can falling supply explain the rising return to college for younger men a cohort based analysis although the college high school wage gap for younger u s men has doubled over the past 30 years the gap for older men has remained nearly constant in the united kingdom and canada the college high school wage gap also increased for younger relative to older men using a model with imperfect substitution between similarly educated workers in different age groups we argue that these shifts reflect changes in the relative supply of highly educated workers across age groups the driving force behind these changes is the slowdown in the rate of growth of educational attainment that began with cohorts born in the early 1950s in all three countries

on the optimal design of place based policies a structural evaluation of eu regional transfers we quantify general equilibrium effects of place based policies in a multi region framework with population mobility trade and agglomeration economies using detailed data on eu transfers we infer the local effects of different transfer types on productivity income and transportation cost based on these estimates and the general equilibrium model we derive the spatial distribution of economic activity and the resulting aggregate welfare effects if i no transfers were paid and taxes set to zero ii transfers were distributed uniformly iii transfers were welfare optimally distributed characterizing the optimal distributions we reveal complementarities between transfer types and between transfers and local endowments

positive feedback in skill aggregation across chinese cities this paper examines whether human capital levels diverged across chinese cities between 1990 and 2010 by employing a series of instruments for the initial human capital share consistent positive

exposure to female colleagues breaks the glass ceiling evidence from a combined vignette and field experiment abstract we study discrimination among recruits in the norwegian armed forces during boot camp in a vignette experiment female candidates are perceived as less suited to be squad leaders than their identical male counterparts adding positive information leads to higher evaluations of the candidates but does not reduce the amount of discrimination however randomized intense collaborative exposure to female colleagues reduces discriminatory attitudes male soldiers who were randomly assigned to share room and work in a squad with female soldiers during the recruit period do not discriminate in the vignette experiment

field experiment tests for discrimination against hispanics in the u s rental housing market this article tests for discrimination against hispanics in the u s rental housing market using e mail correspondence with landlords advertising units online we divide hispanics into two groups those that appear assimilated into american culture and recent immigrants we find little difference in the treatment of assimilated hispanics and whites however hispanics we portray as recent immigrants receive less favorable treatment with margins of net discrimination as large as 6 89 of landlords we also find discrimination varies significantly at the region level and by the ethnic composition of neighborhoods

measuring racial discrimination with fair housing audits caught in the act a survey technique called a fair housing audit provides a direct measure of racial discrimination in housing this paper examines the econometric issues raised by audit data measures the discrimination uncovered by a 1981 boston study and tests hypotheses about the causes of discrimination the estimated level of discrimination is high black housing seekers are told about 30 percent fewer available housing units than are whites the hypothesis tests indicate that the primary cause of this discrimination is that housing agents illegally promote their economic interests by catering to the racial prejudice of their current or potential white customers

the comparative advantage of cities abstract what determines the distributions of skills occupations and industries across cities we develop a theory to jointly address these fundamental questions about the spatial organization of economies our model incorporates a system of cities their internal urban structures and a high dimensional theory of factor driven comparative advantage it predicts that larger cities will be skill abundant and specialize in skill intensive activities according to the monotone likelihood ratio property we test the model using data on 270 us metropolitan areas 3 to 9 educational categories 22 occupations and 19 industries the results provide support for our theory s predictions

the impact of climate change on internal migration in brazil abstract business as usual climate change forecasts point to sharp temperature rises and agriculture yield losses in many regions of brazil we study the impact of these changes on internal migration and population distribution we employ a spatial equilibrium model in which the climate shapes workers locational choices through the usual amenity value channel and the novel indirect channel via agriculture wages our simulations reveal that migration rates are 9 65 higher and that 0 9 million more people migrate inter regionally under future climate conditions furthermore climate change will likely exacerbate the country s regional inequalities as the most developed regions gain population and welfare while the least developed regions lose

tricks with hicks the easi demand system we invent implicit marshallian demands which combine desirable features of hicksian and marshallian demands we propose and estimate the exact affine stone index easi implicit marshallian demand system like the almost ideal demand aid system easi budget shares are linear in parameters given real expenditures however unlike the aid easi demands can have any rank and its engel curves can have any shape over real expenditures easi error terms equal random utility parameters to account for unobserved preference heterogeneity easi demand functions can be estimated using gmm or three stage least squares and like aid an approximate easi model can be estimated by linear regression

disability discrimination in the italian rental housing market a field experiment with blind tenants i test discrimination against blind tenants assisted by guide dogs in the italian rental housing market by using fake application letters i compare three fictitious household tenants married couples married couples where the wife is blind and owns a guide dog and married couples where the normal sighted wife owns a normal dog i find that the households with a blind wife are invited less often to visit apartments they applied for because of the presence of their guide dog using the language of italian and e u laws this behavior is called indirect discrimination against disabled people this result is robust jel r21

strike three discrimination incentives and evaluation major league baseball umpires express their racial ethnic preferences when they evaluate pitchers strikes are called less often if the umpire and pitcher do not match race ethnicity but mainly where there is little scrutiny of umpires pitchers understand the incentives and throw pitches that allow umpires less subjective judgment e g fastballs over home plate when they anticipate bias these direct and indirect effects bias performance measures of minorities downward the results suggest how discrimination alters discriminated groups behavior generally they imply that biases in measured productivity must be accounted for in generating measures of wage discrimination

natural amenities neighbourhood dynamics and persistence in the spatial distribution of income we present theory and evidence highlighting the role of natural amenities in neighbourhood dynamics suburbanization and variation across cities in the persistence of the spatial distribution of income our model generates three predictions that we confirm using a novel database of consistent boundary neighbourhoods in u s metropolitan areas 1880 2010 and spatial data for natural features such as coastlines and hills first persistent natural amenities anchor neighbourhoods to high incomes over time secondly naturally heterogeneous cities exhibit persistent spatial distributions of income thirdly downtown neighbourhoods in coastal cities were less susceptible to the widespread decentralization of income in the mid twentieth century and experienced an increase in income more quickly after 1980

the economic implications of housing supply in this essay we review the basic economics of housing supply and the functioning of us housing markets to better understand the distribution of home prices household wealth and the spatial distribution of people across markets we employ a cost based approach to gauge whether a housing market is delivering appropriately priced units specifically we investigate whether market prices roughly equal the costs of producing the housing unit if so the market is well functioning in the sense that it efficiently delivers housing units at their production cost the gap between price and production cost can be understood as a regulatory tax the available evidence suggests but does not definitively prove that the implicit tax on development created by housing regulations is higher in many areas than any reasonable negative externalities associated with new construction we discuss two main effects of developments in housing prices on patterns of household wealth and on the incentives for relocation to high wage high productivity areas finally we turn to policy implications

electricity planning and implementation in sub saharan africa a systematic review abstract universal electricity access is an important development objective and the focus of a number of key global un initiatives while robust electricity planning is widely believed to be a prerequisite for effective electrification to date no comprehensive overview of electricity planning research has been undertaken on sub saharan africa the world region with the lowest access rates this paper reviews quantitative and qualitative electricity planning and related implementation research considering each of the 49 sub saharan african countries the four regional power pools and the sub continent as a whole applying a broad understanding of electricity planning and a practical limit of 20 reviewed articles per country and region 306 relevant peer reviewed journal articles are included in this review a general classification scheme is introduced that classifies the planning literature along the addressed value chain depth number of different analysed criteria and number of evaluated decision alternatives the literature is found to be strongly clustered in a few countries with less than 5 identified relevant articles in 36 of the 49 countries the total amount of articles per year is clearly increasing over time addressing technology choice operation distribution and implementation analyses although including different high level criteria in analysing electricity systems is common the literature is only starting to use formalised multi criteria decision making mcdm tools the review indicates that 63 of relevant articles favour renewable energy technologies for their given problems frequently mentioned success factors for electrification in sub saharan africa include adequate policy design sufficient finance and favourable political conditions while considerable regional and methodological literature gaps are apparent the literature in this review identifies a rich and fruitful ground for future research to fill these gaps

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

secular labor reallocation and business cycles we study the eect of mean preserving idiosyncratic industry shocks on business cycle outcomes we develop an empirical methodology using a local area s exposure to industry reallocation based on the area s initial industry composition and employment trends in the rest of the country over a full employment cycle using confidential employment data by local area and industry over the period 1980 2014 we find sharp evidence of reallocation contributing to worse employment outcomes during national recessions but not during national expansions we repeat our empirical exercise in a multi area multi sector search and matching model of the labor market the model reproduces the empirical results subject to inclusion of two key empirically plausible frictions imperfect mobility across industries and downward nominal wage rigidity combining the empirical and model results we conclude that reallocation can generate substantial amplification and persistence of business cycles at both the local and the aggregate level

endogenous gentrification and housing price dynamics in this paper we begin by documenting substantial variation in house price growth across neighborhoods within a city during citywide housing price booms we then present a model which links house price movements across neighborhoods within a city and the gentrification of those neighborhoods in response to a citywide housing demand shock a key ingredient in our model is a positive neighborhood externality individuals like to live next to richer neighbors this generates an equilibrium where households segregate based upon their income in response to a citywide demand shock higher income residents will choose to expand their housing by migrating into the poorer neighborhoods that directly abut the initial richer neighborhoods the in migration of the richer residents into these border neighborhoods will bid up prices in those neighborhoods causing the original poorer residents to migrate out we refer to this process as endogenous gentrification using a variety of data sets and using bartik variation across cities to identify city level housing demand shocks we find strong empirical support for the model s predictions

income distribution and housing prices an assignment model approach we present a framework for studying the relation between the distributions of income and house prices that is based on an assignment model where households are heterogeneous by incomes and houses by quality each household owns one house and wishes to live in one house thus everyone is potentially both a buyer and a seller in equilibrium the distribution of prices depends on both distributions in a tractable but nontrivial manner we show how the impact of increased income inequality on house prices depends on the shapes of the distributions and can be inferred from data in our empirical application we find that increased income inequality between 1998 and 2007 had a negative impact on average house prices in 6 us metropolitan areas jel d31 r21

managerial quality team success and individual player performance in major league baseball this paper uses 1969 87 major league baseball data to investigate the impact of managerial quality on team winning and individual player performance managerial quality and player performance are measured as predicted pay based on salary regressions these market based measures permit conclusions about costs and benefits of managerial quality there are two major findings first when player inputs are controlled for higher quality managers lead to higher winning percentages second players tend to play better relative to their prior performance levels the higher the manager s quality these findings suggest that as emphasized by the human resource management literature the quality of management makes an important difference in the performance of organizations

the making of the modern metropolis evidence from london modern metropolitan areas involve large concentrations of economic activity and the transport of millions of people each day between their residence and workplace we use the revolution in transport technology from the invention of steam railways newly constructed spatially disaggregated data for london from 1801 1921 and a quantitative urban model to provide evidence on the role of these commuting flows in supporting such concentrations of economic activity steam railways dramatically reduced travel times and permitted the first large scale separation of workplace and residence we show that our model is able to account for the observed changes in the organization of economic activity both qualitatively and quantitatively in counterfactuals we find that removing the entire railway network reduces the population and the value of land and buildings in greater london by 20 percent or more and brings down commuting into the city of london from more than 370 000 to less than 60 000 workers

labor market effects of september 11th on arab and muslim residents of the united states we investigated whether the september 11 2001 terrorists attacks had any effect on employment earnings and residential mobility of first and second generation arab and muslim men in the united states we find that september 11th did not significantly affect employment and hours of work of arab and muslim men but was associated with a 9 11 percent decline in their real wage and weekly earnings with some evidence that this decline was temporary the adverse earnings effects were strongly linked to hate crime incidence estimates also suggest that the terrorists attacks reduced intrastate migration of arab and muslim men

a field experiment of discrimination in the norwegian housing market gender class and ethnicity we test for gender class and ethnic discrimination in the norwegian rental housing market by using fake application letters females individuals with high job status and ethnic norwegians are more likely to receive positive responses for example being an arabic man and working in a warehouse is associated with a 25 percentage point lower probability of receiving a positive response when showing interest in an apartment as compared to an ethnically norwegian female economist we conclude that gender class and ethnic discrimination do exist in the norwegian housing market and ethnic discrimination seems to be the most prevalent form of discrimination jel r21

arrested development theory and evidence of supply side speculation in the housing market this paper incorporates speculation into the standard supply and demand framework used to analyze housing booms and busts speculation reverses the common intuition that elastic housing supply attenuates housing booms housing market frictions make land a more attractive speculative investment than housing as a result undeveloped land both facilitates construction and intensies

effect of income on trust evidence from the 2009 economic crisis in russia this article draws on a natural experiment to identify the relationship between income and trust we use a unique panel data set on russia where gdp experienced an 8 drop in 2009 the effect of the crisis had been uneven among russian regions because of their differences in industrial structure inherited from the soviet period after instrumenting average regional income by soviet industrial structure we find that 10 decrease in income is associated with a five percentage point decrease in social trust we also find that post crisis economic recovery did not fully restore pre crisis trust level

voting behavior discrimination and the national baseball hall of fame we investigate whether black latin and white major league baseball players receive the same consideration by the baseball writers association of america in voting for membership into the national baseball hall of fame the first stage of heckman s two step procedure indicates that the probability a black player will ever receive at least one vote is significantly lower than that for his white counterpart the second stage suggests that race or ethnicity sometimes matter in determining the number of votes a candidate receives for hall of fame membership jel j7 d72

do landlords discriminate in the rental housing market evidence from an internet field experiment in us cities abstract this paper tests for racial discrimination in the rental housing market using matched pair audits conducted via e mail for rental units advertised on line we reveal home seekers race to landlords by sending e mails from names with a high likelihood of association with either whites or african americans generally discrimination occurs against african american names however when the content of the e mail messages insinuates home seekers with high social class discrimination is non existent racial discrimination is more severe in neighborhoods that are near tipping points in racial composition and for units that are part of a larger building

the visible hand race and online market outcomes we examine the effect of race on market outcomes by selling ipods through local online classified advertisements throughout the us each advertisement features a photograph including a dark or light skinned hand or one with a wrist tattoo black sellers receive fewer and lower offers than white sellers and the correspondence with black sellers indicates lower levels of trust black sellers outcomes are particularly poor in thin markets suggesting that discrimination may not survive competition among buyers and those with the most racial isolation and property crime consistent with channels through which statistical discrimination might operate economic outcomes in the us are highly correlated with race but the causal mechanisms underlying these correlations are not well understood in particular it remains unclear how much of the correlation is due to discrimination and how much is due to other characteristics that are correlated with race such as education there is an extensive literature on the effect of race on market outcomes focusing on both labour and goods including housing markets however discrimination is not a monolithic phenomenon and it is important to investigate its extent and causes in a variety of different contexts across which they may differ our study asks the following question when the typical person engages in a consumer transaction usually as a buyer does he or she try to avoid dealing with minority sellers and does she treat minority sellers differently

the economics of density evidence from the berlin wall this paper develops a quantitative model of internal city structure that features agglomeration and dispersion forces and an arbitrary number of heterogeneous city blocks the model remains tractable and amenable to empirical analysis because of stochastic shocks to commuting decisions which yield a gravity equation for commuting flows to structurally estimate agglomeration and dispersion forces we use data on thousands of city blocks in berlin for 1936 1986 and 2006 and exogenous variation from the city s division and reunification we estimate substantial and highly localized production and residential externalities we show that the model with the estimated agglomeration parameters can account both qualitatively and quantitatively for the observed changes in city structure we show how our quantitative framework can be used to undertake counterfactuals for changes in the organization of economic activity within cities in response for example to changes in the transport network

urban population and amenities the neoclassical model of location we develop a neoclassical general equilibrium model to explain cross metro variation in population and density we provide new methods to estimate traded and non traded productivities and elasticities of housing and land supply using density and land area data from wage and housing cost indices the model explains half of u s density and population variation and finds that quality of life determines location choices more than trade productivity productivity and factor substitution in housing matter most but are weak in nicer areas relaxing land use regulations would increase population in the west raising both quality of life and productivity experienced by residents

should the personal computer be considered a technological revolution evidence from u s metropolitan areas the introduction and diffusion of personal computers are widely viewed as a technological revolution using u s metropolitan area level panel data this paper asks whether links between pc adoption educational attainment and the return to skill conform to a model of technological revolutions in which the speed and extent of adoption are endogenous the model implies that cities will adjust differently to the arrival of a more skill intensive means of production with the returns to skill increasing most where skill is abundant and its return is low we show that the cross city data fit many of the predictions of the model during the period 1980 2000 the pc diffusion era

lowering standards to wed spouse quality marriage and labor market responses to the gender wage gap this paper examines the effect of the female to male wage ratio relative wage on women s spouse quality marriage and labor supply over three decades exploiting task based demand shifts as a

tariffs and subsidies in zimbabwe s reforming electricity industry steering a utility through turbulent times abstract in 1991 the government of zimbabwe adopted a public enterprise reform strategy as part of a world bank driven economic structural adjustment programme esap for the electricity sector the government adopted a two pronged programme of reform a performance improvement programme pip for the national utility the zimbabwe electricity supply authority zesa and a legal and regulatory reform programme for the electricity sector in general ten years later significant success has been achieved in improving the utility s performance in technical operations and customer service however there has been very little progress on the legal and regulatory front this has adversely affected the utility s financial performance as well as frustrating the government s efforts in attracting private sector investment the centrality of the tariff question reflects the importance of the customer or end user to the power sector reform process this article outlines the power sector reform experiences in zimbabwe with special focus on the tariff question the paper suggests from the perspective of a utility executive reasons for the mixed results at zesa and lessons for other countries in the region undertaking similar reforms

are emily and greg more employable than lakisha and jamal a field experiment on labor market discrimination we study race in the labor market by sending fictitious resumes to help wanted ads in boston and chicago newspapers to manipulate perceived race resumes are randomly assigned african american or white sounding names white names receive 50 percent more callbacks for interviews callbacks are also more responsive to resume quality for white names than for african american ones the racial gap is uniform across occupation industry and employer size we also find little evidence that employers are inferring social class from the names differential treatment by race still appears to still be prominent in the u s labor market jel j71 j64

who wins who loses understanding the spatially differentiated effects of the belt and road initiative this paper examines how cities and regions within countries are likely to adjust to trade openness and improved connectivity driven by large transport investments from china s belt and road initiative the paper presents a quantitative economic geography model alongside spatially detailed information on the location of people economic activity and transport costs to international gateways in central asia to identify which places are likely to gain and which places are likely to lose the findings are that urban hubs near border crossings will disproportionately gain while farther out regions with little comparative advantage will be relative losers complementary investments in domestic transport networks and trade facilitation are complementary policies and can help in spatially spreading the benefits however barriers to domestic labor mobility exacerbate spatial inequalities whilst dampening overall welfare

what is in a surname the role of ethnicity in economic decision making this article reports results from two experiments that investigate possible incidence of discrimination against people with foreign backgrounds in sweden in the first experiment participants play

multidimensional platform design successful platforms attract not just many users but also those of the right kind the right kind of user is one who can either be directly monetized or who differentially attracts other valuable users bonacich centrality on the network of user sorting with direct value of monetization captures this feedback loop and thus characterizes the value of user characteristics we use this value to determine optimal steady state platform design and reliable means for platforms to reach such a steady state we apply these results respectively to explain the dynamic growth strategy of social networks and urban development policies of cities

terrorism and attitudes towards minorities the effect of the theo van gogh murder on house prices in amsterdam abstract does fundamentalist islamic terrorism have an effect on the general attitudes towards muslim minorities we use the murder of theo van gogh as an event study to address this question specifically we use the hedonic market model and test for an effect on listed house prices in neighborhoods where more than 25 of the people belong to an ethnic minority from a muslim country type i relative to the other neighborhoods house prices in type i neighborhoods decreased in 10 months by about 3 with a widening gap over time our results are robust to several adjustments including using synthetic control groups finally we find evidence that segregation increased people belonging to the muslim minority were more likely to buy and less likely to sell a house in a type i neighborhood after the murder than before

tipping and the dynamics of segregation schelling dynamic models of segregation journal of mathematical sociology 1 1971 143 186 showed that extreme segregation can arise from social interactions in white preferences once the minority share in a neighborhood exceeds a tipping point all the whites leave we use regression discontinuity methods and census tract data from 1970 through 2000 to test for discontinuities in the dynamics of neighborhood racial composition we find strong evidence that white population flows exhibit tipping like behavior in most cities with a distribution of tipping points ranging from 5 to 20 minority share tipping is prevalent both in the suburbs and near existing minority enclaves in contrast to white population flows there is little evidence of nonlinearities in rents or housing prices around the tipping point tipping points are higher in cities where whites have more tolerant racial attitudes

tarnishing the golden and empire states land use restrictions and the u s economic slowdown abstract this paper studies the impact of state level land use restrictions on u s economic activity focusing on how these restrictions have depressed macroeconomic activity since 2000 we use a variety of state level data sources together with a general equilibrium spatial model of the united states to systematically construct a panel dataset of state level land use restrictions between 1950 and 2014 we show that these restrictions have generally tightened over time particularly in california and new york we use the model to analyze how these restrictions affect economic activity and the allocation of workers and capital across states counterfactual experiments show that deregulating existing urban land from 2014 regulation levels back to 1980 levels would have increased us gdp and productivity roughly to their current trend levels california new york and the mid atlantic region expand the most in these counterfactuals drawing population out of the south and the rustbelt general equilibrium effects particularly the reallocation of capital across states account for much of these gains

will affirmative action policies eliminate negative stereotypes a key question concerning affirmative action is whether the labor market gains it brings to minorities can continue without it becoming a permanent fixture in the labor market the authors argue that this depends on how the policy affects employers beliefs about the productivity of minority workers they study the joint determination of employer beliefs and worker productivity in a model of statistical discrimination in job assignments the authors prove that even when identifiable groups are equally endowed ex ante affirmative action can bring about a situation in which employers correctly perceive the groups to be unequally productive ex post copyright 1993 by american economic association

wages rents and the quality of life this study focuses on the role of wages and rents in allocating workers to locations with various quantities of amenities the theory demonstrates that if the amenity is also productive then the sign of the wage gradient is unclear while the rent gradient is positive the theory is extended to include the housing market and nontraded goods these extensions require little modification of the conclusion the empirical work on wages shows that the regional wage differences can be explained largely by these local attributes with the use of site price data implicit prices are estimated and quality of life rankings for the cities are computed

discrimination in the rental housing market a field experiment on the internet this paper presents a field experiment on discrimination in the housing market using the internet as a research platform the procedure involved our creating three fictitious persons with distinct

measuring human capital divergence in a growing economy abstract the stylized fact that the fraction of workers who are college graduates appears to increase more in us cities where the initial share is larger has attracted significant attention furthermore more educated cities appear to grow faster these two trends could portend the divergence of cities by skill with low skill workers segregated in slow growing or declining cities this paper compares measures of skill divergence and finds that relative measures which have the property of scale invariance show no divergence for the period from 1970 to 2010 in addition the relation between skill intensity and city growth appears to be concave so that differences in the growth rate of skill intensity across cities may diminish over time as the average college share of the country rises

firming up inequality earnings inequality in the united states has increased rapidly over the last three decades but little is known about the role of firms in this trend for example how much of the rise in earnings inequality can be attributed to rising dispersion between firms in the average wages they pay and how much is due to rising wage dispersion among workers within firms similarly how did rising inequality affect the wage earnings of different types of workers working for the same employer men vs women young vs old new hires vs senior employees and so on to address questions like these we begin by constructing a matched employer employee data set for the united states using administrative records covering all u s firms between 1978 to 2012 we show that virtually all of the rise in earnings dispersion between workers is accounted for by increasing dispersion in average wages paid by the employers of these individuals in contrast pay differences within employers have remained virtually unchanged a finding that is robust across industries geographical regions and firm size groups furthermore the wage gap between the most highly paid employees within these firms ceos and high level executives and the average employee has increased only by a small amount refuting oft made claims that such widening gaps account for a large fraction of rising inequality in the population

trickle down consumption abstract we document that nonrich households consume a larger share of their current income when exposed to higher top income and consumption levels permanent income wealth effects and upward local price pressures cannot provide the sole explanation for this finding instead we show that the budget shares that nonrich households allocate to more visible goods and services rise with top income levels consistent with status maintaining explanations for our primary finding nonrich households might have saved up to 3 more annually by the mid 2000s had incomes at the top grown at the same rate as median income since the early 1980s

power couples changes in the locational choice of the college educated 1940 1990 college educated couples are increasingly located in large metropolitan areas these areas were home to 32 percent of all college educated couples in 1940 39 percent in 1970 and 50 percent in 1990 we investigate whether this trend can be explained by increasing urbanization of the college educated or the growth of dual career households and the resulting severity of the colocation problem we argue that the latter explanation is the primary one smaller cities may therefore experience reduced inflows of human capital relative to the past and thus become poorer

amenities and regional differences in returns to worker characteristics average wages in regions in the united states vary considerably in trying to explain these differences in the average wage across regions a number of studies have found that differences in the returns to characteristics of workers such as years of schooling are as important as differences in the skill composition of the labor force 4 6 10 141 these differences in returns are generally interpreted as reflecting regional differences in demand for worker characteristics coupled with barriers to factor mobility this interpretation is based on the argument that the presence of at least one perfectly mobile factor with perfect information will cause spatial convergence in characteristic prices as that particular factor exploits any spatial price differential 4 p 2161 this paper suggests an alternative to this demand based explanation for regional differences in the structure of wages one based on regional differences in the supply of worker characteristics this explanation does not rely on impediments to the movement of workers or firms and is consistent with an equilibrium view of wages in which regional wage differentials are viewed as compensation for local amenities the theoretical model presented in the following section assumes capital and labor are perfectly mobile with perfect information implying that in equilibrium the utility of workers with similar characteristics is the same in all locations this convergence of utility however does not necessarily imply convergence of characteristic prices equilibrium differences in the returns to a specific worker characteristic can exist if worker characteristics affect an individual s valuation of an area s amenities relative to the individual s demand for land

do field experiments on labor and housing markets overstate discrimination a re examination of the evidence since 2000 more than 80 field experiments across 23 countries consider the traditional dimensions of discrimination in labor and housing markets such as discrimination based on race these studies

the influence of social forces evidence from the behavior of football referees analyzing the neutrality of referees during 12 german premier league 1 bundesliga soccer seasons this paper documents evidence that social forces influence agents decisions referees who are appointed to be impartial tend to favor the home team by systematically awarding more stoppage time in close matches in which the home team is behind they also favor the home team in decisions to award goals and penalty kicks crowd composition affects the size and the direction of the bias and the crowd s proximity to the field is related to the quality of refereeing jel j00

why has regional income convergence in the u s declined the past thirty years have seen a dramatic decrease in the rate of income convergence across states and in population flows to wealthy places these changes coincide with 1 an increase in housing prices in productive areas 2 a divergence in the skill specific real returns to living in productive places 3 a redirection of low skilled migration and 4 diminished human capital convergence due to migration we develop a model where falling housing supply elasticity and endogenous labor mobility generates these patterns using a new panel measure of housing supply regulations we demonstrate the importance of this channel income convergence continues in less regulated places while it has stopped in more regulated places

discrimination in a deprived neighbourhood an artefactual field experiment abstract we present a field experiment designed to examine the discriminatory motives of an understudied demographic the poorest people in england subjects are first asked to divide 10 between two strangers and then play a 10 dictator game with another stranger we subtly vary the ethnicity of the receivers by providing subjects with surnames randomly drawn from the electoral register including treatments that allow us to parse behaviour into either in group favouritism or out group negativity an important behavioural distinction that is typically overlooked in the discrimination literature our results suggest that the observed discriminatory attitudes are the result of out group negativity rather than in group favouritism we advance the literature on discrimination through the estimation of a structural model of group contingent social preferences which we exploit to perform counterfactual simulations our results provide insights into the behaviour of this unique demographic and provide a rationale for why they may support discriminatory policies in their voting behaviour

can discrimination in the housing market be reduced by increasing the information about the applicants we investigate how increasing the information about applicants affects discrimination in the rental housing market we let four fictitious applicants two with typical arab muslim names and two with typical swedish names use application letters containing different amounts of information to apply for apartments over the internet in sweden the arab muslim applicants received fewer responses from the landlords than did the swedish applicants all of the applicants gained by providing more information about themselves but the amount of discrimination against the arab muslim applicants remained unchanged indicating that increasing the amount of information about the applicants will not reduce discrimination

potential for solar water heating in zimbabwe this paper discusses the economic social and environmental benefits from using solar water heating swh in zimbabwe by comparing different water heating technology usage in three sectors over a 25 year period the potential of swh is demonstrated in alleviating energy and economic problems that energy importing countries like zimbabwe are facing swh would reduce coincident electricity winter peak demand by 13 and reduce final energy demand by 27 assuming a 50 penetration rate of swh potential demand up to 250 million can be saved and co2 emissions can be reduced by 29 over the 25 year period benefits are also present at individual consumer level for the electricity utility as well as for society at large in the case of zimbabwe policy strategies that can support renewable energy technologies are already in current government policy but this political will need to be translated into enhanced practical activities a multi stakeholder approach appears to be the best approach to promoting widespread dissemination of swh technologies

field experiments of discrimination in the market place controlled experiments using matched pairs of bogus transactors to test for discrimination in the marketplace have been conducted for over 30 years and have extended across 10 countries significant persistent and pervasive levels of discrimination have been found against non whites and women in labour housing and product markets rates of employment discrimination against non whites in excess of 25 have been measured in australia europe and north america a small number of experiments have also investigated employment discrimination against the disabled in britain and the netherlands and against older applicants in the united states

racial profiling fairness and effectiveness of policing citizens of two groups may engage in crime depending on their legal earning opportunities and on the probability of being audited police audit citizens police behavior is fair if both groups are policed with the same intensity we provide exact conditions under which forcing the police to behave more fairly reduces the total amount of crime these conditions are expressed as constraints on the quantile quantile plot of the distributions of legal earning opportunities in the two groups we also investigate the definition of fairness when the cost of being searched reflects the stigma of being singled out by police

the determinants and welfare implications of us workers diverging location choices by skill 1980 2000 abstract from 1980 to 2000 the rise in the us college high school graduate wage gap coincided with increased geographic sorting as college graduates concentrated in high wage high rent cities this paper estimates a structural spatial equilibrium model to determine causes and welfare consequences of this increased skill sorting while local labor demand changes fundamentally caused the increased skill sorting it was further fueled by endogenous increases in amenities within higher skill cities changes in cities wages rents and endogenous amenities increased inequality between high school and college graduates by more than suggested by the increase in the college wage gap alone jel d31 i26 j24 j31 j61 r23

wages rents and amenities differences among workers and regions what explains persistent regional earnings differences this paper argues that regional differences in amenities can account for the wage differences in contrast cost of living variations do not account for wage differences but actually exacerbate them this conclusion results from a model in which variations in rents and wages are equalizing differences for amenity differences empirical results are consistent with the model

shift share designs theory and inference we study inference in shift share regression designs such as when a regional outcome is regressed on a weighted average of sectoral shocks using regional sector shares as weights we conduct a placebo exercise in which we estimate the effect of a shift share regressor constructed with randomly generated sectoral shocks on actual labor market outcomes across u s commuting zones tests based on commonly used standard errors with 5 nominal significance level reject the null of no effect in up to 55 of the placebo samples we use a stylized economic model to show that this overrejection problem arises because regression residuals are correlated across regions with similar sectoral shares independent of their geographic location we derive novel inference methods that are valid under arbitrary cross regional correlation in the regression residuals we show using popular applications of shift share designs that our methods may lead to substantially wider confidence intervals in practice

what is discrimination gender in the american economic association 1935 2004 we illustrate problems of measuring discrimination using elections to aea offices with a new econometric technique we find female candidates have a much better than random chance of victory this advantage is either reverse discrimination or reflects beliefs that women are more productive the former interpretation could be explained by an unchanging median voter whose preferences were not satisfied by suppliers of candidates but there was a structural change in voting behavior in the mid 1970s the results suggest it is generally impossible to claim differences in rewards for different groups measure the extent of discrimination or even its direction jel a11 d72 j16

what is different about urbanization in rich and poor countries cities in brazil china india and the united states abstract are the well known facts about urbanization in the united states also true for the developing world we compare american metropolitan areas with analogous geographic units in brazil china and india both gibrat s law and zipf s law seem to hold as well in brazil as in the u s but china and india look quite different in brazil and china the implications of the spatial equilibrium hypothesis the central organizing idea of urban economics are not rejected the india data however repeatedly rejects tests inspired by the spatial equilibrium assumption one hypothesis is that spatial equilibrium only emerges with economic development as markets replace social relationships and as human capital spreads more widely in all four countries there is strong evidence of agglomeration economies and human capital externalities the correlation between density and earnings is stronger in both china and india than in the u s strongest in china in india the gap between urban and rural wages is huge but the correlation between city size and earnings is more modest the cross sectional relationship between area level skills and both earnings and area level growth are also stronger in the developing world than in the u s the forces that drive urban success seem similar in the rich and poor world even if limited migration and difficult housing markets make it harder for a spatial equilibrium to develop

the wider impacts of high technology employment evidence from u s cities abstract innovative high technology industries are commonly described as drivers of regional development tech workers earn high wages but they are also said to generate knock on effects throughout the local economies that host them spurring growth in jobs and wages in nontradable activities at the same time in iconic high tech agglomerations like the san francisco bay area the home of silicon valley the success of the tech industry creates tensions in part as living costs rise beyond the reach of many non tech workers across a large sample of u s cities this paper explores these issues systematically combining annual data on wages employment and prices from the quarterly census of employment and wages the department of housing and urban development and the consumer price index it estimates how growth in tradable tech employment affects the real living cost deflated wages of local workers in nontradable sectors results indicate that high technology employment has significant positive but modest effects on the real wages of workers in nontradable sectors these effects appear to be spread consistently across different kinds of nontradable activities in terms of substantive wider impacts tech appears benign though fairly ineffectual

racial discrimination among nba referees the nba provides an intriguing place to assess discrimination referees and players are involved in repeated interactions in a high pressure setting with referees making split second decisions that might allow implicit racial biases to become evident we find that more personal fouls are awarded against players when they are officiated by an opposite race officiating crew than when they are officiated by an own race refereeing crew these biases are sufficiently large so that they affect the outcome of an appreciable number of games our results do not distinguish whether the bias stems from the actions of white or black referees

identifying human capital externalities theory with applications the identification of aggregate human capital externalities is still not fully understood the existing mincerian approach confounds positive externalities with wage changes due to a downward sloping demand curve for human capital as a result the mincerian approach yields positive externalities even when wages equal marginal social products we propose an approach that identifies human capital externalities whether or not aggregate demand for human capital slopes downward another advantage of our approach is that it does not require estimates of the individual return to human capital applications to u s cities and states between 1970 and 1990 yield no evidence of significant average schooling externalities copyright 2006 wiley blackwell

housing urban growth and inequalities the limits to deregulation and upzoning in reducing economic and spatial inequality urban economics and branches of mainstream economics what we call the housing as opportunity school of thought have been arguing that shortages of affordable housing in dense agglomerations r

land use worker heterogeneity and welfare benefits of public goods we show that investments in public goods change the optimal land use in their vicinity leading to additional welfare benefits this occurs through two sorting mechanisms first availability of public goods leads to higher population densities second population groups sort according to their preferences for public goods we develop a structural spatial general equilibrium model that accounts for these effects the model is estimated using data on transport infrastructure commuting behaviour land use and land rents for some 3000 zip codes in the netherlands and for three levels of education welfare benefits of investments in public transport infrastructure are shown to differ sharply by workers educational attainment welfare gains from changes in land use account for up to 30 of the total benefits of a transport investment

human capital divergence and the size distribution of cities is gibrat s law obsolete this article studies how the changing geographic distribution of skilled workers in the us affects theoretical models that use gibrat s law to explain the size distribution of cities in the empiri

a field study of rental market discrimination across origins in france abstract discrimination against particular groups in the housing market increases search costs and limits optimal matching thus resulting in economic and social inefficiencies this paper tests for the existence of discrimination in the french rental market against individuals with names which signal their connection to five immigrant groups northern africa sub saharan africa turkey poland portugal spain by implementing an online field study using one of france s largest online advertisements website the results show that applicants with foreign sounding names coming from northern africa sub saharan africa and turkey are 16 to 22 percentage points less likely to receive a response than applicants with french names or names associated with poland portugal or spain in addition when applicants with foreign sounding names from any origin receive a response it is significantly more likely to be negative or include a request for more information than responses to emails including french sounding names finally we find some geographic differences in response rate differentials that are correlated with differences in the local income and share of immigrants this provides evidence that landlords use names as a proxy for economic and other sociodemographic characteristics

least cost network evaluation of centralized and decentralized contributions to global electrification abstract the choice between centralized and decentralized electricity generation is examined for 150 countries as a function of population distribution electricity consumption transmission cost and the cost difference between decentralized and centralized electricity generation a network algorithm is developed to find the shortest centralized transmission network that spans a given fraction of the population in a country the least cost combination of centralized and decentralized electricity that serves the country is determined case studies of botswana uganda and bangladesh illustrate situations that are more and less suited for decentralized electrification specific maps for centralized and decentralized generation are presented to show how the least cost option varies with the relative costs of centralized and decentralized generation and transmission cost centralized and decentralized fractions are calculated for 150 countries for most of the world s population centralized electricity is the least cost option for a number of countries particularly in africa substantial populations and regions may be most cost effectively served by decentralized electricity

spatial equilibrium with unemployment and wage bargaining theory and estimation abstract in this paper we present a spatial equilibrium model where search frictions hinder the immediate reallocation of workers both within and across local labor markets because of the frictions firms and workers find themselves in bilateral monopoly positions when determining wages although workers are not at each instant perfectly mobile across cities in the baseline model we assume that workers flows are sufficient to equate expected utility across markets we use the model to explore the joint determination of wages unemployment house prices and city size or migration a key role of the model is to clarify conditions under which this type of spatial equilibrium setup can be estimated we then use u s data over the period 1970 2007 to explore the fit and quantitative properties of the model our main goal is to highlight forces that influence spatial equilibria at 10 year intervals

immigration and inequality immigration is often viewed as a proximate cause of the rising wage gap between highand low skilled workers nevertheless there is controversy over the appropriate theoretical and empirical framework for measuring the presumed effect and over the precise magnitudes involved this paper offers an overview and synthesis of existing knowledge on the relationship between immigration and inequality focusing on evidence from cross city comparisons in the u s while some researchers have claimed that a cross city research design is inherently flawed i argue that the evidence from cross city comparisons is remarkably consistent with recent findings based on aggregate time series data in particular cross city and aggregate time series comparisons provide support for three key conclusions 1 workers with below high school education are perfect substitutes for those with a high school education 2 high school equivalent and college equivalent workers are imperfect substitutes with an elasticity of substitution on the order of 2 3 within education groups immigrants and natives are imperfect substitutes together these results imply that the average impacts of recent immigrant inflows on the relative wages of u s natives are small the effects on overall wage inequality including natives and immigrants are larger reflecting the concentration of immigrants in the tails of the skill distribution and higher residual inequality among immigrants than natives even so immigration accounts for a small share 5 of the increase in u s wage inequality between 1980 and 2000

history and the sizes of cities abstract we contrast evidence of urban path dependence with efforts to analyze calibrated models of city sizes recent evidence of persistent city sizes following the obsolescence of historical adv

attention discrimination theory and field experiments with monitoring information acquisition we link two important ideas attention is scarce and lack of information about an individual drives discrimination in selection decisions our model of allocation of costly attention implies that applicants from negatively stereotyped groups face attention discrimination less attention in highly selective cherry picking markets where more attention helps applicants and more attention in lemon dropping markets where it harms them to test the prediction we integrate tools to monitor information acquisition into correspondence field experiments in both countries we study we find that unfavorable signals minority names or unemployment systematically reduce employers efforts to inspect resumes also consistent with the model in the rental housing market which is much less selective than labor markets we find landlords acquire more information about minority relative to majority applicants we discuss implications of endogenous attention for magnitude and persistence of discrimination in selection decisions returns to human capital and potentially for policy