Do inter-city differences in intra-city wage differentials have any interesting implications?

Recent research has related characteristics of cities to differences in the distribution of wages across workers with different skill levels. We demonstrate that these differences in wage differentials arise naturally as a compensating variation in Rosen’s theoretical model of inter-city wages. For example, if the income elasticity of demand for housing services is less than unity, cities with higher house prices will have smaller money wage differentials between low and high skill workers. This result has no implications for differences in either absolute or relative real productivity or welfare of unskilled workers. Similarly, changes in the amenity of an urban area may result in changes in relative wages of skilled and unskilled workers with no implications for real productivity or welfare differentials.Empirical tests in which housing cost differentials are added as a determinant of inter-city differences in an intra-urban wage differential model provide empirical confirmation of the theoretical expectations. It appears that intra-urban money wage differentials, differences in the quality of life, and variation in the cost of living in each city are jointly determined variables just as Rosen’s model of inter-city wage differentials predicts.     

Do inter-city differences in intra-city wage differentials have any interesting implications?

Recent research has related characteristics of cities to differences in the distribution of wages across workers with different skill levels. We demonstrate that these differences in wage differentials arise naturally as a compensating variation in Rosen’s theoretical model of inter-city wages. For example, if the income elasticity of demand for housing services is less than unity, cities with higher house prices will have smaller money wage differentials between low and high skill workers. This result has no implications for differences in either absolute or relative real productivity or welfare of unskilled workers. Similarly, changes in the amenity of an urban area may result in changes in relative wages of skilled and unskilled workers with no implications for real productivity or welfare differentials.Empirical tests in which housing cost differentials are added as a determinant of inter-city differences in an intra-urban wage differential model provide empirical confirmation of the theoretical expectations. It appears that intra-urban money wage differentials, differences in the quality of life, and variation in the cost of living in each city are jointly determined variables just as Rosen’s model of inter-city wage differentials predicts.     

Outsourcing and computers: Impact on urban skill level and rent

Cities in the U.S. with a higher initial share of college graduates have had a greater subsequent increase in this share over the past two decades. Concurrently, housing prices have grown faster in these skilled cities. This paper argues that the diffusion of computers and outsourcing may partly explain these two phenomena. In the presented model, skilled workers are more productive in skilled cities and need unskilled support services. The cities' unskilled workers can perform the support services, but when it is cheaper, such services can be undertaken by computers or outsourced to less-skilled cities. New technologies facilitating computerization and outsourcing can increase the skill share and housing prices in skilled cities relative to less-skilled cities, under reasonable assumptions. The basic economics is that the new technologies diminish the demand for unskilled workers in skilled cities and permit skilled workers to earn higher wages, which in turn increases the supply of skilled workers in skilled cities and drives up housing prices. Empirically, this paper documents five stylized facts that the theory can rationalize. Particularly important is rising skill premium in skilled cities relative to less-skilled cities, which supports a production theory involving shifts in labor demand.     

Wage Spillovers,Inter-regional Effects and the Impact of Inward Investment

Abstract

This paper evaluates the extent of inter-industry and inter-regional wage spillovers across the UK. An extensive body of literature exists suggesting that wages elsewhere affect wage determination and levels of satisfaction, but this paper extends the analysis of wage determination to examine the effects of inward investment in the process. Thus far the specific effect of foreign wages on domestic wage determination has not been evaluated. We employ industry- and regional-level panel data for the UK, and contrast results from alternative approaches to space-time modelling. Each supports the notion that such wage spillovers do occur, though assumptions made concerning the modelling of spatial interaction are important. Further, such wage spillovers are more widespread for skilled than for unskilled workers and also lower in areas of high unemployment.     

Capital-skill complementarity,productivity and wages: Evidence from plant-level data for a developing country

Different types of labor and capital inputs have varying productive contributions that are dependent on plant characteristics. We estimate such contributions and their underlying determinants, recognizing the interactions among labor and capital components that reflect their substitutability or complementarity, for Turkish manufacturing plants. We distinguish technical and non-technical labor, and structures, machinery and computer capital, as well as the shares of female workers and imported capital in our production function specification. We find capital-skill complementary for both machinery and computers; greater productive contributions and thus wages for skilled labor are associated with more machinery intensity and computer use. The reverse is true for unskilled labor, which is complementary only with capital structures. Our results suggest that synergies among skilled (technical) labor, computers, and machinery capital have productivity- and skilled wage-enhancing effects that could contribute to productivity convergence of developing toward developed countries, even with their differing industry and input composition.     

The impact of minimum wages on wages,work and poverty in Nicaragua

In this paper we use an individual- and household-level panel data set to study the impact of changes in legal minimum wages on a host of labor market outcomes including: a) wages and employment, b) transitions of workers across jobs (in the covered and uncovered sectors) and employment status (unemployment and out of the labor force), and c) transitions into and out of poverty. We find that changes in the legal minimum wage affect only those workers whose initial wage (before the change in minimum wages) is close to the minimum. For example, increases in the legal minimum wage lead to significant increases in the wages and decreases in employment of private covered sector workers who have wages within 20% of the minimum wage before the change, but have no significant impact on wages in other parts of the distribution. The estimates from the employment transition equations suggest that the decrease in covered private sector employment is due to a combination of layoffs and reductions in hiring. Most workers who lose their jobs in the covered private sector as a result of higher legal minimum wages leave the labor force or go into unpaid family work; a smaller proportion find work in the public sector. We find no evidence that these workers become unemployed.Our analysis of the relationship between the minimum wage and household income finds: a) increases in legal minimum wages increase the probability that a poor worker's family will move out of poverty, and b) increases in legal minimum wages are more likely to reduce the incidence of poverty and improve the transition from poor to non-poor if they impact the head of the household rather than the non-head; this is because the head of the household is less likely than a non-head to lose his/her covered sector employment due to a minimum wage increase and because those heads that do lose covered sector employment are more likely to go to another paying job than are non-heads (who are more likely to go into unpaid family work or leave the labor force).     

Explaining regional variation in equilibrium real estate prices and income

We combine the real estate model of Potepan (1996) with the spatial equilibrium approach of Roback (1982) to prove the interdependency of housing prices, rental prices, building land prices and income via one simultaneous equilibrium analysis. Using unique cross-sectional data on the majority of German counties and cities for 2005, we estimate the equations in their structural and reduced form. The results show significantly positive interaction effects of income and real estate prices. Moreover, we can confirm model predictions concerning the majority of exogenous determinants. In particular, expectations about population development seem to be among the most important determinants of price and income disparities between regions in the long term.     

DOES MIGRATION REDUCE REGIONAL DISPARITIES? THE ROLE OF SKILL‐SELECTIVE FLOWS

The existence of income per capita disparities is a striking feature of European regional development, while increasing internal migration is often cited as a convergence factor. This paper states that this argument is too simple if migration concerns skilled workers. To support this statement, the focus is on skill-selective migration flows: first, it is shown how easily they can happen (for instance, they can be caused by different regional wage settings); then, a model is used to investigate the effects of different regional endowments of immobile factors on migration. The model shows that skill-selective migration can, in some cases, lead to increasing income per capita disparities and, for this reason, policy makers need to pay attention when attempting to narrow regional disparities by easing interregional migration.     

Foreign ownership,human capital,and the structure of wages in Japan

We examine the differences in the structure of wages between domestic and foreign-owned establishments in Japan. We use high-quality datasets from the Japanese government and construct a large employer–employee matched database consisting of 1 million workers in 1998. Our results confirm that foreign-owned establishments in Japan pay higher wages. We estimate that one percentage increase in foreign-ownership share of equity raises wages by 0.3%. We surmise that this foreign-ownership wage premium can be explained, at least in part, by compensating wage differentials. Workers in foreign-owned establishments are not protected by lifetime employment. They receive higher compensation for being exposed to higher risk and forfeiting their employment security. We also find that in foreign-owned establishments, wages are determined more by general skills, and less by firm-specific skills. These effects become more pronounced among establishments with a higher share of foreign ownership. The gender wage gap is considerably smaller among foreign establishments. Given the lack of long-term prospects for women in the Japanese labor market, foreign-owned establishments may be one source of ‘brain drain’ for highly skilled women there.     

Paying to queue: a theory of locational differences in nonunion wages

Traditional theories of the effect unions have on nonunion wages are difficult to reconcile with firm and worker mobility. We show how differences in nonunion wages can persist in a two-city search model. Nonunion wage differences across cities are driven by transition rates into the union sector. Should union queues form in the nonunion sector, union power decreases nonunion wages as workers are willing to take lower wages to line up for union jobs. However, if queues are formed in the unemployed sector, union power increases nonunion wages as nonunion firms pay premiums to induce workers to leave the queue.     

Expected income and labor market choices of US married couples: A locally weighted regression approach

This paper applies a locally weighted scatterplot smoothing (loess) method to estimate the spatially heterogeneous wages of demographic groups of workers across precisely defined US labor markets. We estimate a location choice model using data from the National Longitudinal Survey of Youth (NLSY79) using these estimates of labor market specific wages for men and women as determinants of their place of residence. We compare estimates of this model to a model using more aggregated measures of wages and locations from CPS. We show that potential wages based on these more refined definitions of labor markets and demographic groups provide more explanatory power in a simple migration model than do those based upon less detailed definitions of labor markets and demographic groups.     

Measuring immigration's effects on labor demand: A reexamination of the Mariel Boatlift

Why do immigration shocks tend to have benign effects on native wages? One reason is that immigrants as consumers contribute to the demand for their services. We model an economy where workers spend their wages on a locally produced good, then test it via a reexamination of the 1980 “Mariel Boatlift” using Wacziarg's Channel Transmission methodology. Current Population Survey data on workers in 9 different retail labor markets and Survey of Buying Power data on retail spending by consumers in Miami and four comparison cities are used. We find strong evidence that the Mariel Boatlift augmented labor demand.     

Progressive Taxes and the Labour Market: Is the Trade–off Between Equality and Efficiency Inevitable?

Does an income tax harm economic efficiency more the more progressive it is? Public economics provides a strong case for a definite ‘yes’. But at least three forces may pull in the other direction. First, low–wage workers may on average have more elastic labour supply schedules than high–wage workers, in which case progressive taxes contribute to a more efficient allocation of the total tax burden. Second, in non–competitive labour markets, progressive taxes may encourage wage moderation, and hence reduce the equilibrium level of unemployment. And third, if wage setters have egalitarian objectives, progressive taxes may reduce the need for redistribution in pre–tax wages, and hence increase the demand for low–skilled workers. This paper surveys the theoretical, as well as the empirical literature about labour supply, taxes and wage setting. We conclude that in a second best world, the trade–off between equality and efficiency is not always inevitable.     

Communication externalities in cities

To identify communication externalities in French cities, we exploit a unique survey recording workplace communication of individual workers. Our hypothesis is that in larger and/or more educated cities, workers should communicate more. In turn, more communication should have a positive effect on wages. By estimating both an earnings and a communication equation, we find evidence of communication externalities. In larger and more educated cities, workers communicate more and in turn this has a positive effect on their wages. Depending on the estimates, we find that 13 to 22% of the effects of a more educated and larger city on wages percolate through this channel.     

Minimum wages,wages and employment in various sectors in Honduras

This paper contributes to our understanding of the impact of minimum wages on labor markets of developing countries, where there are often multiple minimum wages and compliance is weak. We examine how changes in more than 22 minimum wages over 1990–2004 affect employment, unemployment and average wages of workers in different sectors, defined by coverage under the legislation. The evidence suggests that minimum wages are effectively enforced only in medium and large-scale firms, where a 1% increase in the minimum wage leads to an increase of 0.29% in the average wage and a relatively large reduction in employment of ? 0.46%. We find that public sector wages emulate minimum wage trends but the higher cost of labor does not reduce employment there. There are no discernable effects of minimum wages on the wages of workers in small-firms or the self-employed; yet, higher minimum wages may create more unemployment. We conclude that (even under our upper bound estimate of the effect on the wages of workers) the total earnings of workers in the large-firm covered sector fall with higher minimum wages in Honduras, which warrants a policy dialogue on the structure and level of minimum wages.     

The relationship between wage growth and wage levels

We estimate the covariance between the permanent component of wages and a random coefficient on experience in models both with potential experience and with actual experience. Actual experience is allowed to be arbitrarily correlated with both the permanent component of wages and the random component on experience. We find no evidence that workers of higher ability experience faster wage growth. Our point estimates suggest that a worker with a one standard deviation higher level of permanent ability would have a return to annual potential experience that is 0.61 of a percentage point lower. The analogous point estimate for actual experience is 0.87 of a point lower. Contrary to the popular perception, wage growth among low‐skill workers appears to be at least as high as that for a medium‐skilled worker. Copyright © 2009 John Wiley & Sons, Ltd.     

Measuring well-being in Colombian departments. The role of geography and demography

This paper provides a composite indicator of well-being for the 33 Colombian departments in the year 2016. The indicator is built by adapting the well-known OECD Better Life Index to the regional level, and includes the dimensions of income, health, education, safety, housing, environment, labour market, and civic engagement and governance. As to the methodology, Data Envelopment Analysis and Multi-Criteria Decision-Making techniques are employed, an approach which enables a comparison of well-being across departments and the construction of rankings. The results yield several take-away messages. First, there are substantial disparities in well-being across Colombian departments. Second, despite the fact that average well-being in Colombia is relatively low, the population is concentrated in the departments with the highest well-being levels. Third, geography matters, as neighbouring departments have similar well-being levels, giving rise to a core-periphery duality. Fourth, well-being generally improves and disparities decline when purely economic dimensions (income and labour market) are excluded from the composite indicator.     

Acquisition of skills, labor subsidies, and agglomeration of firms

The paper develops an analytically solvable model of new economic geography in which agglomeration of firms is caused by workers' investment in the acquisition of skills. Skilled workers earn high wages and have a large demand for goods. Since firms are attracted towards the demand, they locate at proximity of skilled workers. More workers invest in the acquisition of skills when more firms ask for these skills. Consequently, partial or full agglomeration of firms may be the location equilibrium. We also show that a reduction in transport costs increases the regional governments' incentives to subsidize the acquisition of skills.     

Education,moral hazard,and endogenous growth

We build an overlapping generations model of endogenous growth driven by human capital formation. Young people differ in their innate abilities, but these differences are not known even by the individuals themselves when they are going through the process of education. So there are no adverse selection problems. The probability of successful completion of schooling depends on both innate abilities and effort level. Moral hazard arises because effort is not observable. Successful students become skilled workers while unsuccessful ones become unskilled workers. A utilitarian government that cares about income distribution within each generation transfers income from the rich (skilled workers) to the poor (unskilled ones). This is anticipated by the young pupils and reduces incentive for hard work. This results in a lower rate of graduation, and has an adverse effect on the growth rate of human capital and output. Comparative statics results across balanced growth paths are derived. The parameters of interest are the students' rate of time preference, their degree of effort aversion and the relative price of the skill-intensive consumption good.     

Empirical evidence on occupation and industry specific human capital

This paper presents instrumental variables estimates of the effects of firm tenure, occupation specific work experience, industry specific work experience, and general work experience on wages using data from the 1979 Cohort of the National Longitudinal Survey of Youth. The estimates indicate that both occupation and industry specific human capital are key determinants of wages, and the importance of various types of human capital varies widely across one-digit occupations. Human capital is primarily occupation specific in occupations such as craftsmen, where workers realize a 14% increase in wages after five years of occupation specific experience but do not realize wage gains from industry specific experience. In contrast, human capital is primarily industry specific in other occupations such as managerial employment where workers realize a 23% wage increase after five years of industry specific work experience. In other occupations, such as professional employment, both occupation and industry specific human capital are key determinants of wages.