns to female education are higher than those to male education but at individual levels of education the pattern is more mixed the returns to the academic secondary school track are higher than the vocational track since unit cost of vocational education is much higher and the returns for those who work in the private competitive sector of the economy are higher than in the public noncompetitive sector and the returns in the self employment unregulated sector of the economy are higher than in the dependent employment sector controversies in the literature are discussed in the light of the new evidence the undisputable and universal positive correlation between education and earnings can be interpreted in many ways the causation issue on whether education really affects earnings can be answered only with experimental data generated by randomly exposing different people to various amounts of education given the fact that moral and pragmatic considerations prevent the generation of such pure data researchers have to make do with indirect inferences or natural experiments some have been attempted the author looks at the research on overeducation or surplus schooling the conclusions reinforce earlier patterns they confirm that primary education continues to be the number one investment priority in developing countries they also show that educating females is marginally more profitable than educating males that the academic secondary school curriculum is a better investment than the technical vocational tract and that the returns to education obey the same rules as investment in conventional capital that is they decline as investment is expanded