time out of work and skill depreciation this paper investigates the role of skill depreciation in the relationship between work interruptions and subsequent wages using swedish data from two waves 1994 and 1998 of the international adult literacy survey which included results of tests gauging respondents ability to read and make practical use of printed information the authors are able to analyze changes in individuals skills as a function of time out of work they find statistically strong evidence of a negative relationship between work interruptions and skills the analysis suggests that depreciation of general skills was economically important a full year of non employment for example was associated with a 5 percentile move down the skill distribution

cheap children and the persistence of poverty this paper develops a theory of fertility that offers an explanation for the persistence of poverty within and across countries if educated individuals have a comparative advantage in raising educated children then parental fertility choice is shown to give rise to a poverty trap in which the poor choose high fertility rates with low investment in child quality moreover the impact of child quality choice on economic performance is amplified by the diluting effect of higher fertility on physical capital accumulation the theory proposes insights regarding the effects of inequality globalisation and life expectancy on economic growth and demographic transitions this paper develops a theory of fertility and child educational choice that offers an explanation for the persistence of poverty within and across countries the joint determination of the quality education and quantity of children in a household is studied under the key assumption that individuals productivity as teachers increases with their own human capital in contrast the minimum time cost associated with raising a child regardless of the child s quality the quantity cost is not affected by parental education as a result the price of child quantity relative to the price of child quality increases with individuals wages in particular for low wage individuals for whom the opportunity cost of time is low children of minimal quality are cheap this assumption therefore generates a comparative advantage for the poor in child quantity whereas high wage educated individuals have a comparative advantage in raising quality children consistent with the well known evidence poor households thus choose relatively high fertility rates with relatively low investment in their offspring s education and therefore their offspring are poor as well in contrast high income families choose low fertility rates with high investment in education and therefore high income persists in the dynasty evidence from the us provided by hanushek 1992 suggests that a trade off between quantity and quality of children does indeed exist hanushek argues that movements in family size could explain over half the variance in some test scores and that the elasticity of achievements with respect to the number of children in the family is 0 03 implying that the annual achievement growth of each child in a family will fall about 2 when a second child is added and about 0 5 when a sixth child is added 1

earnings inequality and skill biased technological change with endogenous choice of education this article analyzes the impact of stochastic skill biased technological change on earnings inequality in a general equilibrium olg model wage dispersion is determined by the heterogeneity of skills by allowing for productivity differences due to education ability and age the model performs well in reproducing stylized facts on the time pattern of the u s wage distribution and human capital accumulation in particular it shows that slow adjustment of the supply of educated labor can itself explain the nonmonotonic time pattern of the college premium jel d31 j24 j31

migration policy african population growth and global inequality according to recent un projections more than 50 per cent of the growth in world population over the next half century will be due to population growth in africa given this any policy that influences african demography will have a significant impact on the world distribution of income in this study we discuss the potential for migration policies to affect fertility and education decisions and hence population growth in africa we present the results from different scenarios for more or less restrictive selective migration policies and derive their implications for the evolution of world inequality

skill biased technological knowledge without scale effects in the skill biased technological change literature the technological knowledge bias which drives wage inequality is determined by the market size channel motivated by the literature on scale effects since jones 1995a b the standard r d technology is modified so that wage inequality results similarly from the technological knowledge bias which is instead induced by the price channel thus by solving the transitional dynamics numerically it is shown that the recent rise of the skill premium which is highlighted by e g acemoglu 2002a arises from the price channel effect complemented with a mechanism that can be called technological knowledge absorption effect

international dimensions of obesity and overweight related problems an economics perspective obesity is a growing concern new world health organization who figures indicate that obesity is spreading around the world as a global epidemic according to the who there are more people suffering from overweight related problems than malnutrition globally there are more than 1 billion adults who are overweight and at least 300 million of them are clinically obese while 800 million suffer from malnutrition who 2004 the economic costs due to obesity can be burdensome currently in the united states medical costs associated with obesity and smoking account for about 9 each of all health expenditures finkelstein fiebelkorn and wang u s obesity attributable medical expenditures reached 75 billion in 2003 obesity however is important not only from an economic perspective but also from a social perspective the social consequences of obesity are serious and multiple studies have shown that obesity affects in a negative and statistically significant way personal and working relations earnings and wages particularly for females cawley overall obesity is a complex phenomenon several recent economic studies have explored the role of different cultural and sociodemographic factors on obesity rates leaving genetics aside obesity is caused by the consumption of too many calories and or low expenditures of calories i e low physical activity consequently most published economic research provided a justification for the increased growth of obesity rates by analyzing several factors that may contribute to this imbalance of caloric consumption and usage see chou grossman and saffer cutler glaeser and shapiro lakdawalla and philipson philipson and posner there are mainly two arguments that could justify the growth of overweight problems around the world some researchers argue that obesity growth is mainly due to a higher intake of calories while others state that obesity is mainly caused by a lower expenditure of caloies in daily activities in line with the calorie consumption argument cutler glaeser and shapiro stated that americans have become more obese over the past twenty five years primarily due to the consumption of more calories analyzing changes in food consumption between the mid 1970s and the mid 1990s for

product cycles endogenous skill acquisition and wage inequality this paper presents an endogenous product cycle overlapping generations model where the supply of skilled labour is endogenously determined this is used to examine how production shifts through imitation by developing countries affect the do mestic wage differential and supply of skilled labour in developed countries in the model production shifts increase the demand for researchers in developed countries and cause higher relative wages for skilled labour this leads to more individuals acquiring the skills as a consequence the model helps to explain the simultaneous increase in the domes tic wage gap and in the supply of skilled labour observed in developed countries jel classification f16 j31

a theory of the worst forms of child labour although intuitive and morally compelling a ban on the worst forms of child labour in poor countries is unlikely to be welfare improving we show that harmful forms of child labour have an economic role by maintaining wages for child labour high enough they allow human capital accumulation in poor countries unless appropriate mechanisms are designed to mitigate the decline in child labour wages caused by reduced employment options for children a ban on harmful forms of child labour will likely prove undesirable we perform our analysis within a simple model of parental investment in children s education

supply and demand allocation and wage inequality an international comparison an allocation model of workers differentiated by their field of study is developed to test whether international differences in the wage structure can be explained by differences in labour demand and supply in each country the model explicitly takes into account the effects of supply and demand shifts on the allocation structure to disentangle country specific differences in the recruitment for one occupation from real supply demand effects empirical results based on data for nine countries show that cross country differences in wage inequality explain at least two third of the differences in labour demand and supply

the race between man and machine implications of technology for growth factor shares and employment we examine the concerns that new technologies will render labor redundant in a framework in which tasks previously performed by labor can be automated and new versions of existing tasks in which labor has a comparative advantage can be created in a static version where capital is fixed and technology is exogenous automation reduces employment and the labor share and may even reduce wages while the creation of new tasks has the opposite effects our full model endogenizes capital accumulation and the direction of research towards automation and the creation of new tasks if the long run rental rate of capital relative to the wage is sufficiently low the long run equilibrium involves automation of all tasks otherwise there exists a stable balanced growth path in which the two types of innovations go hand in hand stability is a consequence of the fact that automation reduces the cost of producing using labor and thus discourages further automation and encourages the creation of new tasks in an extension with heterogeneous skills we show that inequality increases during transitions driven both by faster automation and introduction of new tasks and characterize the conditions under which inequality is increasing or stable in the long run

impacts on investments and transmission distribution loss through power sector reforms abstract this study analyses original panel data from 86 countries between 1985 and 2006 econometric methods were used to identify the effects of different policy devices of power sector reforms on performance indicators installed capacity per capita transmission and distribution loss in the countries analyzed the research findings suggest that reform variables such as the entry of independent power producers ipps unbundling of generation and transmission establishment of regulatory agencies and the introduction of a wholesale spot market are the driving forces of increasing generation capacity as well as reducing transmission and distribution loss in the respective regions in this study we can assume that firstly different electric industry s reform policies measures have different impacts on geographically and economically diverse countries secondly a country s state of economic development has a different impact on policy effects of reforms thirdly coexistent with independent regulatory agencies reform policy becomes more powerful in realizing sector performances

differences and changes in wage structures preface introduction and summary richard b freeman lawrence f katz 1 a comparison of changes in the structure of wages in four oecd countries lawrence f katz gary w loveman david g blanchflower 2 international differences in executive and managerial compensation john m abowd michael l bognanno 3 the gender earnings gap some international evidence francine d blau lawrence m kahn 4 international wage curves david g blanchflower andrew j oswald 5 the changing structure of male earnings in britain 1974 1988 john schmitt 6 real wages employment and wage dispersion in u s and australian labor markets robert g gregory francis vella 7 labor markets and economic growth lessons from korea s industrialization 1970 1990 dae il kim robert h topel 8 wage differentials in italy market forces institutions and inflation christopher l erickson andrea c ichino 9 the swedish wage structure the rise and fall of solidarity wage policy per anders edin bertil holmlund 10 getting together and breaking apart the decline of centralized collective bargaining richard b freeman robert s gibbons 11 earnings inequality in germany katharine g abraham susan n houseman 12 a comparative analysis of east and west german labor markets before and after unification alan b krueger jorn steffen pischke contributors author index subject index

occupational mobility and wage inequality in this article we argue that wage inequality and occupational mobility are intimately related we are motivated by our empirical findings that human capital is occupation specific and that the fraction of workers switching occupations in the u s was as high as 16 a year in the early 1970 s and had increased to 21 by the mid 1990 s we develop a general equilibrium model with occupation specific human capital and heterogeneous experience levels within occupations we find that the model calibrated to match the level of occupational mobility in the 1970 s accounts quite well for the level of within group wage inequality in that period next we find that the model calibrated to match the increase in occupational mobility accounts for over 90 of the increase in wage inequality between the 1970 s and the 1990 s the theory is also quantitatively consistent with the level and increase in the short term variability of earnings copyright wiley blackwell

firm heterogeneity in capital labour ratios and wage inequality author s leonardi marco abstract this paper documents the increasing dispersion of capital labor ratios across firms in the us and provides some empirical evidence of a positive correlation at the two digit industry level between the dispersion of capital labor ratios across firms and residual wage inequality to explain this empirical fact the paper adopts a search model where firms differ in their optimal capital investment the exogenous decline in the relative price of equipment capital makes the distributions of capital labor ratios more dispersed in a frictional labor market this force generates wage dispersion among identical workers ols estimates of the relationship between capital dispersion and the relative price of equipment capital support the main hypothesis of the model

the evolution of education a macroeconomic analysis between 1940 and 2000 there was a substantial increase in educational attainment in the united states what caused this trend we develop a model of human capital accumulation that features a nondegenerate distribution of educational attainment in the population we use this framework to assess the quantitative contribution of technological progress and changes in life expectancy in explaining the evolution of educational attainment the model implies an increase in average years of schooling of 24 which is the increase observed in the data we find that technological variables and in particular skill biased technical change represent the most important factors in accounting for the increase in educational attainment the strong response of schooling to changes in income is informative about the potential role of educational policy and the impact of other trends affecting lifetime income

solow and heterogeneous labour a neoclassical explanation of wage inequality this paper analyses the effect of human capital investments of heterogeneous individuals on the dynamics of the wage structure within a neoclassical growth model the accumulation of physical capital changes relative factor prices and thus incentives to acquire skills thereby altering the composition of the labour force without relying on exogenous shocks our framework generates dynamics that resemble important observations on wage inequality e g the non monotone evolution of the skill premium additional incorporation of wage rigidities emphasises the trade off between residual wage inequality and employment opportunities for unskilled labour that is consistent with country specific evidence the development of wage inequality and employment prospects by skills has been the subject of considerable theoretical and empirical research in recent years the great interest in this question is mainly due to two reasons first labour earnings constitute the major part of most households incomes and hence a change in the wage structure and or employment chances has important implications for overall income inequality second the behaviour of some variables measuring wage dispersion was quite surprising and hardly to reconcile with conventional explanations

income distribution and the process of development abstract this paper examines the evolution of the role of income distribution in the process of development it presents a unified model that encompasses the transition between distinct regimes that have characterized the relationship between income inequality and the process of development this unified modeling provides an intertemporal reconciliation for conflicting viewpoints about the effect of inequality on economic growth the classical approach which argues that inequality stimulates capital accumulation and economic growth and the modern approach which suggests in contrast that for sufficiently wealthy economies equality stimulates investment in human capital and economic growth

calories obesity and health in oecd countries theoretical models suggest that decisions about diet weight and health status are endogenous within a utility maximization framework in this article we model these behavioural relationships in a fixed effect panel setting using a simultaneous equation system with a view to determining whether economic variables can explain the trends in calorie consumption obesity and health in organization for economic cooperation and development oecd countries and the large differences among the countries the empirical model shows that progress in medical treatment and health expenditure mitigates mortality from diet related diseases despite rising obesity rates while the model accounts for endogeneity and serial correlation results are affected by data limitations

electric power sector reform liberalization models and electric power prices in developing countries an empirical analysis using international panel data this study aims to clarify whether the effects of electric power sector reforms should be different either across regions or between developing and developed countries an empirical model was analyzed to observe the impact of electric power prices on the selection of a liberalization model in the power sector this was achieved by the use of an ordered response fixed effect and a random effect model an instrument variable technique was also used to estimate the impact of the liberalization model on the electric power price this technique addressed the problems of simultaneity bias between the electric power price and the liberalization models selected these econometric models were designed using panel data from 78 countries in four regions developed countries asian developing countries the former soviet union and eastern europe and latin america for the period from 1985 to 2003 the research findings suggest that higher electricity prices are one of the driving forces for governments to adopt liberalization models however the development of liberalization models in the power sector does not necessarily reduce electricity prices in fact contrary to expectations there was a tendency for the price to rise in every market modeled

from physical to human capital accumulation inequality and the process of development this paper develops a growth theory that captures the replacement of physical capital accumulation by human capital accumulation as a prime engine of growth along the process of development it argues that the positive impact of inequality on the growth process was reversed in this process in early stages of the industrial revolution when physical capital accumulation was the prime source of growth inequality stimulated development by channelling resources towards individuals with a higher propensity to save as human capital emerged as a growth engine equality alleviated adverse effects of credit constraints on human capital accumulation stimulating the growth process this research develops a growth theory that captures the endogenous replacement of physical capital accumulation by human capital accumulation as a prime engine of economic growth in the transition from the industrial revolution to modern growth the proposed theory offers a unified account for the effect of income inequality on the growth process during this transition it argues that the replacement of physical capital accumulation by human capital accumulation as a prime engine of economic growth changed the qualitative impact of inequality on the process of development in the early stages of the industrial revolution when physical capital accumulation was the prime source of economic growth inequality enhanced the process of development by channelling resources towards individuals whose marginal propensity to save is higher in the later stages of the transition to modern growth as human capital emerged as a prime engine of economic growth equality alleviated the adverse effect of credit constraints on human capital accumulation and stimulated the growth process the proposed theory unifies two fundamental approaches regarding the effect of income distribution on the process of development the classical approach and the credit market imperfection approach 1 the classical approach was originated by smith 1776 and was further interpreted and developed by keynes 1920 lewis 1954 kaldor 1957 and bourguignon 1981 according to this approach saving rates are an increasing function of wealth and inequality therefore channels resources towards individuals whose marginal propensity to save 1 the socio political economy approach provides an alternative mechanism equality diminishes the tendency for socio political instability or distortionary redistribution and hence it stimulates investment and economic growth see the comprehensive survey of benabou 1996b

evolution and growth this paper presents an evolutionary growth theory that captures the interplay between the evolution of mankind and economic growth since the emergence of the human species this uni ed theory encompasses the observed evolution of population technology and income per capita in the long transition from an epoch of malthusian stagnation to sustained economic growth 2001 elsevier science b v all rights reserved jel classixcation b22 e10 o11 o14 o33 o40 j10 j13

the impact of obesity on wages abstract previous studies of the relationship between body weight and wages have found mixed results this paper uses a larger data set and several regres sion strategies in an attempt to generate more consistent estimates of the effect of weight on wages differences across gender race and ethnicity are explored this paperjnds that weight lowers wages for white females ols esti mates indicate that a difference in weight of two standard deviations roughly 65 pounds is associated with a difference in wages of 9 percent in absolute value this is equivalent to the wage effect of roughly one and a half years of education or three years of work experience negative cor relations between weight and wages observed for other gender ethnic groups appear to be due to unobserved heterogeneity i introduction several previous studies have found among females a negative cor relation between body weight and wages there exist three broad categories of ex planations for this finding the first explanation is that obesity lowers wages for example by lowering productivity or because of workplace discrimination the sec ond is that low wages cause obesity this would be true if poorer people consume

farm policies and added sugars in us diets abstract we examine how us farm policies for sweetener crops have affected the consumption and composition of sweeteners in the us diet r d expenditures have lowered the unit cost of commodities used in sweeteners but have generated more technical progress in corn than in sugar crops increasing use of corn in food production ceteris paribus commodity programs have raised the price of sugar and decreased the price of corn thus high fructose corn syrup hfcs became an inexpensive substitute for sugar in food from 1970 on however the effect of policy on ingredient prices has become less important over time today the farm value share in sweetened food is below 5 and hfcs is a specialized input in many food items with limited substitution possibilities the current link between us sweetener consumption and farm policy is weak recent evidence from other high income countries shows little relationship between sweetener consumption and sugar policies

intelligence social mobility and growth this study develops a model where the allocation of human resources intergenerational social mobility and technological growth are jointly determined high growth endogenously increases the equilibrium return to innate cognitive ability and makes the allocation of individuals depend more on innate ability and less on social background a social allocation based on innate ability and high growth will thus reinforce each other implying the possibility of multiple endogenous growth equilibria

the impact of education expansion on wage inequality abstarctthe findings on education expansion and income inequality have important implications for policymakers to implement effective policies to reduce income inequality this study attempts to explain how education expansion affects income inequality by education distribution and the rate of return to education we decompose the effect of education expansion on wage gaps into price effect and structure effect we compare the income inequality from 2002 to 2013 using the chinese household income project chip 2002 and chip2013 survey data and employ ffl decomposition method our findings suggest that income inequality increased in 2013 and that income inequality among the high income groups increased even more significantly the structure effect of education expansion on income inequality is negative when average education increases one year the income gap between 80th and 20th will decrease 1 2 in other words education expansion decreases income inequality by allowing a wide range of individuals t

changes in the structure of earnings during the polish transition abstract we document changes in the structure of earnings during the economic transition in poland we find that inequality in labor earnings increased substantially from 1988 to 1996 a common view is that the reallocation of workers from a public sector with a compressed wage distribution to a private sector with much higher wage inequality accounts for the bulk of increased earnings inequality during transition see e g the models of aghion and commander 1999 aghion philippe commander simon 1999 on the dynamics of inequality in the transition economics of transition 7 275 2898 and commander and tolstopiatenko 1998 commander simon tolstopiatenko andrei 1998 the role of unemployment and restructuring in the transition in commander simon ed enterprise restructuring and unemployment in models of transition the world bank washington pp 169 192 however our decomposition of the sources of the increase in inequality suggests that this compositional effect accounts for only 39 of the increase fully 52 of the increase is due to the increase in the variance of wages within sectors that is earnings inequality within both the private and public sectors grew substantially and by similar amounts this is consistent with prior work suggesting that even state owned enterprises in poland moved towards competitive wage setting as they restructured see e g pinto et al 1993 pinto brian belka marek krajewski stefan 1993 transforming state enterprises in poland evidence on adjustment by manufacturing firms brookings papers on economic activity 213 70 commander and dhar 1998 commander simon dhar sumana 1998 enterprises in the polish transition in simon commander ed enterprise restructuring and unemployment in models of transition the world bank washington pp 109 142 a substantial part of the increase in earnings inequality was between group due largely to increased education premiums however changes in inequality within education experience gender groups account for about 60 percent of the increase in overall earnings inequality the increases in within group inequality were very different across skill groups with much larger increases for highly educated workers these patterns hold in both the private and public sectors although increases in education premiums were somewhat greater in the private sector

does unmeasured ability explain the wage premium associated with technological change quantile regression analysis by using the quantile regressions of earnings equation we find that the educational wage premium is higher in industries with rapid technological change than in industries with slower technological change at every decile in the distribution of wage residuals the wage premium associated with the technological change is mostly explained by the returns to workers unobserved heterogeneities which are correlated with education rather than the rents of high tech industries

contracting productivity growth in this paper we analyze the interactions between growth and the contracting environment in the production sector allowing incompleteness in contracting implies that viable production relationships for firms and workers and therefore the profitability of industries depend on the rates of innovation and growth the speed at which new innovations arrive in turn depends on the profitability of production for the usual reasons examined in the endogenous growth literature we show that these interactions can have important implications which are consistent with observed phenomena in both the micro and macro environment in particular we demonstrate that a technological shock increasing productivity of research can through this interaction lead to a productivity slowdown and a shift in labor market contracts away from firms providing implicit guarantees of lifetime employment and towards shorter term contractor type arrangements we show the consistency of an increase in the proportion of the labor force under short term employment increased relative returns of workers in high productivity sectors and increased income inequality with a productivity slowdown of finite duration

ability biased technological transition wage inequality and economic growth thispaper develops a growthmodel characterizedbyability biasedtechnological transition in which the evolution of technology education attainment and wage inequality is consistent with the observed pattern in the united states and other advanced countries over the past several decades it argues that an increase in the rate of technological progress raises the return to ability and simultaneously generates an increase in wage inequality between and within groups of skilled and unskilled workers an increase in average wages of skilled workers a temporary decline in average wages of unskilled workers an increase in education and a productivity transitory slowdown

the diffusion of computers and the distribution of wages abstract when the costs are decreasing workers adopt technology at the point where the costs equal the increased productivity output per worker increases immediately while productivity benefits increase only gradually if costs continue to fall as a result workers in computer adopting labor market groups experience an immediate fall in wages due to increased supply on the other hand adopting workers experience wage increases with some delay this model explains why increased computer use does not immediately lead to higher wage inequality more specifically the results of the model are shown to be consistent with the question why within group wage inequality among skilled workers as a result of computer technology adoption in the united states increased in the 1970s while between group wage inequality and within group wage inequality among the unskilled did not start to increase until the 1980s the model also predicts that the more compressed german wage structure leads to a lagged diffusion of computer technology along with smaller changes in wage inequality our empirical analysis suggests that this is consistent with the actual developments in germany since the 1980s finally the theoretical predictions seem to be of the right magnitude to explain the empirical quantities observed in the data

demise of the standard model for power sector reform and the emergence of hybrid power markets following earlier reforms in the power sectors of industrialized countries and emerging markets e g chile developing countries were encouraged to unbundle their electricity industries and to introduce competition and private sector participation this paper highlights the developments that led to how power sector reform came to be defined as a standard model and theoretical framework in its own right and how the model was used prescriptively in many developing countries however we also show that after more than 15 years of reform efforts this new industry model has not fully taken root in most developing countries finally we identify and characterize the emergence of new hybrid power markets which pose fresh performance and investment challenges

government spending composition technical change and wage inequality in this paper we argue that government spending played a significant role in stimulating the wave of innovation that hit the u s economy in the late 1970s and in the 1980s as well as the simultaneous increase in inequality and in education attainments since the late 1970s u s policymakers began targeting commercial innovations more directly and explicitly we focus on the shift in the composition of public demand toward high tech goods which by increasing the market size of innovative firms functions as a de facto innovation policy tool we build a quality ladders non scale growth model with heterogeneous industries and endogenous supply of skills and show that an increase in the technological content of public spending stimulates r d raises the wage of skilled workers and at the same time stimulates human capital accumulation a calibrated version of the model suggests that government policy explains between 12 and 15 of the observed increase in wage inequality in the period 1976 1991 jel e62 j31 o33 o41

investment security of supply and sustainability in the aftermath of three decades of power sector reform the last three decades have witnessed many electricity industry reform processes in more than half of the countries in the world the reforms have aimed inter alia at encouraging private investments in electricity infrastructure enhancing security of electricity supply and making power industry operate in line with the requirements of the sustainable development using an original panel dataset from 55 developed and developing countries covering the period from 1975 to 2010 this study aims at finding out to what extent these objectives have been materialized so far econometric models are used to identify the effects of electricity market liberalization on these variables the research findings suggest that the progress toward the electricity market reform is associated with a decline in private investments in the electricity industries of developing countries higher levels of self sufficiency in electricity supply and lower co2 emissions from electricity generation

wage curve analyses of establishment data from western germany using the iab establishment panel which is representative for western germany the authors find that establishment level wages reacted to variations in the regional unemployment rate the elasticity of wages with respect to unemployment they estimate was about 0 1 this responsiveness of the wage to regional variation is close to estimates found by other researchers using individual rather than establishment data for other countries and contradicts the view that germany s labor market largely due to the nature of collective bargaining in that country is relatively inflexible possible explanations for this finding are that the negotiated wage is treated like a minimum wage with firms deviating from it in order to increase work effort bargaining between firms and individual workers or between firms and works councils produces wage differences or collective agreements do not restrict firms to the extent that is often assumed

industrial shift skill mismatch and income inequality a decomposition analysis of changing distributions in the oslo region this paper examines changing income inequality in the oslo region between 1993 and 2000 adopting a decomposition approach the analysis reveals that both earnings inequality and post tax inequalit

public spending on education and the incentives for student achievement we build a model where homogeneous workers can accumulate human capital by investing in education schools combine public resources and individual effort to generate productive skills if skills are imperfectly compensated then in equilibrium students may under invest in effort we examine the effect on human capital accumulation of three basic education finance policies increased tuition subsidies may not be beneficial because they increase enrolment but they may lower the incentives for student achievement hence the skill level policies directed at enhancing the productivity of education or making degrees more informative are more successful at improving educational outcomes

farm subsidies and obesity in the united states national evidence and international comparisons abstract many commentators have claimed that farm subsidies have contributed significantly to the obesity epidemic by making fattening foods relatively cheap and abundant but u s farm policies have generally small and mixed effects on farm commodity prices which in turn have even smaller and still mixed effects on the relative prices of more and less fattening foods other factors have had much more influence on reducing the farm prices of food commodities and the consumer prices of food such that any effects of u s farm policies on u s obesity patterns must have been negligible moreover while many arguments can be made for changing u s farm subsidies even entirely eliminating the current programs could not be expected to have a significant influence on obesity rates international evidence reinforces this finding the countries that support their farmers most strongly tend to have relatively low obesity rates in these countries the main support for farmers comes through trade barriers and higher consumer prices which like u s policies for sugar dairy orange juice and beef discourage consumption and reduce obesity in contrast with agricultural subsidies agricultural r d has had a significant effect in the past on the relative price of food commodities and food and has the potential to influence obesity patterns in the future but r d policy is a very blunt instrument for pursuing public health policy objectives

anonymity efficiency wages and technological progress although the industrial revolution is often characterized as the culmination of a process of commercialisation the precise nature of such a link remains unclear this paper provides an analysis of one such link the role of commercialisation in raising wages as impersonal labour market transactions replace personalized customary relations in the presence of an aggregate capital externality we show that the resulting shift in relative factor prices will under certain conditions lead to higher capital intensity in the production technology and hence a faster rate of technological progress we provide historical evidence using european data to show that england was among the most urbanized and the highest wage countries at the onset of the industrial revolution the model highlights the effects of changes in the availability of information typical of a modernising country on efficiency wages and technological progress

educational opportunity and income inequality affordable higher education is and has been a key element of social policy in the united states with broad bipartisan support financial aid has substantially increased the number of people who complete university generally thought to be a good thing we show however that making education more affordable can increase income inequality the mechanism that drives our results is a combination of credit constraints and the signaling role of education first explored by spence 1973 when borrowing for education is difficult lack of a college education could mean that one is either of low ability or of high ability but with low financial resources when government programs make borrowing easier or tuition more affordable high ability persons become educated and leave the uneducated pool driving down the wage for unskilled workers and raising the skill premium

wage inequality and varieties of capitalism this article draws on a new data set that enables the authors to compare the distribution of income from employment across oecd countries specifically the article conducts a pooled cross sectional time series analysis of the determinants of wage inequality in sixteen countries from 1973 to 1995 the analysis shows that varieties of capitalism matter the authors find that the qualities that distinguish social market economies from liberal market economies shape the way political and institutional variables influence wage inequality of particular interest to political scientists is the finding that the wage distributive effects of government partisanship are contingent on institutional context union density emerges in the analysis as the single most important factor influencing wage inequality in both institutional contexts

project cost comparison under the clean development mechanism to inform investment selection by industrialized countries this is the first study that comprehensively evaluates and compares the average costs of six types of 4061 registered clean development mechanism cdm projects the projects were conducted from 2005 to 2014 by industrialized countries investing in host countries that had various technology and income levels specifically this study compares the average costs of emission reduction for each type of project projects were used by industrialized countries to achieve specific emission reductions commitments the lowest average cost per ton of reduced emissions found in renewable energy projects fuel switch projects supply side energy efficiency improvements and demand side energy efficiency improvements all of which were effectively reduced emissions by less than 1 million tons in host countries with high technology levels and upper medium income levels the average cost for the other two project types methane reduction and methane avoidance showed that these projects were more effective at reducing emissions by more than 50 million tons in host countries with upper middle technology levels and upper medium income levels these lowest average costs for different project types can guide project selection by industrialized countries seeking the lowest total emission reduction costs selection of cdm project investments by industrialized countries should account not only for the technology and income levels of host countries but also for the amounts by which industrialized countries have committed to reducing their emissions

das human kapital a theory of the demise of the class structure this paper suggests that the demise of the capitalists workers class structure was a socio economic transformation orchestrated by the capitalists in reaction to the increasing importance of human capital in sustaining their profit rates physical capital accumulation in the process of industrialization enhanced the importance of human capital in production and generated incentives for capitalists to support the provision of public education for the masses triggering the demise of the existing class structure the implications of the theory are consistent with the voting patterns on england s education reform of 1902

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

household food expenditures parental time allocation and childhood overweight an integrated two stage collective model with an empirical application and test this article develops a two stage collective household production model for household food expenditures parental time allocation and childhood overweight the model fills four gaps in the literature i the black box treatment of intrahousehold decision making ii exclusion of the child s decision input iii exclusion of noneconomic variables and iv absence of theory supported instrument identification the traditional unitary household production model with children is a special case of the model developed using a unique data set the unitary model is rejected there are important differences in the policy implications to be drawn from both models based on the data set used

optimal higher education enrollment and productivity externalities in a two sector model abstract we analyze the optimal share of the skilled workforce over the course of development with two sectors using skilled and unskilled labor respectively and technological spillovers from higher education enrollment productivity in each sector depends on the average quality of workers and the size of the workforce when skill biased technological change prevails this structure of externalities coupled with the endogenous ability sorting of workers may well produce a pattern of overenrollment in early and late stages of development and underenrollment in between our normative analysis is followed by a positive analysis exploring how policy would differ under alternative political objectives

finance inequality nexus the long and the short of it financial development affects income inequality differently in the short and in the long term investigating oecd countries from 1870 2011 we find in the short run an improvement in financial development tends to reduce inequality while in the long run more finance contributes to more inequality the short run effect concurs with theories advocating financial development increases the availability of financial services primarily for the poor however this effect becomes nil within a few years results thus imply that policies aimed at reducing inequality through improving access of the poor to finance need to be carefully designed to ensure longevity of impact

income distribution factor endowments and trade openness abstract this paper studies the empirical links among factor endowments trade and personal income distribution by using panel data we show that land and capital intensive countries have a less equal income distribution while skill intensive countries have a more equal income distribution we also show that the effects of trade openness on inequality depend on factor endowments in a way consistent with several recent case studies but not with the simple hecksher ohlin framework our results are robust to the division of the sample according to level of income the inclusion of different regressors the use of different measures of trade openness and of relative factor abundance and tests for possible problems of endogeneity

trends in quality adjusted skill premia in the united states 1960 2000 this paper presents new evidence that increases in college enrollment lead to a decline in the average quality of college graduates between 1960 and 2000 resulting in a decrease of 8 percentage points in the college premium the standard demand and supply framework katz and murphy 1992 card and lemieux 2001 can qualitatively account for the trend in the college and age premia over this period but the quantitative adjustments that need to be made to account for changes in quality are substantial furthermore the standard interpretation of the supply effect can be misleading if the quality of college workers is not controlled for to illustrate the importance of these adjustments we reanalyze the problem studied in card and lemieux 2001 who observe that the rise in the college premium in the 1980s occurred mainly for young workers and attribute this to the differential behavior of the supply of skill between the young and the old our results show that changes in quality are as important as changes in prices to explain the phenomenon they document

exploring the impact of trade and investment on income inequality a cross national sectoral analysis of the developed countries this article explores the relationship between international integration and domestic inequality in the developed countries in the mid 1980s and early 1990s the analysis examines two major modes of integration trade and direct investment disaggregating each by economic sector and distinguishing between imports and exports and inbound and outbound flows and stocks in measuring income inequality extensive use is made of micro data sets that have recently become available through the luxembourg income study lis which provides much more detailed and comparable data on income inequality than has heretofore been the case in particular lis data can be aggregated at the level of economic sector and permit the comparison of pre and post government income the study finds few significant relationships between either trade or investment and sectoral income distribution the overall conclusion is that economic globalization is not a critically important factor in explaining recent trends in income inequa

disaggregated wage curves in the united states evidence from panel data of young workers the paper presents wage curve results disaggregated over time by individual characteristics occupations industries and regions in the united states using a panel data set of young workers the results suggest that instead of a strong aggregate wage curve there are a number of different wage curves over time and for different worker groups the slope of the aggregate wage curve varies over time with the strongest wage curves in the late 1980s wage curves exist for most labour market groups the wages of the least educated hispanics those in relatively low skill occupations or service industries are most sensitive to changes in unemployment wages of government workers and those in the mining industry increase with unemployment finally wage curves are steepest in the western states

the causes of childhood obesity a survey childhood obesity rates are rapidly rising in many countries since it is highly likely that obesity will persist into adulthood current rates undermine the health and future of people in developed as well as developing countries this public health epidemic carries significant economic social as well as individual level consequences and has become a research topic of significant interest for various disciplines including economics we survey the literature in economics and related disciplines associated with the causes of childhood obesity and synthesize the results to provide a better understanding of the explanations for the rising childhood obesity rates this is an important step in crafting effective policies to combat global childhood obesity trends

effects of regulatory reforms in the electricity supply industry on electricity prices in developing countries electric power sector reforms in the electricity supply industry have had an impact on industrial and household prices in developing countries in latin america the former soviet union and eastern europe using original panel data for 83 countries during the period from 1985 to 2002 we examine how each policy instrument of the reform measures influenced electricity prices for countries in the above regions we found that variables such as entry of independent power producers ipp unbundling of generation and transmission establishment of a regulatory agency and the introduction of a wholesale spot market have had a variety of impacts on electricity prices some of which were not always consistent with expected results the research findings suggest that neither unbundling nor introduction of a wholesale pool market on their own necessarily reduces the electric power price in fact contrary to expectations there was a tendency for the price to rise however coexistent with an independent regulator unbundling may work to reduce electricity prices privatization and the introduction of foreign ipp and retail competition lower electricity prices in some regions but not all

winners and losers a micro level analysis of international outsourcing and wages our paper investigates the link between international outsourcing and wages utilizing a large household panel and combining it with industry level information on industries outsourcing activities from input output tables this approach avoids prob lems such as aggregation bias potential endogeneity bias and poor skill definitions that commonly hamper industry level studies we find that outsourcing has had a marked impact on wages applying two alternative skill classifications we find evidence that a 1 percentage point increase in outsourcing reduced the wage for workers in the lowest skill categories by up to 1 5 while it increased wages for high skilled workers by up to 2 6 this result is robust to a number of different specifications jel classification f16 j31 gagnants et perdants une analyse micro economique de la sous traitance internationale et des salaires ce memoire etudie le lien entre la sous traitance internationale et les salaires a l aide de donnees d un grand panel de menages qu on combine avec des donnees au niveau des industries sur les activites de sous traitance de celles qui en font obtenues des tableaux interindustriels cette approche evite les problemes qui habituellement polluent les etudes au niveau de l industrie biais d agregation biais d endogeneite potentielle mauvaises definitions des habiletes on decouvre que la sous traitance a un effet sur les salaires a l aide de differentes formes de classification des habiletes il appert qu un point de pourcentage d augmentation dans la sous traitance reduit les salaires des travailleurs dans les categories d habilete les plus basses de 1 5 alors qu il accroit les salaires de travailleurs specialises de 2 6 ce resultat est robuste et avere meme quand on utilise diverses specifications

welfare state retrenchment revisited entitlement cuts public sector restructuring and inegalitarian trends in advanced capitalist societies in recent years it has become commonplace for comparativists to emphasize the resilience of welfare states in advanced capitalist societies and the failure of neoliberal efforts to dismantle the welfare state challenging some tenets of the resilience thesis this article seeks to broaden the discussion of welfare state retrenchment the authors argue that a sharp deceleration of social spending has occurred in most oecd countries since 1980 that welfare states have failed to offset the rise of market generated inequality and insecurity and that welfare programs have become less universalistic they stress the distributive and political consequences of market oriented reforms of the public sector

technical progress and early retirement this paper claims that technical progress induces early retirement of older workers it presents a model where human capital is technology specific so that technical progress erodes some existing human capital this affects mostly older workers who have a smaller incentive to learn the new technology since their career horizon is shorter hence they tend to work less we find support to this erosion effect in hrs data which shows that retirement and unemployment of older workers are positively related to technical progress in their sectors unlike the effect across sectors the model is ambiguous about the aggregate effect of technical progress on labor supply of older workers while in sectors with many innovations it falls due to the erosion effect in other sectors it increases due to higher wages to examine which effect dominates we run a time series test using us data and find that the rate of average technical progress reduces aggregate labor force participation by the old namely the erosion effect dominates

a novel power market clearing model based on the equilibrium principle in microeconomics abstract clean energy dominant and electricity centric is the inevitable trend of the future energy development electric power industry has entered into an increasingly competitive era in recent years due to the deregulation of power systems however power market should not be fully competitive and need to be regulated strictly to satisfy the safe and reliable operation of power systems base on the market equilibrium principle in microeconomics a novel power market clearing model with limited competition was put forward in which the limited competition power satisfies the power flow adjustment and the network losses distribution further the free transaction ratio which can be regarded as the measurement of the degree of power market deregulation was analyzed according to the formulated market clearing model finally three case studies were made on the ieee 30 test system to verify the practicality and efficiency of the method the results show that different transaction ratio has significant influence on the operation of power systems and the optimal transaction ratio can be determined

wage inequality and the new economy many economists have argued that the observed increase in wage inequality in developed economies over the past 30 years is due to skill biased technical progress in this paper we put forward a somewhat different technology based argument namely that the increased inequality was caused by technical change linked to the pervasive innovation wave associated with the new economy this technical change was not skill biased in the usual sense but rather raised the reward to adaptability this alternative approach based on the notion of general purpose technology can shed light on a number of outstanding puzzles on the evolution of wage inequality both between and within educational groups

college entry by blacks since 1970 the role of college costs family background and the returns to education college enrollment of black 18 19 year old high school graduates declined from 1980 through 1984 and then rebounded after 1984 this paper presents data from a time series of cross sections of 18 19 year old youths from 1973 through 1988 to test the role of family background direct college costs local economic conditions and returns to college in driving these trends the evidence suggests that on the one hand increases in direct college costs were driving enrollment rates downward throughout the eighties on the other hand dramatic increases in average parental education for black youths exerted upward pressure on college enrollment by blacks particularly in the latter half of the decade the net effect of these two factors contributed to the pattern of decline and recovery observed during the eighties

monetary union and wage bargaining institutions in the eu extrapolating from some member state experiences this article considers the question of how monetary union in the eu is likely to impact the preferences of governments employers and unions regarding the organization of wage bargaining european monetary union involves a decentralization of wage bargaining centered at the national level in relation to monetary policy centralized at the european level drawing on recent literature and on the experience of two member states italy and spain which prior to emu underwent periods of intense bargaining fragmentation the author argues that the imposition of restrictive monetary policy in a fragmented wage bargaining context in which workers nonetheless have substantial bargaining rights tends to have perverse effects these effects ultimately led governments and bargaining actors in italy and spain to seek a reorganization of bargaining that gave national actors greater control over wage setting the article considers to what extent a similar dynamic might play out in the euro zone

globalization and the great u turn income inequality trends in 16 oecd countries the debate on the resurgence of income inequality in some advanced industrial societies has often focused on the impact of an increasingly integrated world economy typified by growing capital mobility heightened international competition and an increase in migration this study represents one of the first systematic cross national examinations of the role of globalization in the inequality u turn results indicate on the one hand that total inequality variation is principally affected by the percentage of the labor force in agriculture followed by the institutional factors union density and decommodification and only then by globalization on the other hand longitudinal variation in inequality while still dominated by the percentage of the labor force in agriculture is also principally affected by aspects of globalization such as southern import penetration and direct investment outflow and to a lesser extent by migration in other words globalization explains the longitudinal trend of inc

role of parental income in educational attainment during the post world war ii era u s governmental policy has often been based on the idea that in the absence of government action access to college and to a lesser extent high school education may be limited because of liquidity constraints the federal and state and local governments have instituted a number of policies to overcome these constraints these policies include the basic opportunity grants loan programs that have been issued at or below market interest rates the expansion of state supported colleges that charge below market tuitions rates and the inception and expansion of local community or county colleges that also charge below market tuition rates while there may be noneconomic reasons that explain these changes or their magnitude economic reasons that rely on differences between private and social costs and benefits can also be advanced these include a wiser societal choices made by a more educated society b recoupment of social costs from higher tax revenues c the reduction of private risks from lending arising from the pooling of risks thereby making the social supply of funds curve available to all individuals at the social discount rate and d state and local economic development reason c implies that in the absence of governmental initiative some children would be restricted from achieving their socially optimal amount of education because parents income and wealth limit their children s choices gary becker 1975 arthur okun 1975 and jere behrman and myself 1985 argue that governmental policy to reduce private borrowing costs to the level of social costs reduces inefficiency while increasing equity a rare result in the realm of economics in this paper i consider why parental income might influence offspring s educational attainment and the policy implications of such an influence

retail competition in electricity markets abstract the introduction of competition into retail electricity supply gave rise to great expectations however to date its performance has proven less than stellar owing primarily to the theoretical concepts underpinning this reform which draw heavily on the austrian school neither consumers decision processes nor this sector s technical paradigm were adequately accounted for leading to an uncorrect estimation of the expected impact of opening to competition short and medium term prospects for the evolution of retail markets must be reconsidered from the perspective of greater stability not a generalization of competition but rather a persistent segmentation between active and inactive clients not a large and rapid diffusion of radical innovations in commercialisation with the potential for undermining the incumbents positions

us europe differences in technology driven growth quantifying the role of education abstract european economic growth has been weak compared to the us since the 1980s in previous work krueger and kumar 2003 nber working paper no 9410 we argued that the european focus on specialized vocational education might have been effective during the 1960s and 1970s but resulted in a growth gap relative to the us during the subsequent information age when new technologies emerged more rapidly in this paper we extend our framework to assess the quantitative importance of education policy when compared to labor market rigidity and product market regulation other policy differences more commonly suggested to be responsible for us europe differences a decomposition exercise using a calibrated version of our model assigns a major role to education policy in explaining us europe growth differences

inequality and city size between 1979 and 2007 a strong positive monotonic relationship between wage inequality and city size has developed this paper investigates the links between this emergent city size inequality premium and the contemporaneous nationwide increase in wage inequality after controlling for the skill composition of the workforce across cities of different sizes we show that at least 23 percent of the overall increase in the variance of log hourly wages in the united states from 1979 to 2007 is explained by the more rapid growth in the variance of log wages in larger locations relative to smaller locations this influence occurred throughout the wage distribution and was most prevalent during the 1990s more rapid growth in within skill group inequality in larger cities has been by far the most important force driving these city size specific patterns in the data differences in the industrial composition of cities of different sizes explain up to one third of this city size effect these results suggest an important role for agglomeration economies in generating changes in the wage structure during the study period

income distribution and macroeconomics this paper analyzes the role of wealth distribution in macroeconomics through investment in human capital it is shown that in the presence of credit markets imperfections and indivisibilities in investment in human capital the initial distribution of wealth affects aggregate output and investment both in the short and in the long run as there are multiple steady states this paper therefore provides an additional explanation for the persistent differences in per capita output across countries furthermore the paper shows that cross country differences in macroeconomic adjustment to aggregate shocks can be attributed among other factors to differences in wealth and income distribution across countries

sources of earnings inequality estimates from an on the job search model of the us labor market since the early 1980s the labor market in the united states has seen a substantial increase in earnings dispersion we study the issue by developing an on the job search model of the us labor market that allows for wage and employment mobility as a result of optimal individual behavior we estimate its structural parameters on psid data at different points in time to clarify the sources of the evolution of earnings inequality and instability between 1987 and 1996 this procedure allows to compute lifetime measure of inequality on top of the usual cross sectional measure of inequality and provide counterfactual experiments that evaluate the contribution of different parameters to changes over time by taking into account some equilibrium effects we find that the increase in lifetime inequality and in cross sectional inequality have been generated by different sources and that these sources are different by skills changes in the wage offer distribution are the main determinant of the increase in inequality for skilled workers while both mobility changes and wage offer distribution changes are needed to explain changes for the unskilled

financial development and wage inequality theory and evidence we argue that financial market development contributed to the rise in the skill premium and residual wage inequality in the us since the 1980s we present an endogenous growth model with imperfect credit markets and establish how improving the efficiency of these markets affects modes of production innovation and wage dispersion between skilled and unskilled workers the experience of us states following banking deregulation provides empirical support for our hypothesis we find that wages of college educated workers increased by between 0 5 1 2 following deregulation while those of workers with a high school diploma fell by about 2 2 similarly residual or within group inequality increased the 90 50 percentile ratio of residuals from a mincerian wage regression and their standard deviation increased by 4 5 and 1 8 respectively

centralization of bargaining and wage inequality a correction of wallerstein wage inequality is a subject of intense political and substantive concern and di erencesin the extent of wage inequality between the anglo american economies and those of con tinental europe animate public and scholarly discussion the wide earnings di erentialsobserved in the united states and the united kingdom are commonly justi ed as the properand necessary incentives for a mature growth oriented economy the narrower income dif ferentials encountered in continental europe are rationalized as necessary for the protectionof the less well paid and the integrity of the social fabric the upward secular trend in wageinequality in the us since the 1970s which is a stark reversal of the pattern observed duringthe preceding 40 years is also a topic attracting wide public and scholarly attention despite the importance of the subject and the amount of attention that it has received the extensive literature on the economic impact of wage bargaining institutions in advanceddemocratic societies contains only a few widely accepted ndings one of these is that morecentralized bargaining institutions strongly encourage wage equality no less an authoritativeorgan than the oecd notes for instance that there is a fairly robust relation betweencross country di erences in earnings inequality and bargaining structures oecd 1997 p 64 several well designed country speci c studies support the claim that the system ofcollective bargaining is a major determinant of variations in the extent of wage inequality hibbs and locking 1996 2000 erickson and ichino 1995 yet even the most careful andwell executed country level results may be a ected by idiosyncratic country speci c factors evidence at the cross national level is required the most careful and convincing cross national empirical documentation of the link between centralized bargaining institutionsand wage inequality appears in wallerstein 1999 published in this journal

understanding the evolution of the us wage distribution a theoretical analysis in this paper we propose an analytically tractable overlapping generations model of human capital accumulation and study its implications for the evolution of the us wage distribution from 1970 to 2000 the key feature of the model and the only source of heterogeneity is that individuals differ in theirabilitytoaccumulatehumancapital therefore wageinequalityresultsonlyfromdifferencesin human capital accumulation we examine the response of this model to skill biased technical change sbtc theoretically we show that in response to sbtc the model generates behavior consistent with some prominent trends observed in the us data including i a rise in overall wage inequality both in the short run and long run ii an initial fall in the education premium followed by a strong recovery leading to a higher premium in the long run iii the fact that most of this fall and rise takes place among younger workers iv a rise in within group inequality v stagnation in median wage growth and a slowdown in aggregate labor productivity and vi a rise in consumption inequality that is much smaller than the rise in wage inequality these results suggest that the heterogeneity in the ability to accumulate human capital is an important feature for understanding the effects of sbtc and interpreting the transformation of the us labor markets since the 1970s jel e21 e24 j24 j31

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

education technologies wages and technological progress abstract we analyze the worker s incentives to acquire skills under technological progress when the costs of education are endogenous and depend on the wage distribution we show that the agent s intergenerational elasticity of substitution plays then a relevant role in determining how incentives and the long run wage distribution react to technological progress moreover whenever poverty traps of unskilled workers exist higher rates of technological progress can even decrease the incentives of low skill workers to acquire skills we also analyze the effects of educational subsidies in contrast with previous analytical findings we obtain that subsidies always decrease the long run skill premium finally we study the efficiency of the resulting competitive equilibria

the brain drain and the world distribution of income abstract skilled emigration or brain drain from developing to developed countries is becoming the dominant pattern of international migration today such migration is likely to affect the world distribution of income both directly through the mobility of people and indirectly as the prospect of migration affects the rate of return to education in both the sending and receiving economies this migration pattern will therefore affect human capital accumulation and fertility decisions in both the sending and receiving economies this paper analyzes these effects in a dynamic two country model of the world economy where agents in both countries make optimal fertility and human capital decisions the implications of the analysis for the world distribution of income are derived in the light of recent empirical findings of the brain drain literature the analysis shows that the current trend towards predominantly skilled emigration from poor to rich countries may in the long run increase inequality in the world distribution of income as relatively poor countries grow large in terms of population in the short run however it is possible for world inequality to fall due to rises in gdp per capita in large developing economies with sufficiently low skilled emigration rates

labor market institutions and wage inequality the authors investigate how labor market institutions such as unemployment insurance unions firing regulations and minimum wages have affected the evolution of wage inequality among male workers results of estimations using data on institutions in eleven oecd countries indicate that changes in labor market institutions can account for much of the change in wage inequality between 1973 and 1998 factors found to have been negatively associated with male wage inequality are union density the strictness of employment protection law unemployment benefit duration unemployment benefit generosity and the size of the minimum wage over the 26 year period institutional changes were associated with a 23 reduction in male wage inequality in france where minimum wages increased and employment protection became stricter but with an increase of up to 11 in the united states and united kingdom where unions became less powerful and in the united states minimum wages fell

international competition downsizing and wage inequality a country with cournot competition and free entry experiences an increase of its market size either due to economic growth or international integration of its goods markets this implied increase in competition leads to shrinking mark ups and forces firms to reduce overhead costs relative to output this implies a reallocation at the aggregate level from administrative to productive activities relative factor rewards change and wage inequality increases the factor which loses in relative terms can even lose in real terms from a quantitative perspective international competition is demonstrated to be the more plausible cause of rising wage inequality c 2007 published by elsevier b v

the rise and fall of centralized wage bargaining during the three decades spanning the early 1950s to the early 1980s the wage setting process in most northern european countries was dominated by centralized bargaining i e peak level labor and employer associations set wages nationwide in the early 1980s centralized wage bargaining began to collapse in this paper we assess a novel explanation for both the initial establishment of a centralized wage setting process and its subsequent collapse according to our theory centralized wage bargaining was set up as a response to the spillovers created by the unemployment benefit program its collapse was the result of the increase in the productivity gap across workers brought about by equipment specific technological progress and equipment skill complementarity

left government policy and corporatism explaining the influence of partisanship on inequality the author argues that to understand the relationship between partisan government and equality two fundamental things need to be done separate the effects of partisanship on policy and of policy on the economy and assess the influence of government partisanship once the mediating role of corporatism is accounted for the main goal of this article is to explore the relationship between government partisanship policy and inequality at the lower half of the wage distribution the analysis is motivated by a puzzling finding in previous work the absence of government partisanship effects on earnings inequality the author focuses on the role of three different policies government employment the generosity of the welfare state and minimum wages the results show that government employment is a most significant determinant of inequality although it is affected by left government only when corporatism is low they also demonstrate that welfare state generosity does not affect inequality and in turn is not associated with left government finally they reveal that the effect of government partisanship on minimum wages and of minimum wages on inequality is completely conditional on the levels of corporatism these effects are only present when corporatism is low the author explains why specific policies do or do not affect earnings inequality and also why corporatism mitigates or magnifies the influence of government partisanship by explicitly exploring the determinants of policy and earnings inequality the article represents an important contribution to our understanding of how governments can promote redistribution

explaining cross country differences in policy response to child labour we develop a model of child labour where poverty and inequality combine to determine policy response to child labour if there are strategic complementarities between parents decisions to educate their children and firms technology choice multiple school enrolment equilibria arise only rich countries and those that are not too poor and have a low wealth inequality benefit from adopting child labour laws this is because such laws commit an economy with either of those initial conditions to the full school enrolment equilibrium which pareto dominates all other equilibria moreover wealth redistribution is not sufficient to eliminate child labour jel classification i20 o33 une explication des differences d un pays a l autre dans la reaction des politiques au phenomene du travail des enfants les auteurs developpent un modele de travail des enfants dans lequel les niveaux de pauvrete et d inegalite se combinent pour determiner les politiques si des complementarites strategiques existent entre les decisions des parents d eduquer leurs enfants et le choix de technologie des entreprises de nombreux equilibres impliquant divers niveaux d inscription a l ecole sont possibles seuls les pays riches et ceux qui ne sont pas trop pauvres ou qui ont un degre d inegalite de la richesse relativement bas tirent profit de lois reglementant le travail des enfants c est le cas parce que de telles lois engagent une economie qui a ces caracteristiques a se diriger vers un equilibre d inscription totale des enfants a l ecole dans ces cas il s agit d un equilibre qui domine au sens de pareto tous les autres equilibres on note de plus que la redistribution de la richesse ne suffit pas pour eliminer le travail des enfants