Labor Market Effects of Economic Integration: The Impact of Re-Unification in German Border Regions

Abstract. This paper exploits the significant reduction in impediments to labor mobility in the process of German re-unification in order to identify labor supply shocks in the West German labor market. The focus is on the quasi-experiment of the border removal in the regions situated at the German–German border that faced a massive increase of cross-border labor supply. The results indicate that despite a gain in employment, the border removal was accompanied by a decline in wages and an increase in unemployment relative to other West German regions.     

Internal Migration Determinants: Recent Evidence

The present study investigates the impact on gross state in-migration over the 1999–2002 period of a variety of economic and non-economic factors. The empirical estimates indicate that gross state in-migration was an increasing function of expected per capita income on the one hand or actual per capita income on the other hand and a decreasing function of the average cost of living. Interstate unemployment rate differentials per se do not appear to have influenced gross migration, however. In addition, gross state in-migration was an increasing function of the availability of state parks, recreation, warmer temperatures, location in the West, and greater sunshine while being a decreasing function of the violent crime rate and the presence of hazardous waste sites.Revised version of a paper presented at the 56th International Atlantic Economic Conference, Quebec City, Canada, October 16–19, 2003.     

Housing price and entrepreneurship in China

Housing price has increased dramatically in China during the past decade. The appreciation of house value could relax credit constraint and thus encourage entrepreneurship. However, a house serves as both an important investment channel and a prerequisite for marriage in China. The continuous high return of investment in housing and intensified marriage market competition make house purchase a priority for young people and their parents, which would crowd out entrepreneurial activities. Using two large datasets, we find that high housing price in general discourages entrepreneurial activities for urban adults. For house owners, while house value appreciation has a positive wealth effect, the ratio of mortgage over income has a negative effect. For non-owners, a higher ratio of housing price over income corresponds to a lower probability of entrepreneurship. This study highlights the negative consequences of surging housing price on entrepreneurship in developing countries.     

Child labor and schooling response to changes in coca production in rural Peru

Coca eradication and interdiction are the most common policies aimed at reducing the production and distribution of cocaine in the Andes, but little is know about their impact on households. This paper uses the shift in the production of coca leaves from Peru to Colombia in 1995 to analyze the indirect effects of the anti-coca policy on children's allocation of time. After different sensitivity checks, the results indicate that a decrease in coca production is associated with increases in work and hours children living in coca-growing states devote to work within and outside the household, with no effects on schooling outcomes. These findings suggest a previously undocumented indirect effect of drug policies on household behavior.     

Who stays,who goes,who returns?

We study the determinants of East–West migration within Germany during the period 1990–2006, using administrative data, the German Microcensus and the German Socio‐Economic Panel. We find that in addition to income prospects and employment status, two well‐known determinants of migration, psychological and social factors play an important role in determining the migration decision. Men and women move from East to West in proportionate numbers, but among individuals who lived in the East in 1989 women are more likely to migrate. The migrant body in the second wave of migration, starting in the late 1990s, is increasingly composed of young, educated people. By focusing on differences between temporary and permanent migrants, we find that older and single individuals are more likely to return East than stay permanently in the West, compared with younger and married individuals. Finally, the life satisfaction of permanent migrants increases significantly after a move, while that of temporary migrants remains essentially flat.     

Search, migration, and urban land use: The case of transportation policies

We develop a search-matching model with rural-urban migration and an explicit land market. Wages, job creation, urban housing prices are endogenous and we characterize the steady-state equilibrium. We then consider three different policies: a transportation policy that improves the public transport system in the city, an entry-cost policy that encourages investment in the city and a restricting-migration policy that imposes some costs on migrants. We show that all these policies can increase urban employment but the transportation policy has much more drastic effects. This is because a decrease in commuting costs has both a direct positive effect on land rents, which discourages migrants to move to the city, and a direct negative effect on urban wages, which reduces job creation and thus migration. When these two effects are combined with search frictions, the interactions between the land and the labor markets have amplifying positive effects on urban employment. Thus, improving the transport infrastructure in cities can increase urban employment despite the induced migration from rural areas.     

The spatial sorting and matching of skills and firms

Abstract .  In this paper we make use of a matched employer-employee database for Italy to look at the spatial distribution of wages. Using this rich database we aim to open up the black box of agglomeration economies exploiting the micro dimension of interaction among economic agents, both individuals and firms. We provide evidence that firm size and, especially, skills are sorted across space and account for a large portion of the spatial wage variation. Our data also support the assortative matching hypothesis, which we show not to be driven by co-location of good workers and firms. Finally, we point out that assortative matching is negatively related to local market size.     

The microeconomic determinants of emigration and return migration of the best and brightest: Evidence from the Pacific

A unique survey which tracks worldwide the best and brightest academic performers from three Pacific countries is used to assess the extent of emigration and return migration among the very highly skilled, and to analyze, at the microeconomic level, the determinants of these migration choices. Although we estimate that the income gains from migration are very large, not everyone migrates and many return. Within this group of highly skilled individuals the emigration decision is found to be most strongly associated with preference variables such as risk aversion and patience, and choice of subjects in secondary school, and not strongly linked to either liquidity constraints or to the gain in income to be had from migrating. Likewise, the decision to return is strongly linked to family and lifestyle reasons, rather than to the income opportunities in different countries. Overall the data suggest a relatively limited role for income maximization in distinguishing migration propensities among the very highly skilled, and a need to pay more attention to other components of the utility maximization decision.     

Network effects and the dynamics of migration and inequality: Theory and evidence from Mexico

International migration is costly and initially only the middle class of the wealth distribution may have both the means and incentives to migrate, which can increase inequality in the sending community. However, the migration networks formed lower the costs for future migrants, which can in turn lower inequality. This paper shows both theoretically and empirically that wealth has a nonlinear effect on migration, and then examines the empirical evidence for an inverse U-shaped relationship between emigration and inequality in rural sending communities in Mexico. After instrumenting, we find that the overall impact of migration is to reduce inequality across communities with relatively high levels of past migration. We also find some suggestive evidence for an inverse U-shaped relationship among communities with a wider range of migration experiences.     

Selection and network effects—Migration flows into OECD countries 1990-2000

This paper presents empirical evidence on immigration flows into the OECD countries during the period 1990-2000. Our results indicate that network effects are strong, but vary between different groups of welfare states and between countries according to the type of immigration policy being applied. Network effects seem to be less important in the Nordic countries which also seem to attract immigrants from the lowest income level source countries. We do not find clear evidence that selection effects measured by migration flows being sensitive to differences in public social expenditures have had a major influence on the observed migration patterns until now. This may partly be explained by restrictive migration policies which may have dampened the potential selection effects.     

Estimating the social return to transport infrastructure: A price-difference approach applied to a quasi-experiment

Using the price differences between two markets, this study proposes a method for inferring the social return to transport infrastructure (in the vein of Fogel (1964)). We apply this approach to an investment that increased the shipping capacity of a thousand-mile-long railroad in western China. The event was quasi-experimental: before the expansion, the railroad was congested in one direction, but not the other. We find that, after the investment, (1) the between-destination price differences of goods shipped in the congestion direction dropped by about 30% and (2) shipping volume increased by around 40%. In contrast, those of goods in the other direction were not affected. These estimates imply a sizable social return to this particular investment: 10% per year in the most conservative case considered.     

The mover’s advantage: The superior performance of migrant scientists

Migrant scientists outperform domestic scientists. The result persists after instrumenting migration for reasons of work or study with migration in childhood to minimize the effect of selection. The results are consistent with theories of knowledge recombination and specialty matching.     

Why do immigrant workers in Australia perform better than those in Canada? Is it the immigrants or their labour markets?

Research comparing the labour market performance of recent cohorts of immigrants to Australia and Canada points to superior employment and earnings outcomes in Australia. Examining Australian and Canadian Census data between 1986 and 2006, we find that this performance advantage is not driven by differences in broader labour market conditions affecting all new labour market entrants. Rather, the results from comparing immigrants from a common source country – either the U.K., India, or China – suggest that Australian immigrants perform better, particularly in average earnings, primarily because of a different source country distribution. Moreover, the recent tightening of Australian selection policy, most notably its use of mandatory pre‐migration English‐language testing, appears to be having an effect, primarily by further shifting the source country distribution of immigrants away from non‐English‐speaking source countries, rather than in identifying higher‐quality migrants within source countries.     

A healthier start: The effect of conditional cash transfers on neonatal and infant mortality in rural Mexico

Conditional cash transfer programs seek to break the intergenerational transmission of poverty by building the human capital of poor children. Despite their popularity throughout the developing world, relatively little is known about their effect on children's health outcomes. This paper evaluates the impact of the Mexican conditional cash transfer program, Progresa, on two important health outcomes: infant and neonatal mortality. It exploits the phasing-in of Progresa over time throughout rural Mexico to identify the impact of the program. The paper shows that Progresa led to a large 17% decline in rural infant mortality among the treated, but did not reduce neonatal mortality on average. The benefit-cost ratio is between 1.3 and 3.6. Tests for heterogeneity show larger declines for some groups including those municipalities whose pre-program levels of mortality were above the median, and those that prior to the program had higher illiteracy rates, and less access to electricity.     

Inequality, corruption and the informal sector

The marginal impact of corruption on income inequality is shown to be a linear function of the size of the informal sector. This implies that anti-corruption policies alone are unlikely to reduce inequality in countries with a large informal sector.