unbalanced sex ratios in germany caused by world war ii and their effect on fertility a life cycle perspective this paper analyzes the effects of permanently unbalanced sex ratios in germany caused by world war ii on fertility outcomes over the life cycle using census records linked with individual biography data our analysis confirms the commonly found short term pattern of decreased fertility rates due to a stark imbalance of the sex ratio yet the long term effects of such an imbalance crucially depend on when in the life cycle fertility is evaluated we find that female cohorts with low sex ratios have fewer children at younger ages and a larger fraction remains childless while childlessness remains higher throughout their life cycle mothers from affected cohorts catch up and even overcompensate at later ages with respect to the number of children our preferred reading of this result is that with low sex ratios women select themselves into late motherhood according to their fertility preferences this interpretation is consistent with the finding that women from affected cohorts expand their childbearing period and accept lower quality matches in the marriage market our findings have important implications for understanding the long term consequences of large population shocks

economy environment interactions in the long run a neo austrian approach abstract this paper describes a neo austrian approach to the long run interactions between invention innovation and technical progress on the one hand and resource use and pollution on the other this approach is used to construct a formal model which simulates output capital accumulation pollution emission pollution abatement etc for a simple model economy we begin by reviewing the role and conceptualisation of time in economic modelling we then move on to outline neo austrian capital theory as an alternative to the conventional approach we note the implications of the neo austrian approach for modelling resource use and pollution and a simulation model is constructed embodying the neo austrian approach to the time structure of production the two possible ways the model can be interpreted are then explored results from the simulation model are presented and assessed finally plans for future work with this approach are described

a panel analysis of job changes and unemployment abstract this paper tests for state dependence in histories of unemployment and job mobility from the first six waves of the german socio economic panel soep transitions between states of employment and unemployment are modelled as outcomes of binomial probit processes which are first and higher order markov the use of simulation estimation allows quite general intertemporal covariance structures in order to capture individual heterogeneity it is investigated how differences in human capital and other personal characteristics and macro or industry determinants such as regional unemployment growth and immigration pressure affect labour mobility

are ghettos good or bad spatial separation of racial and ethnic groups may theoretically have positive or negative effects on the economic performance of those groups we examine the effects of segregation on outcomes for blacks in schooling employment and single parenthood we find that blacks in more segregated areas have significantly worse outcomes than blacks in less segregated areas we control for the endogeneity of location choice using instruments based on political factors topographical features and residence before adulthood a one standard deviation decrease in segregation would eliminate one third of the black white differences in most of our outcomes

natural resource rents economic dynamics and structural change a capital theoretic approach abstract this paper concerns the effects of natural resource rents on the dynamics and structural change of an economy which is accumulating capital the concept of rent is developed and the determinants of natural resource rents in the real world are discussed to examine the long run effects of rents on the price system and economic structural change a neo austrian capital theoretic model is developed this is presented in input output form and the corresponding prices for the model are derived so that a consistent set of national accounts for the model can be found natural resource use is introduced into the model with natural resource rents forming a further element of value added the model is then further generalised with the dynamics of capital accumulation being determined through a savings function which itself varies with the rate of return on capital this model is used to simulate the effect on economic dynamics and structural change of two natural resource rent profiles both of which follow the hotelling rule the effects of these two cases on the model are examined through the corresponding sets of national accounts

the economic integration of forced migrants evidence for post war germany the flight and expulsion of germans from eastern europe after world war ii constitutes one of the largest forced population movements in history we analyse the economic integration of these migrants and their offspring in west germany a quarter century after displacement first generation migrants still tend to fare worse economically displaced agricultural workers however exhibit higher incomes than comparable natives as displacement caused large scale transitions out of low paid agriculture differences in economic outcomes of second generation migrants resemble those of the first generation

immigration and structural change evidence from post war germany does immigration accelerate sectoral change towards high productivity sectors this paper uses the mass displacement of ethnic germans from eastern europe to west germany after world war ii as a natural experiment to study this question a simple two sector model of the economy in which moving costs prevent the marginal product of labor to be equalized across sectors predicts that immigration boosts output per worker by expanding the high productivity sector but decreases output per worker within a sector using german district level data from before and after the war we find strong empirical support for these predictions

the labor market impact of immigration a quasi experiment exploiting immigrant location rules in germany with the fall of the berlin wall ethnic germans living in eastern europe and the former soviet union were given the opportunity to migrate to germany within 15 years 2 8 million individuals had done so upon arrival these immigrants were exogenously allocated to different regions to ensure an even distribution across the country their inflow can therefore be seen as a quasi experiment of immigration i analyze the effect of these inflows on skill specific employment rates and wages the results indicate a displacement effect of 3 1 unemployed workers for every 10 immigrants that find a job but no effect on relative wages

street crime and street culture a model shows how reputation concerns can support widespread street crime a street culture where the direct incentives for such behavior are weak there are social benefits to street reputations but those benefits are dominated when reputation concerns draw into crime those who obtain no direct gain from it the model matches facts about violent crime that a standard model cannot easily explain including low monetary returns disproportionate victimization of the young and poor and high variance in rates across small distances the model generates novel implications for policy and social science including a negative effect of social capital

the effects of immigration in frictional labor markets theory and empirical evidence from eu countries immigrants are new comers in a labor market as a consequence they lack of social networks and other country specific and not directly productive valuable assets affecting their relative bargaining position against employers we introduce this simple observation into a matching model of the labor market and show that immigrants increase employment prospects of competing natives to test the predictions of our model we exploit yearly vari ations between 1998 and 2004 in the share of immigrants within occupations of 12 european countries we identify the causal impact of immigrants on natives employment rate using an instrumental variable strategy based on historical settlement patterns across host countries and occupations by origin countries we find that natives employment rate increases in oc cupations and sectors receiving more immigrants moreover we highlight the heterogeneity of this impact across groups of immigrants and host countries along dimensions that affect immigrants natives relative reservation wages

the economics of forced migration abstract this article reviews the economics literature on the impacts of forced migration the literature is divided into two parts impacts on forced migrants and impacts on host communities studies exploring the impact of forced migration due to wwii suggest that the long term impact is often positive the literature for developing countries suggests that there are serious consequences of forced migration for those forced to migrate these consequences range from worse labour market outcomes to less consumption smoothing the impact on host communities seems to be mixed and there are winners and losers the article provides suggestions for future research

the impact of language ability on employment and earnings of britain s ethnic communities the fourth national survey of ethnic minorities contains useful information about the language ability of britain s non whites as well as a wealth of comparative information for whites the paper attempts to establish how much of the lower unemployment and higher earnings enjoyed by whites is the result of a comparative advantage in language language is shown to contribute to a part of the non white disadvantage but after language effects are removed non whites males still have higher unemployment rates and lower earnings language disadvantage among non white females leads to higher inactivity rates rather than more unemployment

capital resource substitution and the discount effect in depletable resources it is a central proposition of the economics of natural resources that an increase in the discount rate will cause an increase in the rate of extraction for depletable minerals this traditional discount effect derives from treating the resource stock as a kind of capital which will be left in unprocessed form only when the opportunity cost of so doing is low the hotelling rule 10 this relationship is a cornerstone of the contention by some resource economists that a competitive resource industry extracts too fast for it is held that risk raises the discount rate used by resource firms above the optimal rate for society the high real discount rates of recent years in this view were also seen as a major contributor to the depressed mineral markets of the early 1980s mineral extraction and processing is highly capital intensive however and the opportunity cost of capital will be increased by a higher discount rate when this disinvestment effect is included gordon 5 in fact showed that the overall discount effect is ambiguous neher 13 and farzin 2 employing specialized assumptions concerning the extractive technology subsequently showed the sign of the effect to depend on the relative present values of capital and resource costs in overall mineral extraction and processing the purpose of this paper is to extend neher and farzin s result by analyzing the discount effect in terms of general resource industry characteristics such as the elasticity of demand and of substitution as well as the shares of capital and unprocessed resources in overall cost we then attempt to apply our results in the third section of the paper using parameters estimated by others for a number of resource industries given these parameters it appears that the usual effects of discount changes do apply with respect to the value and price of the unprocessed resource an increase in the discount rate increasing the demand and lowering the value of the raw mineral but this is not the case with respect to the processed resource because of relatively high capital intensity over half of the mineral industries surveyed appear to behave as non resource industries in that they can be expected to reduce overall processed mineral output in response to a discount rate increase 1 neher following gordon employed a model in which mineral output is identical with the raw resource input and in which capital cost is a fixed proportion of the total cost of extracting the resource this implies the average cost of extraction is simply the sum of average capital and resource costs unlike in the model to follow and could realistically apply only to the very first stage of mineral processing

mixed markets and crime abstract this paper specifies and solves a two stage game theoretic model of a mixed market for crime control in the first stage of the model private targets and the government choose levels of policing in the second stage criminals choose targets and the severity of the crimes that they commit the paper s key results are as follows first private policing can both divert crime to targets that lack private protection and also increase the severity of the crime that these less protected targets suffer second an increase in private policing reduces the aggregate expenditure on traditional policing this is an instance of a political incentive externality where private policing affects the objective function of the government specifically it reduces the level of traditional policing that is consistent with the samuelson condition for efficient provision of a public good third the substitution of private for public policing carries with it a change in the technology of policing in effect private policing leads to a shift from enforcement and punishment towards monitoring and target hardening this in turn may lead to an increase in the severity of crime fourth the mixed policing equilibrium is inefficient and in some situations mixing may reduce the utility of all targets

born in britain how are native ethnic minorities faring in the british labour market in spite of the 40 years that have passed since legislation was first introduced to combat racial discrimination british born ethnic minorities fare little better than their immigrant parents in the uk labour market

skill transferability migration and development evidence from population resettlement in indonesia we use a natural experiment in indonesia to provide causal evidence on the role of location specific human capital and skill transferability in shaping the spatial distribution of productivity from 1979 1988 the transmigration program relocated two million migrants from rural java and bali to new rural settlements in the outer islands villages assigned migrants from regions with more similar agroclimatic endowments exhibit higher rice productivity and nighttime light intensity one to two decades later we find some evidence of migrants adaptation to agroclimatic change overall our results suggest that regional productivity differences may overstate the potential gains from migration

immigration and electoral support for the far left and the far right immigration has become one of the most divisive political issues in the united states the united kingdom france and several other western countries we estimate the impact of immigration on voting for far left and far right parties in france using panel data on presidential elections from 1988 to 2017 to derive causal estimates we instrument more recent immigration flows by past settlement patterns in 1968 we find that immigration increases support for far right candidates and has no robust effect on far left voting the increased support for far right candidates is driven by low educated immigrants from non western countries

war and institutions new evidence from sierra leone scholars of economic development have argued that war can have adverse impacts on later economic performance war destroys physical capital and infrastructure and disrupts human capital accumulation and it may also damage institutions by creating political instability destroying the social fabric and endangering civil liberties world bank 2003 understanding war s impact on development is particularly important for sub saharan africa where two thirds of all nations suffered from armed conflict during the 1980s and 1990s the proliferation of armed conflict in the world s poorest region begs the question of what role conflict may be playing in africa s disappointing economic performance yet the net long run effects of war are ambiguous from the point of view of economic theory to the extent that war impacts are limited to the destruction of capital the neoclassical model predicts rapid economic growth postwar converging back to steady state growth several recent papers that study war impacts including in japan donald r davis and david e weinstein 2002 and vietnam miguel and gerard roland 2005 find few persistent local impacts of u s bombing with heavily bombed areas experiencing rapid recovery to prewar population and economic trends this is consistent with the neoclassical model if war s main consequence is to destroy capital war could also affect long run growth either positively or negatively by modifying the scale parameter in the neoclassical growth model for example while the world bank 2003 argues that war has adverse institutional consequences charles h tilly shows how war promoted state formation and nation building in europe historically ultimately strengthening institutions tilly 1975 we study the aftermath of the recent civil conflict in sierra leone one notable aspect of this project is the extensive household data for sierra leone on conflict experiences and on local institutions our results are complementary to the other recent studies mentioned above none of which examines institutional impacts

agricultural outputs and conflict displacement evidence from a policy intervention in rwanda abstract in 1997 rwanda introduced a resettlement policy for refugees displaced during previous conflicts i exploit geographic variation in the speed of implementation of this policy to investigate the impact of conflict induced displacement and the resettlement policy on household agricultural output and on skill spillover mechanisms between returnees and stayers i find that returns to on farm labor are higher for returnees relative to stayers although the evidence suggests that the policy contributed little additional effect to this differential more speculatively these differentials suggest that upon return from conflict induced exile returnees are more motivated to increase their economic performance

differences in work conditions between natives and immigrants preferences vs outside employment opportunities abstract immigrants are disproportionately employed in agriculture and construction sectors with relatively high injury rates what pushes immigrants to accept riskier and more strenuous work conditions we propose a circular model and show that differences in average work conditions borne by natives and immigrants are driven by both preferences and unearned income using french data we find that in line with the model s predictions i rigid wages are associated with a larger immigrant native gap in work conditions ii high unearned income individuals benefit on average from better work conditions iii for immigrants and natives with high unearned income differences in demographic characteristics explain part of the immigrant native gap in work conditions in contrast the gap largely persists among low unearned income people even once we have imposed identical demographic composition among them this suggests that there must be other factors that influence preferences over work conditions and that are missing in our empirical analysis

a neo austrian five process model with resource extraction and pollution abatement abstract this paper describes a neo austrian approach to analyse long run economy environment interactions the modelling framework incorporates resource use and pollution as integral components of production processes we start our study by reviewing the neo austrian capital theoretic approach a neo austrian model is developed and presented in input output form and the corresponding accounting prices are derived by using this representation an intertemporal simulation approach is embodied by establishing the optimization of an intertemporal social welfare function results from the optimization approach are discussed and also discount rate variations are assessed in terms of their effects on the model economy

breaking the law when others do a model of law enforcement with neighborhood externalities abstract a standard assumption in the economics of law enforcement is that the probability of a violator being punished depends only on the resources devoted to enforcement however it is often true that the productivity of enforcement resources decreases with the number of violators in this paper an individual who violates the law provides a positive externality for other offenders because the probability of being punished decreases with the number of individuals violating the law this externality explains the existence of correlation between individuals decisions to break a law the model evaluates the implications when determining the socially optimal enforcement expenditure focusing specifically on the case of neighborhood crime in particular using a parametrized functional form i show that neighborhood externalities will enhance or impede enforcement depending on the crime rate

unequal pay or unequal employment a cross country analysis of gender gaps we analyze gender wage gaps correcting for sample selection induced by nonemployment we recover wages for the nonemployed using alternative imputation techniques simply requiring assumptions on the position of imputed wages with respect to the median we obtain higher median wage gaps on imputed rather than actual wage distributions for several oecd countries however this difference is small in the united states the united kingdom and most central and northern eu countries and becomes sizable in southern eu countries where gender employment gaps are high selection correction explains nearly half of the observed negative correlation between wage and employment gaps

emigration and wages the eu enlargement experiment abstract the enlargement of the european union provides a unique opportunity to study the impact of the lifting of migration restrictions on the migrant sending countries with eu enlargement in 2004 1 2 million workers from eastern europe emigrated to the uk and ireland i use this emigration wave to show that emigration significantly changed the wage distribution in the sending country in particular between young and old workers using a novel dataset from lithuania the uk and ireland for the calibration of a structural model of labor demand i find that over the period of five years emigration increased the wages of young workers by 6 while it had no effect on the wages of old workers contrary to the immigration literature there is no significant effect of emigration on the wage distribution between high skilled and low skilled workers

does competition among public schools benefit students and taxpayers tiebout choice among districts is the most powerful market force in american public education naive estimates of its effects are biased by endogenous district formation i derive instruments from the natural boundaries in a metropolitan area my results suggest that metropolitan areas with greater tiebout choice have more productive public schools and less private schooling little of the effect of tiebout choice works through its effect on household sorting this finding may be explained by another finding students are equally segregated by school in metropolitan areas with greater and lesser degrees of tiebout choice among districts

crime and social interactions the high variance of crime rates across time and space is one of the oldest puzzles in the social sciences this variance appears too high to be explained by changes in the exogenous costs and benefits of crime we present a model where social interactions create enough covariance across individuals to explain the high cross city variance of crime rates this model provides an index of social interactions which suggests that the amount of social interactions is highest in petty crimes moderate in more serious crimes and almost negligible in murder and rape

return migration investment in children and intergenerational mobility comparing sons of foreign and native born fathers this paper studies parental investment in education and intergenerational earnings mobility for father son pairs with native and foreign born fathers we illustrate within a simple model that for immigrants investment in their children is related to their return migration probability in our empirical analysis we include a measure for return probabilities based on repeated information about migrants return intentions our results suggest that educational investments in the son are positively associated with a higher probability of a permanent migration of the father we also find that the son s permanent wages are positively associated with the probability of the father s permanent migration

the endogeneity between language and earnings international analyses this study is concerned with the determinants of dominant language fluency its effects on earnings and its endogeneity with earnings among immigrants dominant language fluency is hypothesized to

modeling technology adoption in developing countries an analysis of technology adoption decisions by poor farmers is provided some possible empirical models for studying technology adoption are reviewed the issue of theoretical consistency is dealt with in terms of the costs of such consistency measured in data needs and model complexity and the benefits measured in terms of understanding the micro economic foundations of adoption

costs and benefits of land fragmentation evidence from rwanda this paper disentangles different aspects of land fragmentation and its impact on the efficiency of resource use the paper uses information on the incidence of crop shocks to assess whether fragmentation provides benefits in reducing risk and parcel coordinates and terrain adjusted travel times between parcels to more precisely account for the associated costs in 2010 11 data from rwanda while fragmentation increases the time required to move between a household s parcels this does not appear to affect overall technical efficiency on the farm fragmentation rather reduces the incidence of crop shocks and increases yields and productive efficiency in rwanda s setting interventions to reduce fragmentation may therefore be ineffective or counterproductive

living in limbo economic and social costs for refugees our paper tests the hypothesis that living in limbo could have negative consequences for the socio economic integration of refugees we define limbo as a protracted period when asylum seekers are waiting for the decision concerning their permanent refugee status relying on the french survey of migrants france s longitudinal survey of migrants elipa we measure integration by labour market participation fluency in french finding new french friends and studying to account for the endogeneity of limbo we instrument it with the administrative backlog we find that living longer in limbo during the asylum seeking period slows down future integration of refugees but results differ with respect to gender and educational attainment while having lived longer in limbo slows down most aspects of socio economic integration for refugees with no degree or a high school degree those with a bachelor s degree do not experience negative effects male refugees who had lived longer in limbo have a lower likelihood of being employed and studying in france while similar females make fewer french friends

employer attitudes the marginal employer and the ethnic wage gap in most eu countries ethnic minorities have lower wages than does the ethnic majority to what extent these wage gaps are the result of prejudice toward ethnic minority workers is virtually unknown the authors examine the role that prejudice plays in the creation of the ethnic wage gap in one of europe s most egalitarian countries sweden the analysis takes into account the important distinction between average employer attitudes and the attitude of the marginal employer the attitude of the most prejudiced employer hiring the ethnic minority results confirm that the attitudes of the marginal employer but not those of the average employer are important for explaining the ethnic wage gap

civil conflict and forced migration the micro determinants and welfare losses of displacement in colombia summary forced displacement in colombia has soared due to the escalating internal conflict the purpose of this paper is twofold first to identify adequate instruments for addressing the problem of displacement by estimating its determinants and comparing these findings with the standard migration literature second to estimate its welfare losses thus providing evidence as to whether the response to this problem has been proportional to its size we find that the welfare losses caused by displacement are 37 of the net present value of rural lifetime aggregate consumption our empirical findings also show that a violent environment modifies the net benefits of migration

the economic situation of first and second generation immigrants in france germany and the united kingdom a central concern about immigration is the integration into the labour market not only of the first generation but also of subsequent generations little comparative work exists for europe s largest economies france germany and the uk have all become perhaps unwittingly countries with large immigrant populations albeit with very different ethnic compositions today the descendants of these immigrants live and work in their parents destination countries this article presents and discusses comparative evidence on the performance of first and second generation immigrants in these countries in terms of education earnings and employment it is widely believed that many european countries have a serious problem with the integration of immigrants and their children leed 2006 many northern european countries have accumulated sizeable populations of immigrants but the lack of longterm strategies and policies to integrate these into societal structures and the labour market is often cited as one reason for social and economic exclusion of the children of these immigrants in the past decade southern european countries such as spain and italy have experienced similar if not larger immigrations than the large northern european economies france germany and the uk in the late 1950s to early 1970s again it seems that there is little thought devoted to long term strategies for immigrants and their descendants the experience of those countries that had large scale immigration in the last half of the twentieth century should be of importance for devising future immigration and integration policies however there is rather little hard evidence in the literature about the relative position of immigrants and their descendants in these countries in a manner that allows comparisons to be made in this article we aim to provide a comparative study of a number of outcomes education earnings and employment of both first and second generation immigrants of different origins in the three largest european economies france germany and the uk

discrete choice with social interactions this paper provides an analysis of aggregate behavioural outcomes when individual utility exhibits social interaction effects we study generalized logistic models of individual choice which incorporate terms reflecting the desire of individuals to conform to the behaviour of others in an environment of noncooperative decisionmaking laws of large numbers are generated in such environments multiplicity of equilibria in these models which are equivalent to the existence of multiple self consistent means for average choice behaviour will exist when the social interactions exceed a particular threshold local stability of these multiple equilibria is also studied the properties of the noncooperative economy are contrasted with the properties of an economy in which a social planner determines the set of individual choices finally a likelihood function based on the theoretical model is given and conditions for the econometric identifiability of the model are established

ethnicity and development in africa a reappraisal 131 enroll while membership is an entitlement that can be activated the entitlement is restricted by family membership as in other developing regions formal institutions are weak in modern africa and persons therefore tend to organize economic relationships through social institutions one way of augmenting the stock of capital is through education another is through migration to the city to a great degree it is families who organize the flow of resources that promote both urban migration and the acquisition of skills recognizing the central role of families in the formation of capital one can achieve a better grasp of the relationship between modernization and ethnicity to a significant degree modernization is achieved through the process of human capital formation this process is privately organized that is to say it is organized by families families organize the flow of resources between generations and sectors thus promoting the acquisition of skills and urban migration and thus the modernization of societies it is by stabilizing the contract between generations within family units that ethnic groups facilitate the process of investment to illustrate i use data collected from a village in luapula province zambia which supplies labor to the mining centers of zambia and congo when conducting my field work i focused on links between town and country and found that the income rural dwellers derived from town varied systematically with the structure size age composition and education of their families the coefficients in the remittance function suggested that an additional child yields on average 3 23 kwacha in the form of financial those who study modern africa commonly highlight three features its poverty its instability and its ethnic diversity whether in lurid popularizations e g robert kaplan 1994 or in social scientific research e g william easterly and ross levine 1997 but see also paul collier and a hoeffler 1998 scholars reason that africa is poor because it is unstable and that its instability derives from its ethnic complexity ethnicity thus lies it is held at the root of africa s development crisis this essay critiques the conventional wisdom by mounting an alternative interpretation using both qualitative and quantitative data from africa this article argues that

the effect of air traffic delays on airline prices abstract a legislative change in takeoff and landing restrictions at laguardia airport provides an opportunity to study the effect of an exogenous shock to product quality on prices in the airline industry i test how the price response varies with the degree of competition in the market i find that prices fall by 1 42 on average for each additional minute of flight delay and that the price response is substantially larger in more competitive markets

entitled to work urban property rights and labor supply in peru this brief summarizes the results of a gender impact evaluation study entitled entitled to work urban property rights and labor supply in peru new legal rights were issued in 1996 project teams providing titling service through 2003 in peru the study observed that between 1996 and 2003 the peruvian government issued property titles to over 1 2 million urban households the largest titling program targeted at urban squatters in the developing world this paper examines the labor market effects of increases in tenure security resulting from the program pre program squatters in program neighborhoods were significantly more likely to report improved tenure security by 60 percent similarly program participants were 18 8 percentage points less likely to report a high likelihood of eviction or invasion and 18 8 percentage points more likely to report that their dwelling was currently very secure from eviction or invasion the likelihood of working inside the home significantly falls by 11 6 percentage points for the average squatter family with two program periods

assimilation changes in cohort quality and the earnings of immigrants this paper reexamines the empirical basis for two facts that seem to be found in most cross section studies of immigrant earnings 1 the earnings of immigrants grow rapidly as they assimilate into the united states and 2 this rapid growth leads to many immigrants overtaking the earnings of the natives within 10 15 years after immigration using the 1970 and 1980 u s censuses this paper studies the earnings growth experienced by specific immigrant cohorts during the period 1970 80 it is found that within cohort growth is significantly smaller than the growth predicted by cross section regressions for most immigrant groups this differential is consistent with the hypothesis that there has been a secular decline in the quality of immigrants admitted to the united states

does competition among public schools benefit students and taxpayers comment school choice policies promise to align the incentives of school administrators with the demands of parents and may therefore lead to more efficient educational production milton friedman 1962 geoffrey brennan and james buchanan 1980 john chubb and terry m moe 1990 absent a large scale school voucher program in the united states however this prediction has been difficult to test several authors e g melvin v borland and roy m howsen 1992 clive r belfield and henry m levin 2002 have suggested studying the effects of tiebout choice the use of the residential location decision to select among local monopoly education providers the idea here is that fragmented governance induces competition among school districts analogous to that which would occur among schools with nonresidential choice in an influential paper caroline m hoxby 2000 points out that current governance structures are potentially endogenous to school productivity and proposes that variation in topography which may have influenced optimal jurisdiction size before modern transportation technologies provides a source of exogenous variation she estimates instrumental variables regressions of individual test scores and school spending on a metropolitan level tiebout choice index defined as one minus a herfindahl concentration index with districts enrollments as their market shares using as excluded instruments the number of larger and smaller streams in the area she reports substantial positive effects of district fragmentation on student test scores and negative effects on spending this comment presents a reanalysis of hoxby s test score results which form the core of her empirical analysis these results turn out to be quite sensitive to plausible alterations to hoxby s specification in particular the large significant effect of choice on achievement obtains

ethnic enclaves and the economic success of immigrants evidence from a natural experiment recent immigrants tend to locate in ethnic enclaves within metropolitan areas the economic consequence of living in such enclaves is still an unresolved issue we use an immigrant policy initiative in sweden when government authorities distributed refugee immigrants across locales in a way that may be considered exogenous this policy initiative provides a unique natural experiment which allows us to estimate the causal effect on labor market outcomes of living in enclaves we find substantive evidence of sorting across locations when sorting is taken into account living in enclaves improves labor market outcomes for instance the earnings gain associated with a standard deviation increase in ethnic concentration is in the order of four to five percent

self selection and the earnings of immigrants this paper analyzes the way in which the earnings of the immigrant population may be expected to differ from the earnings of the native population because of the endogeneity of the decision to migrate the empirical study shows that differences in the u s earnings of immigrants with the same measured skills but from different home countries are attributable to variations in political and economic conditions in the countries of origin at the time of migration excerpt

the dynamics of criminal behavior evidence from weather shocks while the persistence of criminal activity is well documented this may be due to persistence in the unobserved determinants of crime there are good reasons to believe however that there may actually be a negative relationship between crime rates in a particular area due to temporal displacement we exploit the correlation between weather and crime to examine the short run dynamics of crime using variation in lagged crime rates due to weather shocks we find that the positive serial correlation is reversed these findings suggest that the long run impact of temporary crime prevention efforts may be smaller than the short run effects

unemployment dynamics among migrants and natives unemployment rates are often higher for migrants than for natives this could result from longer periods of unemployment as well as from shorter periods of employment this paper jointly examines male native migrant differences in the duration of unemployment and subsequent employment using german panel data and bivariate discrete time hazard rate models compared to natives with the same observable and unobservable characteristics unemployed migrants do not flnd less stable positions but they need more time to flnd these jobs the probability of leaving unemployment also varies strongly between ethnicities while flrst and second generation turks are identifled as the major problem group therefore policy should concentrate on the job flnding process of turkish migrants to flght their disadvantages on the labor market

european welfare states and migrant poverty the institutional determinants of disadvantage in almost all european welfare states immigrants face a higher risk of poverty than natives but the gap between the two groups varies in examining this variation our article contributes to the nascent literature on the impact of welfare states on immigrants we hypothesize that whether immigrants benefit from welfare generosity depends on three intervening factors immigration policy labor market regulation and welfare eligibility rules we use fuzzy set analysis to examine the interplay of these determinants in 16 west european states the findings show that in most countries a high migrant disadvantage results from the combination of a large share of humanitarian and family immigrants and generous social policies the underlying mechanism is that unwanted immigrants are institutionally impeded from full access to generous welfare states

strong and weak ties in employment and crime this paper analyzes the interplay between social structure and information exchange in two competing activities crime and labor we consider a dynamic model in which individuals belong to mutually exclusive two person groups referred to as dyads there are multiple equilibria if jobs are badly paid and or crime is profitable unemployment benefits have to be low enough to prevent workers for staying too long in the unemployment status because they are vulnerable to crime activities if instead jobs are well paid and or crime is not profitable unemployment benefits have to be high enough to induce workers to stay unemployed rather to commit crime because they are less vulnerable to crime activities also in segregated neighborhoods characterized by high interactions between peers a policy only based on punishment and arrest will not be efficient in reducing crime it has to be accompanied by other types of policies that take into account social interactions

the labor market impact of immigration in western germany in the 1990 s in this article we estimate the wage and employment effects of recent immigration in western germany using administrative data for the period 1987 2001 and a labor market equilibrium model we find that the substantial immigration of the 1990s had very little adverse effects on native wages and on their employment levels instead it had a sizeable adverse employment effect on previous immigrants as well as a small adverse effect on their wages these asymmetric results are partly driven by a higher degree of substitution between old and new immigrants in the labor market and in part by the rigidity of wages in less than flexible labor markets in a simple counter factual experiment we show that in a world of perfect wage flexibility and no unemployment insurance the wage bill loss of old immigrants would be much smaller

neighbourhood income inequality and property crime this paper examines the relationship between income inequality and property crime using census block group data from three us cities nashville tn portland or and tucson az this paper is one o

the effect of language training on immigrants economic integration empirical evidence from france abstract we examine the impact of language training on the economic integration of immigrants in france the assignment to this training offered by the french ministry of the interior depends mainly on a precise rule the training is provided if the test score of an initial language exam is below a certain threshold this eligibility rule creates a discontinuity in the relation between the test result and the variables of interest which is used to estimate the causal effect of language training through the method of regression discontinuity design we find that the number of assigned hours of training significantly increases labor force participation of the treated individuals the language classes appear to have a larger effect for individuals with higher levels of education while there is no robust differential effect by type of migration gender or age our estimated coefficients are remarkably similar when we rely on local linear regressions using the optimal bandwidth with few observations around the threshold and when we control parametrically for a polynomial of the forcing variable and use the whole estimation sample we conclude with a discussion of the candidate mechanisms for the improved labor market participation of immigrants

forced displacement and technology adoption an empirical analysis based on agricultural households in bosnia and herzegovina we use the bosnian living standards measurement study lsms survey to show that conflict induced displacement of agricultural households dramatically affects the adoption of new technologies in agriculture we exploit the heterogeneity in the level of violence in the pre war location to account for selection bias this natural experiment seems to be a source of exogenous variation in our case because violence aims at ethnic cleansing without economic consideration we find that the displaced are less likely than stayers to adopt fertiliser and pesticide

economic consequences of forced displacement abstractover 42 million people worldwide have been forcibly displaced from their communities though little is known about the impact of this movement on livelihoods i use a panel data set and exploit a geographic discontinuity to explore the effects of displacement in uganda i find that displaced households experience a significant initial decrease in consumption two years after households returned home displaced households still lag behind however households in the top quartiles of pre displacement assets have recovered some of their consumption though with significantly reduced education and wealth levels there is likely little or no recovery for the poorest households

the effect of the discount rate on depletion of exhaustible resources this paper argues that despite its widespread acceptance in the literature the basic proposition that a reduction an increase in the discount rate leads to greater conservation faster depletion of an exhaustible resource is not generally valid it shows that the effect of the discount rate on the rate of resource depletion depends on capital requirements for production of the substitute and extraction of the resource and on the size of the resource stock in fact it shows that there always exist at least two ranges of the resource stock size for which the effect is opposite to that conventionally believed

access to citizenship and the economic assimilation of immigrants immigrants often have lower employment rates and earnings than natives our empirical analysis relies on two reforms generating exogenous variation in the waiting time for citizenship we find that faster access to citizenship improves the economic situation of immigrant women especially their labour market attachment with higher employment rates longer working hours and more stable jobs immigrants also invest more in host country specific skills like language and vocational training faster access to citizenship seems a powerful policy instrument to boost economic integration in countries with traditionally restrictive citizenship policies

welfare and child health the link between afdc participation and birth weight the stated goal of the aid for families with dependent children program is to improve the well being of children in poor families the program has come under considerable attack in recent years from critics who argue that participation in afdc is associated with maternal behaviors that are bad for children we investigate this question using birth weight as a measure of child health we find that participation in afdc during pregnancy is associated with delays in obtaining prenatal care smoking and drinking during pregnancy younger maternal age at the birth and ultimately with lower birth weights even when observable characteristics of the mother are controlled for however we show that when unobservable characteristics of the mother are controlled for there is actually a positive association between participation in afdc and the birth weights of children of white women from poor families we find no association between birth weight and maternal participation in afdc among black children

non separable time preferences novelty consumption and body weight theory and evidence from the east german transition to capitalism abstract this paper develops a dynamic model to illustrate how diet and body weight change when novel food products become available to consumers we propose a microfounded test to empirically discriminate between habit and taste formation in intertemporal preferences moreover we show that novelty consumption and endogenous preferences can explain the persistent correlation between economic development and obesity by empirically studying the german reunification we find that east germans consumed more novel western food and gained more weight than west germans when a larger variety of food products became readily accessible after the fall of the wall the observed consumption patterns suggest that food consumption features habit formation

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

conflict displacement and labor market outcomes in post war bosnia and herzegovina abstract the war in bosnia and herzegovina of the early nineties displaced 1 3 million people this study uses longitudinal data to document the effects of this displacement on labor market outcomes to account for endogeneity in displacement i exploit the fact that the level of violence affected the decision to leave and that pre war economic performance is orthogonal to local violence levels i find that displaced bosnians are less likely to be working relative to the people who stayed displaced men experience higher unemployment levels and displaced women are more likely to drop out of the labor force

neighborhood effects on crime for female and male youth evidence from a randomized housing voucher experiment the moving to opportunity mto demonstration assigned housing vouchers via random lottery to public housing residents in five cities we use the exogenous variation in residential locations generated by mto to estimate neighborhood effects on youth crime and delinquency the offer to relocate to lower poverty areas reduces arrests among female youth for violent and property crimes relative to a control group for males the offer to relocate reduces arrests for violent crime at least in the short run but increases problem behaviors and property crime arrests the gender difference in treatment effects seems to reflect differences in how male and female youths from disadvantaged backgrounds adapt and respond to similar new neighborhood environments

migrants ancestors and foreign investments we use 130 years of data on historical migrations to the u s to show a causal effect of the ancestry composition of u s counties on foreign direct investment fdi sent and received by local firms to isolate the causal effect of ancestry on fdi we build a simple reduced form model of migrations migrations from a foreign country to a u s county at a given time depend on 1 a push factor causing emigration from that foreign country to the entire u s and 2 a pull factor causing immigration from all origins into that u s county the interaction between time series variation in origin specific push factors and destination specific pull factors generates quasi random variation in the allocation of migrants across u s counties we find that doubling the number of residents with ancestry from a given foreign country relative to the mean increases the probability that at least one local firm engages in fdi with that country by 4 percentage points we present evidence that this effect is primarily driven by a reduction in information frictions and not by better contract enforcement taste similarities or a convergence in factor endowments

studies in austrian capital theory investment and time summary of the papers 1 on the development of austrian capital theory 2 relationships between modern austrian and sraffa s capital theory 3 austrians versus austrians i a subjectivist view of interest 4 austrians versus austrians ii functionalist versus essentialist theories of interest 5 a neo austrian two period multisector model of capital 6 own rates of interest in a general multisector model of capital 7 a neo austrian approach to the open endedness of the future an overview 8 neo austrian characterization of proportional prices with positive rate of interest relative to the growth rate 9 roundaboutness nontightness and malinvaud prices in multisector models with infinite horizon 10 competitive finite value prices a complete characterization 11 time and production period versus continuous analysis 12 flow and fund approaches to irreversible investment decisions 13 on the methodology of strategic interaction in time 14 a dynamic game with macroeconomic investment decisions under alternative market structures 15 remarks on a dynamic game with macroeconomic investment 16 a dynamic macroeconomic investment game with non linear saving behavior 17 time irreversibilities in economics some lessons from the natural sciences list of authors

thieves thugs and neighborhood poverty abstract this paper develops a model of crime analyzing how such behavior is associated with individual and neighborhood poverty the model shows that even under relatively minimal assumptions a connection between individual poverty and both property and violent crimes will arise and moreover neighborhood effects can develop but will differ substantially in nature across crime types a key implication is that greater economic segregation in a city should have no effect or a negative effect on property crime but a positive effect on violent crime using iv methods i show this implication to be consistent with the empirical evidence

is there monopsonistic discrimination against immigrants the authors investigate immigrants and natives labor supply to the firm within an estimation approach based on a dynamic monopsony framework applying duration models that account for unobserved worker heterogeneity to a large administrative employer employee data set for germany they find that immigrants supply labor less elastically to firms than do natives under monopsonistic wage setting the estimated elasticity differential predicts a 7 7 log points wage penalty for immigrants thereby accounting for the entire unexplained native immigrant wage differential of 5 8 to 8 2 log points when further distinguishing immigrant groups differing in their time spent in the german labor market their immigration cohort and their age at entry the authors find that the observed unexplained wage differential is larger for those groups that show a larger elasticity differential relative to natives these findings not only suggest that search frictions are a likely cause of employers more pronounced monopsony