Determinants of Labor Market Participation and Wages of North Korean Female Refugees in South Korea

This paper uses data from a survey on 289 North Korean female refugees who arrived in South Korea in 2007 to understand the determinants of their economic adaption in the South Korean labor market. More specifically, we look at the effects of job finding channels and government policies on the labor market participation and wages of these women. We find that job finding through both personal contacts and public employment networks increases the probability of finding employment, but the former, especially job finding through contacts with South Koreans, is the most effective route to finding employment. In addition, jobs with higher wages are acquired in employment attained from South Korean referrals, followed by South Korean government agencies and those from North Korean refugee contacts. We further find that labor market participation is negatively affected by both public benefits and private transfers possibly because of increases in the reservation wages of job seekers.     

HIV and fertility revisited

Young (2005) argues that HIV related population declines reinforced by the fertility response to the epidemic will lead to higher capital-labor ratios and to higher per capita incomes in the affected countries of Africa. Using household level data on fertility from South Africa and relying on between cohort variations in country level HIV infection, he estimates a large negative effect of HIV prevalence on fertility. However, the studies that utilize the recent rounds of Demographic Health Surveys, where fertility outcomes are linked to HIV status based on testing, find no effect of the disease on the fertility behavior. This paper tries to bridge this gap by revisiting Young's findings. Young (2005) includes data before 1990, when no data are available on HIV prevalence rates. He assigns all the fertility observations before 1990 with HIV prevalence rates of zero, and this appears to drive the significant negative effect found in his study. When one restricts the sample to the period 1990-1998, where actual HIV data are available, the effect of HIV prevalence on fertility turns out to be positive for South Africa. Simulating Young's model utilizing these new estimates shows that the future generations of South Africa are worse off.     

EMPLOYMENT STABILIZATION INSIDE FIRMS: AN EMPIRICAL INVESTIGATION OF WORKER COOPERATIVES

There is evidence that worker cooperatives provide a greater stabilization of employment compared to capital‐managed firms. While the reasons of this behaviour can be ascribed to their property and governance structure, less is known of the tools to put it into practice. I discuss two possible ways to guarantee employment insurance: by letting wages fluctuate, or by accumulating reinvested profits into an income stabilizing fund that copes with downturns without firing and without reducing wages. In this second case, I find out that asset locks play a wage smoothing role. This may explain the large share of profits that are reinvested in this indivisible and not appropriable fund. I provide evidence for this mechanism by means of original data at the firm level and of first‐hand collected survey data at the individual level on risk perception in a sample of Italian cooperatives.     

Wage differentials, discrimination and efficiency

I analyze a large labor market where homogeneous firms post wages to direct the search of workers who differ in productivity. I show that the model has a unique equilibrium. The wage differential depends positively on the workers’ productivity differential only when the latter is large. When the productivity differential is small, high-productivity workers get a lower wage than low-productivity workers. This reverse wage differential remains even when the productivity differential shrinks to zero. However, the equilibrium is socially efficient. High-productivity workers always get the employment priority and higher expected wages than low-productivity workers. Although discrimination in terms of expected wages does not exist, conventional measures are likely to incorrectly find discrimination in the model.     

Evidence on the impact of minimum wage laws in an informal sector: Domestic workers in South Africa

What happens when a previously uncovered labor market is regulated? We exploit the introduction of a minimum wage in South Africa and variation in the intensity of this law to identify increases in wages for domestic workers and no statistically significant effects on employment on the intensive or extensive margins. These large, partial responses to the law are somewhat surprising, given the lack of monitoring and enforcement in this informal sector. We interpret these changes as evidence that strong external sanctions are not necessary for new labor legislation to have a significant impact on informal sectors of developing countries, at least in the short-run.     

The role of unit labor costs in African manufacturing investment and export performance

Several studies have pointed out that manufacturing wages are relatively higher in African countries than in other countries at similar levels of development, and that this contributes to the continent's lower levels of manufacturing competitiveness. This paper derives unit labor costs (ULCs)—average wages relative to productivity—for two-digit manufacturing sectors across a sample of 79 developed and developing countries, including 13 African countries, over the 1990–2015 period. We benchmark the ULCs to China and estimate the relationship between relative ULCs and manufacturing sector investment rates and export performance. We find that relative ULCs have a smaller association with exports in Africa relative to other developing regions. There is some evidence that investment responds to changes in relative ULCs in Africa; however, the estimated effects are smaller than in the full sample. Further, we find that for Africa, the level of labor productivity has a quantitatively stronger and more robust association with manufacturing performance than the level of real wages. The results have important implications for industrial policy in African countries.     

THE RESPONSE OF STATE‐OWNED ENTERPRISES TO IMPORT COMPETITION: EVIDENCE FROM CHINESE MANUFACTURING FIRMS

We examine the wage and employment impact on Chinese firms of an increase in import competition associated with China's WTO accession in December 2001, with an emphasis on state‐owned enterprises (SOEs). We find that both wage and employment are negatively impacted by an increase in import competition, but firms with high state ownership cut employment less and reduce wages more than their private counterparts, suggesting that they prioritize the protection of employment over that of wages. This finding supports the notion that SOEs may have ‘multitask’ responsibilities in terms of protecting employment as well as achieving efficiency. We also find that firms with higher capital intensity reduce their wages less but cut employment more in response to intensified import competition. This provides empirical support for the efficiency wage theory.     

劳动力流动对城市劳动力市场的影响

本文使用2005年1%人口抽样调查数据,考察了在我国大中城市中,劳动力流动对本地劳动者就业率和工资的影响。我们发现,外来劳动力对城市本地劳动力的就业率和工资均具有统计上显著的负向作用,但是影响的规模非常小。对于全部教育组平均而言,外来劳动力每增加10%,城市本地劳动力的就业率下降0.3%,工资下降0.65%;对于中低教育水平(高中及以下)的城市本地劳动力而言,外来劳动力的影响程度相对高一些,但是仍然不算大。另外,我们发现,外来劳动力对本地职工工资的影响,要大于对就业率的影响,说明城市本地劳动力对于外来劳动力存在有限的反应,主要体现在降低保留工资,而非放弃工作机会。     

Evaluation of training in African enterprises

The importance of skill-shortage in Africa, combined with the extensive use of training, necessitates appropriate evaluation of training programs. By using firm data from Sub-Saharan Africa, we evaluate the effect of on-the-job training on log wages using matching estimators. We find that training tends to improve wages, and that the effect is larger and more well-determined when we focus on long training durations and large firms.     

Does crime deter South Africans from self-employment?

The very high crime rate in South African cities is often argued to be the main reason for the country's small share of business ownership and self-employment. This paper revisits this hypothesis. We estimate the effect of crime on business ownership and performance using a matched dataset of census, survey and police data. In contrast to previous studies, which take into account perceived rather than actual crime and often focus on specific geographic areas, we do not find robust evidence that high crime rates have a negative impact on business ownership. Even though our estimate of the effect of crime is statistically significant and negative, it is economically small. Further, we find no evidence for a negative effect of actual crime on sales, profits and investment of informal businesses. This may imply that the low share of business ownership and self-employment in South Africa must have other reasons. These results may also suggest that crime may not be in general a serious threat for small businesses in low and middle-income countries, however, this needs further empirical research.     

Fiscal implications of AIDS in South Africa

The number of people living with HIV is alarmingly large. In addition to the incomprehensible human suffering of those directly affected, AIDS also has large, negative economic effects. In this paper, I study the fiscal implications of the HIV/AIDS epidemic in South Africa in a standard neo-classical growth model. I find that an antiretroviral program is to a large extent self financing. Improvement in dependency ratios and health care cost savings would pay for Rand 144 billion of a full epidemiological intervention. The indirect effect through the changing demographic structure will be more important than the direct health care cost saving effect. I also explore different taxation policies. The households would be willing to sacrifice an amount equal to 12% of GDP in the first period to be subject to an optimal (Ramsey) fiscal policy rather than an alternative fixed debt to GDP policy. The optimal policy implies an increase in government debt during the peak of the epidemic.     

Understanding South Africa's economic puzzles*

South Africa has undergone a remarkable transformation since its democratic transition in 1994, but economic growth and employment generation have been disappointing. Most worryingly, unemployment is currently among the highest in the world. While the proximate cause of high unemployment is that prevailing wages levels are too high, the deeper cause lies elsewhere, and is intimately connected to the inability of the South African to generate much growth momentum in the past decade. High unemployment and low growth are both ultimately the result of the shrinkage of the non‐mineral tradable sector since the early‐1990s. The weakness in particular of export‐oriented manufacturing has deprived South Africa of growth opportunities as well as of job creation at the relatively low end of the skill distribution. Econometric analysis identifies the decline in the relative profitability of manufacturing in the 1990s as the most important contributor to the lack of vitality in that sector.     

Can minimum wages cause a big push? Evidence from Indonesia

Big Push models suggest that local product demand can create multiple labor market equilibria: one featuring high wages, formalization, and high demand and one with low wages, informality, and low demand. I demonstrate that minimum wages may coordinate development at the high wage equilibrium. Using data from 1990s Indonesia, where minimum wages increased in a varied way, I develop a difference in spatial differences estimator which weakens the common trend assumption of difference in differences. Estimation reveals strong trends in support of a big push: formal employment increases and informal employment decreases in response to the minimum wage. Local product demand also increases, and this formalization occurs only in the non-tradable, industrializable industries suggested by the model (while employment in tradable and non-industrializable industries also conforms to model predictions).     

Schumpeterian and semi‐endogenous productivity growth explanations

This paper examines the nature and sources of productivity growth in South African manufacturing sectors, from an international comparative perspective. On panel data estimations, we find that the evidence tends to support Schumpeterian explanations of productivity growth for a panel of countries including both developed and developing countries, and a panel of South African manufacturing sectors. By contrast, semi‐endogenous productivity growth is supported for a panel of OECD (Organisation for Economic Cooperation and Development) manufacturing sectors. However, we also report evidence that suggests that sectors are not homogeneous. For this reason, time series evidence may be more reliable than panel data. Time series evidence for South Africa suggests that prospects for the sustained productivity growth associated with Schumpeterian innovation processes, is restricted to a narrow set of sectors. For the OECD manufacturing sectors, both semi‐endogenous and Schumpeterian growth finds support. Schumpeterian growth is present for a larger number of sectors than for South Africa, and is most prevalent in the North American economies.     

Tenure, business cycle and the wage-setting process

We analyze the interaction between job tenure and external labor market conditions in wage determination. First, we introduce a model that combines job matching with business-cycle effects. As the employment relationship progresses, the worker appropriates a portion of the value of the match-specific human capital she accumulates, gradually becoming shielded from the cyclical variations in external labor market conditions: the employment relationship is progressively “internalized”. Then, we present empirical evidence supporting this prediction: the elasticity of wages to the unemployment rate decreases with tenure. This finding is robust to different specifications that allow for job heterogeneity, and it contributes to the interpretation of recent evidence of changes in the effect of the business cycle on wages.     

The dynamic impact of immigration on natives' labor market outcomes: Evidence from Israel

This paper studies the short and medium run impact of highly skilled immigrants from the Former Soviet Union to Israel on natives' wages and employment. If immigrants are relatively good substitutes for native workers, the impact of immigration will be largest immediately upon the immigrants' arrival, and may become smaller as the labor market adjusts to the supply shock. Conversely, if immigrants upon arrival are poor substitutes for natives, the initial effect of immigration is small, and increases over time as immigrants acquire local labor market skills and compete with native workers. We empirically examine these alternative hypotheses using data from Israel between 1989 and 1999.We find that wages of both men and women are negatively correlated with the fraction of immigrants with little local experience in a labor market segment. A 10 percent increase in the share of immigrants lowers natives' wages in the short run by 1–3 percent, but this effect dissolves after 4–7 years. This result is robust to a variety of different segmentations of the labor market, to the inclusion of cohort effects, and to different dynamic structures in the residual term of the wage equation. On the other hand, we do not find any effect of immigration on employment, neither in the short nor in the medium run.     

Wage Rigidity,Inflation, and Institutions

We study the possible existence of downward nominal wage rigidity (DNWR) at wage growth rates different from zero in aggregate data. Even if DNWR prevails at zero for individual workers, compositional effects might lead to falling aggregate wages, while changes in relative wages combined with DNWR might lead to positive aggregate wage growth. We explore industry data for 19 OECD countries, over the 1971–2006 period. We find evidence for a floor on nominal wage growth at 6 percent in the 1970s and 1980s, at 1 percent in the 1990s, and at 0.5 percent in the 2000s. Furthermore, we find that DNWR is stronger in country‐years with strict employment protection legislation, high union density, centralized wage setting, and high inflation.     

Export Destination,Product Quality and Wages in a Middle‐Income Country. The Case of South Africa

A robust finding in the firm‐level literature is that exporting firms pay higher wages. Using South African data this paper investigates the relationship between export destination and wages at a worker level. South Africa, a middle‐income country, has two distinct main export markets—a regional market where per capita incomes are lower than at home, and an international market with higher per capita incomes. Our estimates show that workers in firms that export to the region earn less than those that produce for the domestic market. Those in firms that export outside the region earn more than either domestic producers or region‐only exporters. Much of this difference in wages can be explained by the premium the different types of exporters pay for skills. These results support previous studies which suggest that export destination is related to product quality which in turn is related to worker quality and therefore wages.     

Can Insider Power Affect Employment?

Abstract. Do firms reduce employment when their insiders (established, incumbent employees) claim higher wages? The conventional answer in the theoretical literature is that insider power has no influence on employment, provided that the newly hired employees (entrants) receive their reservation wages. The reason given is that an increase in insider wages gives rise to a countervailing fall in reservation wages, leaving the present value of wage costs unchanged. Our analysis contradicts this conventional answer. We show that, in the context of a stochastic model of the labor market, an increase in insider wages promotes firing in recessions, while leaving hiring in booms unchanged. Thereby insider power reduces average employment.     

Reservation wages, market wages and unemployment: Analysis of individual level panel data

Using individual level panel data, we analyse the divergence between the reservation wages of individuals who are out of work and their predicted market wages, focusing upon identifying the factors that influence the potential divergence. In addition, using propensity score matching techniques, we explore the implications of such divergences for future employment and wages. Our findings suggest that having reservation wages that are high relative to the predicted market wage influence both future employment and future wages.