a multiplicative model of optimal ceo incentives in market equilibrium this paper presents a unified theory of both the level and sensitivity of pay in competitive market equilibrium by embedding a moral hazard problem into a talent assignment model by considering multiplicative specifications for the ceo s utility and production functions we generate a number of different results from traditional additive models first both the ceo s low fractional ownership the jensen murphy incentives measure and its negative relationship with firm size can be quantitatively reconciled with optimal contracting and thus need not reflect rent extraction second the dollar change in wealth for a percentage change in firm value divided by annual pay is independent of firm size and therefore a desirable empirical measure of incentives third incentive pay is effective at solving agency problems with multiplicative impacts on firm value such as strategy choice however additive issues such as perk consumption are best addressed through direct monitoring jel d2 d3 g34 j3

the school to work transition a cross national perspective school to work patterns and issues are discussed for seven economies france germany japan the netherlands sweden the united kingdom and the united states the emphasis is placed on differences across countries in the current labor market position of young people and recent trends therein along with the institutions that regulate youth education training and employment the power of public policies including labor market deregulation labor market programs vocationalization of education and apprenticeship to improve youth outcomes is discussed drawing on national evaluation literatures evidence of extensive policy failure points up the need to develop nationally appropriate institutions to improve school to work transitions

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

are rich people smarter abstract we formulate a general stochastic process of wealth accumulation by capital investment and analyze the conditions required to ensure convergence to the empirically observed pareto wealth distribution while homogeneous investment talent leads to the pareto distribution under very general conditions even a mild degree of differential investment talent results in a non pareto wealth distribution this finding suggests that chance rather than differential investment talent is the dominant factor in the process of wealth accumulation by financial investment our findings conform with market efficiency and may have implications regarding the origins the economic significance and the social desirability of wealth inequality at the high wealth range

metropolitan evolution sectoral economic change and the city size distribution metropolitan evolution is conceptualised from a broad long term perspective that focuses on demographic and sectoral economic variables emphasis is placed on understanding these changes from a process oriented approach that considers its general relevance rather than its outcomes or microanalytic details a selective review of the literature provides a significant perspective and background on the stages model that is applied to the study of metropolitan change this is then related to the pareto city size distribution by considering the interurban population distribution coefficient and its expected performance over the various phases of metropolitan evolution a hypothetical interurban manufacturing employment distribution coefficient analogous to the pareto population coefficient is also considered and is related to the process of metropolitan and interurban sectoral economic change the relationship between metropolitan change and national urban size distribution is viewed as a significant compone

effects of the minimum wage on the employment status of youths an update the large decline in the relative value of the minimum wage during the 1980s makes that period a valuable one for identifying the impact of variation in the minimum wage on youth employment this study produces the robust finding that when the experience of the 1980s is included a 10 percent increase in the minimum wage is estimated to reduce teen employment by less than 1 percent the lower end of the range of previous estimates because this small employment effect is offset by a labor force withdrawal effect the study finds no discernible effect on measured unemployment the study also finds no apparent effect of the minimum wage on the employment of young adults aged 20 24

urban development in the united states 1690 1990 the united states transformed itself from a rural to an urban society over the last three cen turies after a century of unremarkable growth the pace of urbanization was historically un precedented between the nineteenth and the early twentieth centuries in the twentieth century the urban population continued to increase but in a much more dispersed manner as the sub urban population increased throughout these developments cities also exhibited considerable variation in their population sizes this paper finds that the pace and pattern of u s urban development are explained by changes in regional comparative advantage and in economies in transportation and local public goods which in turn were determined by the changes in the economic structures of cities this paper also finds that cities varied considerably in size because the larger cities reduced market transaction costs associated with coordinating greater geograph ic division of labor

firm size distributions an overview of steady state distributions resulting from firm dynamics models abstract empirical firm size distributions are the cumulated result of underlying firm dynamics involving entry of new firms and growth decline and exits of incumbent firms in this paper we give an overview of firm size distributions that result as steady states from models differing in the way these firm dynamics are modelled in the process we i derive common results and explain seemingly contradictory results ii propose new functional forms to describe firm size distributions iii give insight in the interrelationships between the distributions in terms of underlying firm dynamics iv give possible firm dynamical interpretations of the parameters of the distributions and v analyse to which extent the steady state approach is able to explain the shape of firm size distributions that are encountered in practice

income maintenance and labor force participation the paper studies the optimal tax subsidy schedules in an economy where the only decision of the agents is to work or not with an application to the case of france given an income guarantee provided by the welfare state the tax schedule that maximizes government revenue provides a benchmark the laffer bound above which it is inefficient to tax in fact under mild conditions a feasible allocation is second best optimal if and only if the associated taxes are lower than the laffer bound the only restriction that efficiency puts on the shape of the tax scheme is this upper laffer bound the laffer tax scheme itself can be computed from the joint distribution of the agents productivities and work opportunity costs depending on the economy it can take widely different forms and exhibit for instance negative marginal tax rates after estimating the joint distribution of productivities and work opportunity costs on french data i compute the laffer bound for two subpopulations single women and married women with two children or more quite surprisingly the actual incentives to work appear to be very close to the bound

economic growth in a cross section of cities abstract we examine the relationship between urban characteristics in 1960 and urban growth between 1960 and 1990 income and population growth move together and both types of growth are 1 positively related to initial schooling 2 negatively related to initial unemployment and 3 negatively related to the initial share of employment in manufacturing racial composition and segregation are uncorrelated with urban growth across all cities but in cities with large nonwhite communities segregation is positively correlated with population growth government expenditures except for sanitation are uncorrelated with growth government debt is positively correlated with later growth

inventory pooling under heavy tailed demand risk pooling has been studied extensively in the operations management literature as the basic driver behind strategies such as transshipment manufacturing flexibility component commonality and drop shipping this paper explores the benefit of risk pooling in the context of inventory management using the canonical model first studied in eppen eppen gd 1979 effects of centralization on expected costs in a multi location newsboy problem management sci 25 5 498 501 specifically we consider a single period multilocation newsvendor model where n different locations face independent and identically distributed demands and linear holding and backorder costs we show that eppen s celebrated result i e that the expected cost savings from centralized inventory management scale with the square root of the number of locations depends critically on the light tailed nature of the demand uncertainty in particular we establish that the benefit from pooling relative to the decentralized case in term

skills in the city this paper documents the allocation of skills across cities and estimates the impact of agglomeration on the hedonic prices of worker skills we find that large cities are more skilled than are small cities but only to a modest degree we also show that the increase in productivity associated with agglomeration as measured by the urban wage premium is larger for workers with stronger cognitive and people skills in contrast motor skills and physical strength are not rewarded to a greater degree in large cities urbanization thus enhances thinking and social interaction rather than physical abilities these results are robust to a variety of estimation strategies including using nlsy variables that control for worker quality and a worker msa fixed effect specification

minimum wages and the gender wage gap estimates are made of the effect of minimum wages on the size and composition of the gender wage gap in canada in 1986 it is found that minimum wages close the wage gap substantially for young workers and less so for adults the reduction in the gap is most attributable to the adverse employment effects of minimum wages the results also indicate that most of the reduction in the gap is realized through a fall in the discriminatory component

a theory of limited liquidity and large investors causing spikes in stock market volatility and trading volume we survey a theory of the economic underpinnings of the fat tailed distributions of a number of financial variables such as returns and trading volumes our theory posits that they have a common origin in the strategic trading behavior of very large financial institutions in a relatively illiquid market we show how the fat tailed distribution of fund sizes can indeed generate extreme returns and volumes even in the absence of fundamental news moreover we are able to replicate the individually different empirical values of the power law exponents foreachdistribution largeinvestorsmoderatetheirtradestoreducetheirpriceimpact coupled with a concave price impact function this leads to volumes being more fat tailed than returns but less fat tailed than fund sizes the trades of large institutions offer a unified explanation for apparently disconnected empirical regularities that are otherwise a challenge for economic theory jel g12 g14 g23

power laws in economics an introduction paul samuelson 1969 was once asked by a physicist for a law in economics that was both nontrivial and true this is a difficult challenge as many roughly true results are in the end rather trivial for example demand curves slope down while many nontrivial results in economics in fact require too much sophistication and rationality on the part of the agents to actually hold true in practice 1 samuelson answered the law of comparative advantage the story does not say whether the physicist was satisfied the law of comparative advantage is a qualitative law and not a quantitative one as is the rule in physics indeed many of the insights of economics seem to be qualitative with many fewer reliable

who pays for the minimum wage this paper analyzes the eects of a large 60 and persistent increase in the minimum wage instituted in hungary in 2001 we propose a new approach to estimating the employment eects of a minimum wage increase that exploits information on the distribution of wages before and after the policy change we infer the number of jobs destroyed by comparing the number of pre reform jobs below the new minimum wage to the excess number of jobs paying at and above the new minimum wage our estimates imply that the higher minimum wage had at most a small negative eect on employment and so the main eect was pushing up wages we then use data on a large panel of firms to evaluate the economic incidence of the minimum wage increase contrary to theoretical models that attribute the small employment eects of minimum wage changes to monopsonistic wage setting we find no evidence that the rise in the minimum wage led to lower profitability among low wage employers instead we find that the costs of the minimum wage were largely passed through to consumers

minimum wage effects on labor market outcomes under search matching and endogenous contact rates building upon a continuous time model of search with nash bargaining in a stationary environment we analyze the effect of changes in minimum wages on labor market outcomes and welfare although minimum wage increases may or may not lead to increases in unemployment in our model they can be welfare improving to labor market participants on both the supply and demand sides of the labor market we discuss identification of the model using current population survey data on accepted wages and unemployment durations and show that by incorporating a limited amount of information from the demand side of the market it is possible to obtain credible and precise estimates of all primitive parameters we show that the optimal minimum wage in 1996 depends critically on whether or not contact rates can be considered to be exogenous and we note that the limited variation in minimum wages makes testing this assumption problematic

the contribution of minimum wages to increasing wage inequality recent research has shown the reduction in the minimum wage to be the main cause of the rise in wage dispersion in the lower half of the wage distribution in the us during the 1980s however the return to human capital does not seem to have been much affected using new methodology this paper confirms previous conclusions regarding the wage distribution but shows that the return to human capital has also increased strongly a 10 reduction of the minimum wage causes the wage of someone earning the previous minimum to fall by 8 evidence in favour of a distance dependent elasticity of substitution dides production function there has been a massive increase in wage inequality in the us the 10 50 and 50 90 log wage differential grew by 0 10 and 0 06 respectively during the 1980s economists have tried to put their finger on the causes of this phenomenon wood 1995 believes globalisation to be the main cause however most empirical research suggests that international trade is only a small part of the explanation see freeman 1995 for a survey others hold skill biased technological progress responsible for example bound and johnson 1992 technology is always a kind of residual item for which appropriate variables are hardly available its impact is therefore difficult to pin down empirically autor et al 1998 have shown that the use of computers by industry is strongly correlated to the increase in the employment of college graduates dinardo et al 1996 called attention to the role of institutions in particular declining unionism and the fall in minimum wages during the 1980s they hold minimum wages responsible for 25 of the increase in wage dispersion pictures of the estimated density functions for the period 1973 90 show that minimum wages have had a large impact dinardo et al calculate the effect of minimum wages by assuming a change in the minimum wage to have no effect on the shape of the wage distribution to the right of the minimum at first glance the wage distributions plotted in their paper suggest that this assumption is not supported by the data implying that their estimate of 25 is a lower bound indeed applying a different methodology lee 1999 reached the conclusion that the decrease in minimum wages can explain virtually the whole increase in wage inequality he simply regresses 10 50 and 50 90 log wage differentials by year and state on the relevant minimum wage using state variation in minimum wages lee s results open the question as to what mechanism makes that minimum wages have so large an impact there are two potential channels either minimum

gibrat s law for all cities two empirical regularities concerning the size distribution of cities have repeatedly been established zipf s law holds the upper tail is pareto and city growth is proportionate census 2000 data are used covering the entire size distribution not just the upper tail the nontruncated distribution is shown to be lognormal rather than pareto this provides a simple justification for the coexistence of proportionate growth and the resulting lognormal distribution an equilibrium theory of local externalities that can explain the empirical size distribution of cities is proposed the driving force is a random productivity process of local economies and the perfect mobility of workers

patterns of technological competence accumulation a proposition for empirical measurement this article develops a typology that describes and measures different types of technological competence accumulation the notion of accumulation comprises not only the state but also the change in competence and hence it complies with the criticism of the static approaches to competence management the typology of competence accumulation enables a comparison of firm profiles that lead to identification of four groups of firm behavior across the telecommunications industry the relationship between the firm and the industry level is established on the condition that each firm s competence level depends on the firms mutual relationships with other firms in the same industry known as red queen evolution the four groups of firm behaviour are therefore not considered as groups of independent firms that are similar by coincidence but as patterns of behavior within the telecommunications industry which allows for a discussion of more general implications for management of technology copyright 2005 oxford university press

central place theory and city size distribution this paper proposes a theory of city size distribution via a hierarchy approach rather than the popular random growth process it does so by formalizing central place theory using an equilibrium entry model and specifying the conditions under which city size distribution follows a power law central place theory describes the way in which a hierarchical city system with difierent layers of cities serving difierently sized market areas is formed from a uniformly populated space the force driving the city size difierences in this model is the heterogeneity in economies of scale across goods the city size distribution under a central place hierarchy exhibits a power law if the distribution of scale economies is regularly varying which is a general class that encompasses many well known commonly used distributions this model is also consistent with a power law for flrms and a number average size rule which is the log linear relationship between the number and average size of the cities in which an industry is located

on the economic geography of international migration we exploit the bilateral and skill dimensions from recent data sets of international migration to test for the existence of zipf s and gibrat s laws in the context of aggregate and high skilled international immigration and emigration using graphical parametric and non parametric analysis the top tails of the distributions of aggregate and high skilled immigrants and emigrants adhere to a pareto distribution with an exponent of unity i e zipf s law holds we find some evidence in favour of gibrat s law holding for immigration stocks i e that the growth in stocks is independent of their initial values and stronger evidence that immigration densities are diverging over time conversely emigrant stocks are converging in the sense that countries with smaller emigrant stocks are growing faster than their larger sovereign counterparts lastly high skilled immigration and emigration stocks expressed in levels or as densities all exhibit signs of convergence we conclude by discussing some competing mechanisms that could be driving the observed patterns including differing fertility rates reductions in emigration restrictions migrant sorting and selective immigration policies immigrant networks and persisting wage differentials

beijing or shanghai the strategic location choice of large mnes host country headquarters in china we argue that a multinational enterprise s mne s location choice for its host country headquarters hchq in the geographic space of the host country is determined by the interplay between the strategic roles of hchq in the organizational space of the mne and the institutional space external and internal to the mne we focus on the location choice between beijing and shanghai we test our arguments using data for a sample of fortune global 500 corporations in china 1979 2005 this study contributes to international business ib research by reinvigorating research on hchq we also complement economic geography research on subnational agglomeration by using an ib perspective with a focus on the institutional idiosyncrasies of cities

of age sex and money insights from corporate officer compensation on the wage inequality between genders this paper shows that the gender and age of the wage setter are crucial determinants of the disparity in wages between sexes we document our findings using a data set on compensation of corporate officers that is uniquely suited for this analysis because officer wages are set by chief executive officers ceos we show that ceos pay officers of the opposite gender less than officers of their own gender even when controlling for job characteristics older and male ceos exhibit the greatest propensity to differentiate on the basis of sex female officers receive smaller raises if the firm is headed by a man our results suggest that ceo gender and age are economically more important determinants of officer compensation than are firm stock performance stock volatility or return on assets this paper was accepted by uri gneezy behavioral economics

spatial growth and industry age between 1970 and 2000 employment growth across u s counties exhibited very different patterns in manufacturing and services whereas manufacturing employment growth was negatively related to initial manufacturing employment across the entire distribution of counties service employment growth was positively related to initial service employment for intermediate sized counties this paper presents a theory to rationalize these facts local sectoral growth is driven by technological diffusion across space and depends on the age of the sector the theory correctly predicts the relation between county employment growth and initial county employment in manufacturing at the turn of the 20th century

the effects of the minimum wage on the employment and earnings of youth the employment and earnings effects of the minimum wage are estimated by parameterizing a hypothesized relationship between underlying market employment and wage relationships versus observed wage

minimum wages and labor market prospects of women in recent years the field of labor economics has witnessed growth of interest in causes and consequences of female labor force participation principal areas of research include determinants of female wages and labor supply many empirical issues remain unresolved and research continues to focus on the likely ranges of such parameters as the own wage elasticity of hours supplied the cross elasticity with respect to spouse s income the rate of return to female schooling and the issue of self selection in observed earnings of working women one area which remains relatively unexplored is the impact of minimum wage legislation on employment prospects of females the issue of minimum wages is of special interest in the case of women first the proportion of labor force nonparticipation by females exceeds that of males consequently institution of an effective minimum wage plays to a larger audience of nonparticipating females than males it is likely that a significant portion of the positive labor supply response to minimum wages is in the form of previously nonparticipating females second as is well known female wages tend to be lower than those of males owing in part to 1 lower levels of female schooling and experience 2 intermittent life cycle patterns of labor supply and human capital accumulation 3 sorting of females into occupations that are conducive to intermittent behavior and 4 as several researchers suggest gender discrimination consequently women are more likely than men to experience wages that fall short of the legal minimum this study examines the consequences of minimum wages on female employment prospects of special interest is the likelihood of successful job search for women whose wages in the absence of legislation would be below the minimum it is commonly argued that minimum wages in competitive labor markets have the effect of hindering employment prospects of low wage workers this study based on a sample of microdata from the public use sample of the 1980 census proposes a simple framework in which this issue can be addressed in the context of a conventional model of labor supply

a new approach to business fluctuations heterogeneous interacting agents scaling laws and financial fragility abstract in this paper we discuss a scaling approach to business fluctuations our starting point consists in recognizing that concepts and methods derived from physics have allowed economists to re discover a set of stylized facts which have to be satisfactorily accounted for in their models standard macroeconomics based on a reductionist approach centered on the representative agent is definitely badly equipped for this task on the contrary we show that a simple financial fragility agent based model based on complex interactions of heterogeneous agents is able to replicate a large number of scaling type stylized facts with a remarkable high degree of statistical precision

gale nikaido debreu and milgrom shannon communal interactions with endogenous community structures abstract this paper examines nash jurisdictional stability in a model with a continuum of agents whose characteristics are distributed over a unidimensional interval communal benefits and costs of each individual depend on her identity and the composition of the community which she belongs to since the framework is too general to yield an existence of nash equilibrium we introduce the essentiality of membership in one of the communities for all individuals we highlight the border indifference property bip when all individuals located on a border between two adjacent jurisdictions are indifferent about joining either of them and show that bip is a necessary condition for yielding a nash equilibrium we invoke the celebrated gale nikaido debreu lemma to guarantee the existence of a partition that satisfies bip we then proceed to demonstrate that bip is not sufficient to yield a nash equilibrium the equilibrium existence under bip is rescued when we use the milgrom shannon monotone comparative statics conditions

labour market institutions and employment in france the purpose of this paper is to use individual data to study how the minimum wage and the welfare system combine to affect employment in france using the 1997 labour force survey we decompose non employment of married women into three components voluntary classical due to the minimum wage and other a residual category we find that the minimum wage explains close to 15 of non employment for these women and that the disincentive effects of some welfare policy measures may be large our approach also allows us to evaluate various labour and welfare policy experiments in their effects on participation and employment copyright 2002 john wiley sons ltd

pareto and piketty the macroeconomics of top income and wealth inequality abstract since the early 2000s research by thomas piketty emmanuel saez and their coauthors has revolutionized our understanding of income and wealth inequality in this paper i highlight some of the key empirical facts from this research and comment on how they relate to macroeconomics and to economic theory more generally one of the key links between data and theory is the pareto distribution the paper describes simple mechanisms that give rise to pareto distributions for income and wealth and considers the economic forces that influence top inequality over time and across countries for example it is in this context that the role of the famous r g expression is best understood

revisiting the link between minimum wage and wage inequality empirical evidence from new zealand abstract this paper revisits the contentious link between the level of the minimum wage and wage inequality this is done utilizing the differential rates of minimum wage increase experienced by two age groups youth and adults in new zealand over the period 1997 to 2007

asset pricing in large information networks we study asset pricing in economies with large information networks we focus on networks that are sparse and have power law degree distributions in line with empirical studies of large scale social networks our theoretical framework yields a rich set of novel asset pricing implications we derive closed form expressions for price volatility profitability and trading volume as functions of the network topology we also study agent welfare and show that the network that optimizes total welfare is typically a uniform one with an intermediate degree of connectedness

disentangling the minimum wage puzzle an analysis of worker accessions and separations changes in the legislation in the mid 1980s in portugal provide remarkably good conditions for analysis of the employment effects of mandatory minimum wages as the minimum wage increased sharply for a very specific group of workers relying on a matched employer employee panel data set we model gross worker flows accessions and separations in continuing firms as well as in new firms and those going out of business using a count regression model applied to proportions employment trends for teenagers the affected group are contrasted to those of older workers before and after the raise in the youth minimum wage the major effect on teenagers of a rising minimum wage has been the reduction of separations from the employer which during the period under analysis has compensated for the reduction of accessions to new and continuing firms in this sense our results can reconcile some of the previous evidence in the empirical literature when analyzing the aggregate impact of the minimum wage on youth employment without decomposing it by type of worker flow jel d21 j23 j38

minimum wage laws are they overrated l minimum has been fixed in nominal terms at about 55 percent of the current average wage rising wages in the rest of the economy gradually erode the real minimum wage and eventually the process is repeated sometimes the increase in the nominal minimum is accompanied by a permanent reduction in those businesses exempted from the law proposals for a lower minimum wage for young workers or to index the minimum wage to the average wage have been debated but not adopted the minimum wage was last increased to 3 35 in 1981 since then average hourly wages have risen by 25 percent eliminating any momentum for a lower minimum wage for youth but reviving proposals for another increase in the nominal minimum economists are fascinated by the minimum wage because we have strong theoretical predictions about the direction of the effect of the minimum wage on employment and fairly widely accepted methods to estimate the size of that impact it probably didn t hurt that the earliest and later estimates lined up well with the predictions but that is not the only reason for our fascination with the topic depending on whether we include those who say they earn less than the minimum wage minimum wage workers account for 6 to 12 percent of those employed gilroy 1981 p 157 and less than 5 percent of wage and salary income the minimum wage gives economists a relatively rare opportunity to study the impact of an exogenous increase in the price of labor and thus a chance to refine our thinking

a microfoundation for normalized ces production functions with factor augmenting technical change based on a tractable endogeneous technology choice framework we provide a microfoundation for aggregate normalized constant elasticity of substitution ces production functions with non neutral factor augmenting technical change in this framework firms are allowed to choose unit productivities of capital and labor optimally from a technology menu constructed under the assumption that unit factor productivities ufps are independently weibull distributed the weibull distribution itself is also microfounded here based on extreme value theory it is found to be an accurate and robust approximation of the true ufp distribution if technologies consist of a large number of complementary components

institutional investors and stock market volatility statement of responsibility on t p reads xavier gabaix parameswaran gopikrishnan vasiliki plerou h eugene stanley

zipf s law for cities an explanation zipf s law is a very tight constraint on the class of admissible models of local growth it says that for most countries the size distribution of cities strikingly fits a power law the number of cities with populations greater than s is proportional to 1 s suppose that at least in the upper tail all cities follow some proportional growth process this appears to be verified empirically this automatically leads their distribution to converge to zipf s law

the minimum wage law and youth crimes time series evidence gtrowing evidence indicates that the federal minimum wage law has adversely affected the employment rate the labor force participation rate and on the job training of young workers 1 insofar as the minimum wage has adverse effects on youth labor markets it is also expected to affect the time spent in activities outside the labor market including criminal activities 2 little research has been done on the minimum wage

spikes and spill overs the impact of the national minimum wage on the wage distribution in a low wage sector the uk national minimum wage nmw has had a minimal impact on uk wage inequality because it has been set at a modest level and because aggregate evidence suggests very small spill over effects but the small spill over effects might be because of the small numbers of workers affected and widespread anticipation of the introduction of the nmw might make the impact effect appear very small this paper investigates these issues using data collected from care homes where the nmw affected 40 of workers but we still find no evidence of large spill over effects and very small amounts of anticipation of the nmw

the effect of information and communication technologies on urban structure this paper examines the effects of information and communication technologies ict on urban structure improvements in ict may lead to changes in urban structure for example because they reduce the costs of communicating ideas from a distance hence they may weaken local agglomeration forces and thus provide incentives for economic activity to relocate to smaller urban centres we use international data on city size distributions in different countries and on country level characteristics to test the effect of ict we find robust evidence that increases in the number of telephone lines per capita encourage the spatial dispersion of population in that they lead to a more concentrated distribution of city sizes so far the evidence on internet usage is more speculative although it goes in the same direction we argue that the internet is likely to have similar or even larger effects on urban structures once its use has spread more thoroughly through different economies

structural and frictional unemployment in an equilibrium search model with heterogeneous agents we specify and estimate an equilibrium search model with between market heterogeneity in the productivity levels the model allows for two types of unemployment unemployment due to search frictions and unemployment due to wage floors wage floors may exist because of large unemployment benefits or a binding mandatory minimum wage using data on labour market histories for a sample of dutch workers we decompose the total unemployment rate in a structural and frictional unemployment rate we also discuss the effect of changes in the minimum wage

market forces and ceo pay shocks to ceo demand induced by ipo waves i develop a simple competitive equilibrium model and derive the prediction that ceo pay size elasticity increases when more firms compete for an inelastic supply of managers using industry level ipo waves as a proxy for increased competition for ceos i find that pay size elasticity increases by 6 with a one standard deviation increase in ipo activity this effect is stronger in specialized industries in addition increased ipo activity leads to a greater likelihood of executive transitions between firms these findings indicate that market forces play a key role in the determination of ceo pay received august 6 2015 editorial decision september 24 2016 by editor francesca cornelli

a schumpeterian model of top income inequality top income inequality rose sharply in the united states over the last 40 years but increased only slightly in france and japan why we explore a model in which heterogeneous entrepreneurs broadly

the effects of minimum bargained wages on earnings evidence from spain abstract this paper provides an empirical evaluation of the effects of spanish sectoral collective bargaining on wages for this purpose we use a sample of workers for whom bargained wage rates and earnings are available using a variant of the meyer and wise approach we are able to estimate wage gains due to minimum bargained wages and their employment effects the most relevant conclusion is that there is evidence of a sword of justice effect by unions but this is limited by non compliance among unskilled workers and the non binding nature of bargained wages for skilled workers

the zipf s law and the effects of free trade the case of guatemala abstract the aim of this study is to investigate the impacts of trade policy changes on the order of the size of cities and economic growth of guatemala between 1921 and 2002 the pareto coefficient was estimated and an index was used to measure the degree of urban concentration finally a model of the impact of trade liberalization on economic growth was estimated the main results obtained showed a slight growth in inequality and divergence although the urban concentration index showed a gradual decline since 1964 the golden age of the cacm by the year 2002 it was found that the urban concentration has an inverse relationship with the commercial opening and positive economic growth during the period from 1921 to 1964 it was concluded that major cities reduced their growth and that small and medium sized cities grew at a faster rate than big cities driven by the growth of international trade

the dynamics of inequality the past forty years have seen a rapid rise in top income inequality in the united states while there is a large number of existing theories of the pareto tail of the long run income distributions almost none of these address the fast rise in top inequality observed in the data we show that standard theories which build on a random growth mechanism generate transition dynamics that are too slow relative to those observed in the data we then suggest two parsimonious deviations from the canonical model that can explain such changes scale dependence that may arise from changes in skill prices and type dependence that is the presence of some high growth types these deviations are consistent with theories in which the increase in top income inequality is driven by the rise of superstar entrepreneurs or managers

a note on the size distribution of cities over time abstract the pareto law of income distribution is applied to the analysis of city size structures particular concern is focused on the pareto coefficient as a measure of interurban concentration and on how this varies through time within a nation on the basis of evidence from 12 nations it is argued that over time a nation tends to display a u shaped pattern in the degree of interurban concentration and that the higher a nation s overall level of development the more advanced it will be in the sequence of concentration consideration is given to the possibility of supporting these conclusions through cross sectional analysis among nations the various bases for the proposed temporal pattern of concentration within a nation are then explored

from gibrat s law to zipf s law through cointegration abstract this article investigates the role of cointegration in the context of urban growth processes it proposes the use of cointegration tests to distinguish between two versions of gibrat s law a standard formalization with growth shocks that are iid across time and cities and an alternative one with shocks that are only iid over time it then shows that city size distributions converge to zipf s law under the standard version of gibrat s law in contrast they are perfectly preserved under the alternative formalization an empirical application to french data provides support for non cointegrated city growth and thus for the standard formalization

the long term effects of youth unemployment using nlsy data we examine the long term effects of youth unemployment on later labor market outcomes involuntary unemployment may yield suboptimal investments in human capital in the short run a theoretical model of dynamic human capital investment predicts a rational catch up response using semiparametric techniques to control for the endogeneity of prior behavior our estimates provide strong evidence of this response we also find evidence of persistence in unemployment combining our semiparametric estimates with a dynamic approximation to the lifecycle we find that unemployment experienced as long ago as ten years continues to affect earnings adversely despite the catch up response

migration selectivity and the effects of public programs abstract a model of the spatial distribution of mobile heterogeneous agents is formulated to assess how a price change or program subsidy that is location specific affects the composition of local residents via selective migration and thus biases evaluations of the effectiveness of the program based on its local consequences longitudinal data from colombia are used to test the implications of migration selectivity the findings confirm the existence of selective migration suggesting that local subsidies to human capital attract high income but within income groups low fertility households and those with low human capital endowments these migration patterns are shown to be consistent with the dominance of endowment over tastes heterogeneity in the population under plausible behavioral assumptions

urban concentration agglomeration economies and the level of economic development there is a view among planners in the developing nations that the process of economic development invariably results in the concentration of population in one or two primal cities there is also however considerable disagreement over whether this apparent relationship is either necessary or desirable proponents on the one hand argue that concentrated urbanization strongly supports industrial development through the realization of scale and agglomeration economies 2 dissenters from this view feel that urban concentration creates serious social costs and results more from historical or political forces than economic ones in this case policies aimed at decentralizing growth can achieve social objectives without sacrificing economic efficiency despite these deliberations it is surprising that there has been little or no empirical study of urban concentration on either a longitudinal or cross national basis the major related work which exists is williamson s research on economic development and income inequality 3 williamson demonstrates that as economic growth begins inequality initially increases but then diminishes in the more advanced stages of development this coincides with hirschman s4 view that industrialization eventually spreads into more backward areas reduc

the effect of minimum wages on low wage jobs we estimate the eect of minimum wages on low wage jobs using 138 prominent state level minimum wage changes between 1979 and 2016 in the u s using a dierence in dierences approach we first estimate the eect of the minimum wage increase on employment changes by wage bins throughout the hourly wage distribution we then focus on the bottom part of the wage distribution and compare the number of excess jobs paying at or slightly above the new minimum wage to the missing jobs paying below it to infer the employment eect we find that the overall number of low wage jobs remained essentially unchanged over the five years following the increase at the same time the direct eect of the minimum wage on average earnings was amplified by modest wage spillovers at the bottom of the wage distribution our estimates by detailed demographic groups show that the lack of job loss is not explained by labor labor substitution at the bottom of the wage distribution we also find no evidence of disemployment when we consider higher levels of minimum wages however we do find some evidence of reduced employment in tradable sectors we also show how decomposing the overall employment eect by wage bins allows a transparent way of assessing the plausibility of estimates