the demand for post compulsory education in the uk and the effects of educational maintenance allowances in this paper the author develops a model of investment in postcompulsory schoolin g based on human capital theory the model is estimated using data on a sample of sixteen and seventeen year olds derived from the family expenditure survey the results reveal significant differences in the factors influencing enrollment in postcompulsory education between m ales and females mot notably household income is an important deter minant of educational participation for females but not for their ma le counterparts on the basis of these results the author assesses t he effects of the introduction of educational maintenance allowances on participation rates in the united kingdom

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

product innovation and firm growth evidence from the integrated circuit industry applied research on growth and innovation seems to suggest that successful innovations do not significantly enhance firm growth this paper tests the hypothesis that the level of observation at which applied research is typically conducted hampers identification of a significant association between innovation and sales growth rates exploiting a unique data set we find that product innovations commercialized in the immediate past positively affect the corporate revenue streams of semiconductor companies

class size education and wages we use micro data for england and wales to examine the effects of class size on the decision to stay on in full time schooling at 16 and on wages later in life we find that class size has a sizeable and significant effect on the decision to stay on this finding is very robust wage equations show the effect of staying on is significantly positive for wages combining this with the effect of class size on the staying on decision reveals that class size significantly affects future wages reduced form models lead to much less accurate and insignificant estimates

the returns to school quality college choice and earnings this article extends the research on school quality by focusing on the structural effects of high school quality on earnings i specify a model of college choice and earnings determination that captures two separate effects of school quality on earnings first school quality affects a high school student s choice of college college choice in turn affects the individual s postschool earnings second the additional skills accumulated via a higher quality high school directly influence wages the results suggest that high school quality influences earnings by affecting college choice behavior while the direct effect of school quality on earnings is less evident

birth order schooling and earnings birth order effects are posited by many to affect earnings and schooling we show how such effects can be interpreted to shift either the earnings possibility frontier for siblings or parental preferences we find empirical evidence for birth order effects on age adjusted schooling and on earnings for young u s adults though the latter is not robust for all specifications the examination of intrahousehold allocations suggests that these birth order differences occur despite parental preferences or prices by birth order favoring later borns apparently because of stronger endowment effects that favor firstborns

long term effects of class size this article evaluates the long term effects of class size in primary school we use rich data from sweden and exploit variation in class size created by a maximum class size rule smaller classes in the last three years of primary school age 10 to 13 are beneficial for cognitive and noncognitive ability at age 13 and improve achievement at age 16 most important we find that smaller classes have positive effects on completed education wages and earnings at age 27 to 42 the estimated wage effect is large enough to pass a cost benefit test

fiscal interactions of central city and suburbs the case of zurich one possible explanation for the migration from the central city to fiscally independent suburbs is a lack of equivalence between taxation and perceived benefits from local public goods spill outs to suburbs add to this process and may lead to fiscal erosion of the central city piecemeal evidence is presented that this problem applies to the city of zurich various possible remedies are discussed one of which has been applied in zurich though not successfully it is shown theoretically and empirically why this failure occurred alternative countermeasures are suggested and an account of how zurich government officials reacted is supplied

location choice by households and polluting firms an evolutionary approach this paper examines several policy regimes to deal with the problem of households suffering from environmental damage by firms in the same region we employ an evolutionary framework to analyze migration movements in the course of time since firms and households will not relocate immediately in response to payoff differentials we show that taxation gives firms and households an incentive to stay away from each other laissez faire compensation only gives households firms an incentive to stay away from firms households we find that taxation creates the right incentives to reach a local welfare maximum however when there are multiple local maxima circumstances may arise under which compensation leads to a better outcome than taxation c 2004 elsevier b v all rights reserved

endogenous number of firms horizontal concentration and heterogeneity of firms a note we re examine implications of heterogeneity of firms under a cournot setting on free entry equilibria concerning the number of firms heterogeneity reduces the number of firms in equilibrium the larger the cost asymmetries the smaller the free entry equilibrium number of firms in an industry

measuring investment in education historic debates about the measurement of capital are even more complicated in the case of education and human capital as extensive research demonstrates education resources are not consistently related to student performance in existing elementary and secondary schools this inefficiency in public schools implies that spending and resource measures do not accurately capture variations in school quality this finding then has clear implications for both education policy and economic research because school inputs are poor policy instruments an alternative policy focus that appears much more productive is performance incentives related to student achievement

choice at sixteen the proportion of sixteen year olds in britain who stay on at school is low by oecd standards this paper examines the probability of completing education at the minimum legal age using micro data on individuals parameter estimates of a reduced form logit model of the leaving probability are obtained for both boys and girls the rich data set used allows the separate effects of family school and ability to be assessed family background in the form of class and parental education is shown to have a large effect even when ability and school type are controlled for copyright 1989 by the london school of economics and political science

coexistence and segregation of two groups in a metropolitan area through externalities abstract this paper proposes to regard the population distributions of two groups in a metropolitan area as equilibrium solutions of systems of ordinary differential equations this approach an extension of the miyao s single subarea model to a many subarea case allows us to incorporate the effect of fiscal pecuniary neighborhood externalities into the classic alonso mills muth model this paper investigates its three typical cases and obtains one coexistent and two segregated solutions consideration on these cases leads to the conclusion that substantial neighborhood externalities other than simple tax redistribution exist between the groups in the united states as by products of this analysis it is also shown that positive bid gradients and discontinuities of bid prices are realized under suitable conditions

age size growth and survival uk companies in the 1980s this paper examines growth and survival amongst quoted and unquoted u k companies in the period 1975 85 and compares the results with earlier u k and u s studies an examination of death rates shows that smaller companies had higher death rates but the largest and smallest companies were least vulnerable to takeover careful attention is therefore paid to problems of sample selection bias it is shown that smaller companies grew faster than larger companies that gibrat s law does not hold amongst smaller firms that age is negatively related to growth and that these results are not an artifact of sample selection bias copyright 1994 by blackwell publishing ltd

productivity across industries and countries time series theory and evidence the authors examine whether convergence in aggregate productivity is also occurring at the industry level in fourteen oecd countries from 1970 to 1987 using both cross section and time series methods they find convergence in some sectors such as services however surprisingly the authors find that convergence does not hold for the manufacturing sector decomposing aggregate convergence into industry productivity gains and changing sectoral shares of output they find the service sector to be responsible for the bulk of cross country convergence to the united states the authors develop a new result on the asymptotic normality of panel unit root estimators to formally test within sector convergence copyright 1996 by mit press

human capital pricing equations with an application to estimating the effect of schooling quality on earnings this paper formulates and estimates alternative models for the pricing of labor services we present economic models that rationalize empirical specifications in the literature and we offer evidence on the validity of those specifications widely used efficiency units models of labor services are inconsistent with evidence from the u s labor market a model of heterogeneous skills provides a more accurate description of earnings data we present evidence that the pursuit of comparative advantage and selective migration are important features of the u s labor market when these features are included in the model the only support for an effect of schooling quality on earnings is through the return to college education three interactions are empirically important in explaining log wage equations a between schooling quality and education b between regional labor market shocks and education and c between region of residence and regionof birth because of this third interaction which can arise from comparative advantage in the labor market no unique quality effect on returns to education can be defined independently of the market in which it is used

job information networks neighborhood effects and inequality this paper explores the theoretical and empirical literature to examine the use by different social groups of informal sources of information provided by friends relatives and acquaintances during job search and its consequences for the job market it also addresses the role of network structure and size the resource endowments of contacts and nature of the links between contacts to explain differences in the effects of job information networks in doing so the paper also turns to the sociology literature on job information networks and provides an economic perspective on such sociological concepts as strong versus weak ties inbreeding distance from structural holes etc the paper distinguishes between models of exogenous job information networks that is where individuals obtain job related information through a given social structure and endogenous job information networks which are social networks that result from individuals uncoordinated actions the paper pays special attention to such issues as physical and social proximity and sharing of information and discusses them in the context of the recent social interactions and neighborhood effects literature finally the paper outlines a model that integrates job information networks where interactions occur in business cycle frequencies with the dynamics of human capital formation which include the joint effects of parental community and neighborhood human capital and are set in life cycle frequencies for the purpose of organizing suggestions for future research and examining earned income inequality

corporate growth and profitability this paper argues that current period corporate growth rates reflect changes in current expectations about the long run profitability of a firm this means that growth rates are likely to vary randomly over time using data from 271 large quoted uk firms over the period 1976 1982 we report the existence of a positive statistically significant and robust correlation between current period growth rates and a natural measure of changes in current expectations about long run profitability namely changes in the stock market valuation of the firm nevertheless we find that variations in corporate growth rates are difficult to predict

a hedonic approach to residential succession a model of neighborhood turnover drawn from bond and coulson 1989 is proposed the type of turnover process that is obtained is shown to depend mainly on the hedonic bid functions for housing and neighborhood quality a demand system of four hedonic attributes is estimated the main results are that the traditional model of filtering by age of unit does not occur and that filtering by housing size does tipping due to changes in median neighborhood income is also quite possible tipping through changes in racial composition appears less likely copyright 1990 by mit press

labour market impacts of school expenditure and class size evidence from china this study is a first attempt to estimate the impact of school resources on students subsequent labour market earnings in china combining unprecedented school data from the early 1950s to the 199

investment dynamics with fixed capital adjustment cost and capital market imperfections this paper examines the implications of financing frictions on capital stocks and on capital accumulation in the presence of non convex costs of adjusting the capital stock in this setup finance has an influence on both the level of capital and the timing of investment finance and productivity are complements and finance influences investment the strongest when firms wish to significantly adjust capital for fundamental reasons these theoretical considerations are confronted with uk data while finance is mostly irrelevant for long term capital decision the short run investment function shows a significant impact of finance which is also strongest for strong fundamental investment incentives

gibrat s law and quantile regressions an application to firm growth abstract the nexus between firm growth size and age in u s manufacturing is examined through the lens of quantile regression models this methodology allows us to overcome serious shortcomings entailed by linear regression models employed by much of the existing literature unveiling a number of important properties size pushes both low and high performing firms towards the median rate of growth while age is never advantageous and more so as firms are relatively small and grow faster these findings support theoretical generalizations of gibrat s law that allow size to affect the variance of the growth process but not its mean cordoba 2008

the profitability of electricity generating firms and policies promoting renewable energy using a cross country firm level dataset this study empirically analyses how the implemented renewable electricity promotion systems tradable green certificates vs feed in tariffs affected the pro

the failure of input based schooling policies in an effort to improve the quality of schools governments around the world have dramatically increased the resources devoted to them by concentrating on inputs and ignoring the incentives within schools the resources have yielded little in the way of general improvement in student achievement this paper provides a review of the us and international evidence on the effectiveness of such input policies it then contrasts the impact of resources with that of variations in teacher quality that are not systematically related to school resources finally alternative performance incentive policies are described

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

teachers versus parental choice and the tracking distribution of students a natural experiment this article studies the secondary school track choice and considers to what extent parents and teachers assessment of students diverge we take advantage of a reform in the german state of north rhine westphalia nrw in 2006 the reform replaced parents choice about their children s secondary school type by a binding teacher recommendation our data comprise class level information on all public primary schools in the state we find that teachers tend to recommend higher school types than parents however more precise analysis shows that this effect can be limited to districts with above average proportion of immigrants

dynamic instability of a mixed city in the presence of neighborhood externalities it has been often asked whether a city currently accommodating a variety of economic social and racial groups will continue to be a mixed city or will become exclusively occupied by a single group particularly poor blacks with all other groups moving out of the city in the long run in order to answer this question properly it seems essential to develop a long run dynamic model of a city with emphasis on socioeconomic factors like neighborhood externalities within or among various groups of residents as well as spatial factors like the individual choice of residential space and location it might be safely said that in the literature the only theoretical work which employs a long run dynamic approach to this kind of problem is a paper on dynamic models of segregation by thomas schelling 197 1 although his socioeconomic analysis has revealed some of the dynamic properties of a racially mixed area with neighborhood externalities his model itself is quite unsatisfactory from the economic point of view since it lacks individual utility functions and thereby disregards the aspect of the individual choice of space and location within the city 2 as a result he failed to analyze the effect of spatial segregation within the city on the long run nature of the residential composition of the city in this paper i develop a long run dynamic model of an open city which accommodates two groups of households for example blacks and whites rich and poor young and old with their utility functions depending on a consumption good and residential space i also assume two kinds of neighborhood externalities the first is called negative intergroup externalities that is the utility level of a typical household in one group is adversely affected by an increase in the number of households in the other group living in the city the second is called positive intragroup externalities that is the utility level of a typical household in one group is positively affected by an increase in the size of its own group in in the city first i define a mixed city equilibrium as a long run equilibrium which allows the two groups to coexist in the city in the long run and then introduce a dynamic adjustment process of household movement into and out of the city it is proved that the mixed city equilibrium is always unstable in the presence of negative intergroup externalities and or positive intragroup externalities if residential land is perfectly homogeneous and there is no differential transport cost incurred within the city it turns out however that in the case of a monocentric city with positive transport cost the mixed city equilibrium may be stable or unstable depending on the degree of neighborhood externalities because of the stabilizing effect of spatial segregation between the two groups within the city

class size teacher hours and educational attainment we employ a regression discontinuity design to identify effects on educational attainment after compulsory school of class size and the number of pupils per weekly teacher hour using administrative rules as instruments we use danish administrative panel data average class size is 20 about the same as in the us and most european countries restricting the sample to observations close to the enrolment discontinuity points where the administrative rules have greatest predictive power instrumental variables estimates are consistently negative estimates from the preferred specification are marginally significant and indicate modest effects in line with earlier studies estimates for subgroups are less precise but they indicate larger effects for pupils from less advantaged backgrounds

expectations and the timing of neighborhood change abstract we study the role of expectations when agents have a preference for segregation and households face moving frictions in a fixed environment there are multiple equilibria agents expectations determine whether an ethnic transition occurs however the outcome is unique if there is a deterministic trend that gradually makes the neighborhood more appealing to the outside group it is also unique if the relative payoff from living in the neighborhood is subject to small shocks in both cases the insiders must leave at the first possible moment when the outsiders would outbid them if an immediate ethnic transition were expected

the returns to the quantity and quality of education evidence for men in england and wales until the late 1960s state schooling in england and wales was determined by an ability test of pupils at age 11 which had an effect on both the quantity and quality of education by estimating the relationship between earnings and earlier schooling during a period when school areas changed from selective to non selective education we consider how the returns to the quantity of education are confounded by differences in the quality of schooling and whether the effects of quality are confounded by its correlation with quantity our results confirm recent evidence that returns to education quantity are large and quality effects are small

a spatial temporal model of human capital accumulation abstract we develop an overlapping generations model of human capital accumulation and analyze its spatial and temporal properties the interplay between local spillovers of human capital and global market participation partitions the society into socio economic classes we focus upon stationary equilibria and show that a large class of them are locally stable stationary equilibria can be homogeneous where the human capital distribution is degenerate or stratified with a distinct spatial pattern of human capital distribution we provide several examples and specify conditions under which equilibria are sensitive to the spatial structure of the society we illustrate our results by numerical simulations journal of economic literature classification numbers d90 i21 j24 o15

equity and efficiency in human capital investment the local connection a general model of community formation and human capital accumulation with social spillovers and decentralized school funding is used to analyse the causes of economic segregation and its consequences for equity and efficiency significant polarization arises from minor differences in endowments preferences or access to capital markets this makes income inequality more persistent across generations but the same need not be true for wealth equilibrium stratification tends to be excessive resulting in low aggregate surplus whether state equalization of school resources can remedy these problems hinges on how purchased social and family inputs interact in education and in mobility decisions

stigmatized asset value is it temporary or long term stigma is a negative attribute of real estate acquired by environmental contamination and reflected in its value elliot jones 1996 using a model of neighborhood turnover with external economies we show that both temporary stigma and long term stigma are possible equilibrium outcomes after the discovery and cleanup of a hazardous waste site the existence and duration of stigma are examined using hedonic price techniques with data from housing sales prices in dallas county texas we find that results depend critically on distance from the hazardous waste site neighborhood turnover due to changes in the level of poverty also appears likely

a pecuniary reason for income mixing abstract empirical studies have found a high degree of income mixing in american neighborhoods we give a new explanation of this phenomenon that is based on consumer search a low price for a given good benefits high valuation buyers more than low valuation buyers but with search the probability of obtaining a low price is increasing in the proportion of low valuation buyers this gives high valuation buyers an incentive to live near low valuation buyers with many goods a buyer has an incentive to live near neighbors whose valuations are uncorrelated with hers

interactive property valuations this paper estimates models of social interactions within residential neighborhoods using data on neighborhood clusters for standard metropolitan areas in the united states from the american housing survey for 1985 and 1989 it examines eects of social interactions in the form of reaction functions for homeowners valuation of their properties at the level of the immediate residential neighborhood with neighborhoods consisting of a randomly chosen dwelling unit and about ten nearest neighbors the paper identifies the eect of endogenous social interactions to be significant and large ranging from 0 587 to 0 770 and much more important then the dynamic autoregressive structure of the model when both variables are present and both are significant the interactive regressions that it reports improve upon commonly used hedonic regressions as well the paper provides empirical support for the notion common in the real estate world of the importance of neighboring properties in property valuations

aggregate employment dynamics building from microeconomic evidence this paper studies quarterly employment flows of approximately 10 000 u s manufacturing establishments the authors use establishments hours week to construct measures of the deviation between desired and actual employment and use these as the establishments main state variables the main findings are 1 microeconomic adjustment functions are nonlinear with plants adjusting disproportionately to large shortages 2 adjustments are often either large or nil suggesting the presence of nonconvexities in the adjustment cost technologies 3 the bulk of average employment fluctuations is accounted for by aggregate rather than reallocation shocks and 4 microeconomic nonlinearities amplify the impact of large aggregate shocks copyright 1997 by american economic association

are differences in firm size transitory or permanent an erratum for this article has been published in journal of applied econometrics 18 2 2003 249 previous empirical work on corporate growth rates using cross section or short panel econometric techniques suggests that growth rates are random but that some degree of mean reversion exists this means that size differences between firms are transitory another more natural way to explore the long run distribution of firm sizes is to examine data on the growth of particular firms over long periods of time using a sample of 147 uk firms observed continually for more than 30 years our conclusions are that growth rates are highly variable over time and that differences in growth rates between firms do not persist for very long further firms show no tendency to converge to either a common size or to a pattern of stable size differences over time these results are compared and contrasted with standard approaches that suggest that firms reach and maintain stable positions in a skewed size distribution copyright 2002 john wiley sons ltd

the effects of class size on student achievement new evidence from population variation abstract i identify the effects of class size on student achievement using longitudinal variation in the population associated with each grade in 649 elementary schools i use variation in class size driven by idiosyncratic variation in the population i also use discrete jumps in class size that occur when a small change in enrollment triggers a maximum or minimum class size rule the estimates indicate that class size does not have a statistically significant effect on student achievement i rule out even modest effects 2 to 4 percent of a standard deviation in scores for a 10 percent reduction in class size

the trade off between child quantity and quality an empirical investigation of trade offs between number of children and their scholastic performance confirms that family size directly affects children s achievement though parents show no favori