Does Raising the Minimum Wage Help the Poor?*

What is the impact of raising the minimum wage on family incomes? Using data from the 1994–1995 to 2002–2003 Survey of Income and Housing, the characteristics of low-wage workers are analysed. Those who earn near-minimum wages are disproportionately female, unmarried and young, without postschool qualifications and overseas born. About one-third of near-minimum-wage workers are the sole worker in their household. Due to low labour force participation rates in the poorest households, minimum-wage workers are most likely to be in middle-income households. Under plausible parameters for the effect of minimum wages on hourly wages and employment, it appears unlikely that raising the minimum wage will significantly lower family income inequality.     

Expected work experience and the gender wage gap: A new human capital measure

Work experience is a key variable in earnings function estimates and wage gap decompositions. Because data on actual work experience are rare, studies commonly use proxies, such as potential experience. But potential experience is identical for all individuals of the same age and level of education, so it ignores labor market intermittency because of childbirth and child rearing—a critical omission when analyzing gender differences in earnings. This paper constructs a better proxy: expected work experience, which is the sum of the annual probabilities that an individual worked in the past. This measure can be generated using commonly available data on labor force participation rates by age and gender to gauge the probability of past work. Applying the measure to labor force survey data from the Philippines shows that conventional proxies underestimate the contribution of gender differences in work experience in explaining the gender wage gap.     

Child labor,urban proximity,and household composition

Using detailed survey data from Nepal, this paper examines the determinants of child labor with a special emphasis on urban proximity. We find that children residing in or near urban centers attend school more and work less in total but are more likely to be involved in wage work or in a small business. The larger the urban center, the stronger the effect is. Urban proximity is found to reduce the workload of children and improve school attendance up to 3 h of travel time from the city. In areas of commercialized agriculture located 3 to 7 h from the city, children do more farm work. Urban proximity effects are accounted for by a combination of local labor supply and demand conditions, most notably the local importance of agriculture, the education level of the parents, and the local wage rate. Child servants, which represent a small proportion of all children, work much harder than other children and appear particularly at risk.     

Skilled-unskilled wage inequality and unemployment: A general equilibrium analysis

The paper develops a static three sector competitive general equilibrium model of a small open economy in which skilled labor is mobile between a traded good sector and the non-traded good sector and unskilled labor is specific to another traded good sector. Capital is perfectly mobile among all these three sectors. We introduce involuntary unemployment equilibrium in both the labor markets and explain unemployment using efficiency wage hypothesis. We examine the effects of change in different factor endowments and prices of traded goods on the unemployment rates and on the skilled-unskilled relative wage. Also, we introduce Gini-Coefficient of wage income distribution as a measure of wage income inequality; and show that a comparative static effect may force the skilled-unskilled relative wage and the Gini-Coefficient of wage income distribution to move in opposite directions in the presence of unemployment.     

Minimum Wage: Does it Improve Welfare in Thailand?

We study the causal impact of the minimum wage on labor market outcomes, household consumption, inequality and poverty in Thailand by relying on policy variation in minimum wages over time across provinces. We find that minimum‐wage increases have a large and significant impact on the likelihood of working in the uncovered sector among workers with elementary education. However, the impact is very small and insignificant among other labor market groups. In contrast, the minimum wage has large positive effects on the formal sector wages of low‐earning workers, such as the young, elderly and low educated. Increases in the minimum wage are associated with reductions in household poverty and consumption inequality at the bottom half of the distribution.     

Tariff pass-through and the distributional effects of trade liberalization

This paper estimates the distribution of welfare gains due to the trade reforms in India by simultaneously considering the effect on prices of tradable goods and wages. The cost of consumption for each household is affected by the domestic price changes, while wage incomes adjust to these price changes in equilibrium. Three rounds of the Indian Employment and Consumption Surveys are used for the analysis. The price transmission mechanisms are estimated for both rural and urban areas to understand the extent to which the trade reforms are able to affect the domestic prices. In order to assess the distributional effects, a series of nonparametric local linear regressions are estimated. The findings show that households at all per capita expenditure levels had experienced gains as a result of the trade liberalization, while the average effect was generally pro-poor and varied significantly across the per capita expenditure spectrum.     

Why did wage inequality increase? Evidence from urban India 1983–99

Since the start of the economic reform in 1991, there have been serious concerns regarding the increasing income inequality in India. However, no studies have analyzed how and why the inequality has been accelerated. This study aims to fill these knowledge gaps. The main findings are: (1) The wage inequality in urban India started increasing before 1991; (2) The increase in the wage inequality was mainly attributable to increases in the returns to skills; (3) The accelerating skill premium was due to increases in the demand for skilled labor. The demand shift is attributed to skill-biased technological changes within industries.     

Why is child labor illegal?

We present a theory of the emergence of laws restricting child labor or imposing mandatory education that is consistent with the fact that poor parents tend to oppose such laws. We find that if altruistic parents are unable to commit to educating their children, child-labor laws can increase the welfare of higher-income parents in an ex ante sense. On the basis of an empirical analysis of Latin-American household surveys, we demonstrate that per capita income in the country of residence has the predicted effect on child labor supply, even after controlling for other household characteristics.     

Doing it all: Women’s employment and reproductive work in Tajikistan

Central Asia has low labor force participation rates for women, despite high levels of poverty in the non-oil producing countries. Female labor force participation is related to competing uses for women’s time, especially in a context of poor infrastructure and limited availability of purchased replacements for household labor. We examine factors affecting women’s participation in employment and reproductive household work in Tajikistan, drawing on the 2003 Tajikistan Living Standards Survey. We incorporate specific conditions in Central Asia, including the prevalence of extended family households, norms about how women share household work, an absence of market substitutes for caring and reproductive labor, employment in family enterprises and poor infrastructure, especially in rural areas. We estimate the system using a Generalized Maximum Entropy (GME) approach. We find that few individual and household characteristics are related to time in employment. Time in noncare reproductive work decreases if a woman receives direct remuneration for her employment (compared to working in a family farm or enterprise but receiving no direct remuneration), but increases if the woman has less access to infrastructure. Rural women spend more time in both employment and non-care reproductive work than urban women, but less time in care work. Lack of infrastructure may leave women with few choices with respect to non-care reproductive work, while overall levels of time poverty create pressures on care time.     

Child labor and agricultural shocks

This paper examines the relationship between household income shocks and child labor. In particular, we investigate the extent to which transitory income shocks lead to increases in child labor and whether household asset holdings mitigate the effects of these shocks. Using data from a household panel survey in Tanzania, we find that both relationships are significant. We investigate mechanisms that could account for these results, including buffer stocks and borrowing.     

Industry Wages Across Countries and Over Time: A New Database of Micro Survey Data

This paper presents a newly collected database on industry wages. The underlying data are micro datasets collected through nationally representative household surveys which are mostly conducted by national statistical agencies. In comparison with wage measures based on macroeconomic data sources, we find that industry wages based on micro survey data are more reliable. Furthermore, data from nationally representative micro surveys are becoming increasingly available, thus allowing for better coverage, especially of low‐income countries. The database provides a reliable source of data for research on inter‐industry wage structures and gender wage differentials, across countries and over time. It may also serve as a basis for further research on the determinants and implications of inter‐industry and gender wage variations.     

The welfare costs of union wage compression

This paper calculates the quantitative significance of the welfare costs of union wage compression. This is done in a dynamic general equilibrium model with overlapping generations where agents choose both schooling (human capital) and assets (physical capital). The labor market in this model is characterized as a right-to-manage contract, which allows unions to compress wage differentials between high- and low-skilled workers, by implementing a binding minimum wage. This paper shows that when labor markets are competitive even low levels of wage compression lead to large welfare losses, since wage compression creates costly unemployment among low-skilled workers. The effect of wage compression on the supply of skilled labor, however, is rather small, since the disincentive effect of a lower, high-skilled wage is, to a large extent, offset by a lower opportunity cost of schooling due to higher unemployment.     

Minimum wage,on-the-job search and employment: On the sectoral and aggregate equilibrium effect of the mandatory minimum wage

We study the impact of a minimum wage in a segmented labor market in which workers are at different stages of their careers. At the end of a learning-by-doing period, workers paid the minimum wage quit “bad jobs” for better-paying “good jobs”, following an on-the-job search process with endogenous search intensity. A rise in the minimum wage reduces “bad jobs” creation and prompts workers to keep their “bad jobs” by reducing on-the-job search intensity. The ambiguous impact on unqualified employment replicates and explains the findings of several empirical studies. However, a minimum wage rise reduces overall employment and output.     

Minimum wage, exports and growth

Using an endogenous growth model in an open economy, we study the impact of minimum wages on growth for an innovator country. We state that a minimum wage shifts efforts from production to R&D, but only in an open economy. Thus, it speeds up long-run growth in proportional to exports. Calibrations suggest the growth surplus can be significant. An empirical study on 11 OECD countries illustrates these results. The impact on welfare is ambiguous because the minimum wage induces unemployment. However, we show that in an open economy, a minimum wage associated with unemployment benefits can Pareto dominate laissez-faire.     

Is life more risky in the open? Household risk-coping and the opening of China's labor markets

This paper uses a unique panel of data from rural China to analyze the impact of expanding connections to off-farm labor markets on the income and consumption of farm households. With stronger village ties to both migrant and local off-farm labor markets, households in previously autarkic village communities experience reduced exposure to shocks affecting agricultural production. The analyses presented in this paper control for the persistent effect of past shocks influencing income and consumption, household attrition potentially correlated with shocks, and endogeneity of household demographic composition, land holdings and village network connections to migrant and local labor markets.     

The diffusion of computers and the distribution of wages

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.     

Modeling migration barriers in a two-sector framework: A welfare analysis of the hukou reform in China

The present paper constructs a two-sector labor market model for China featuring endogenous internal labor mobility and heterogeneous costs of migration induced by the Chinese household registration system (hukou). The main novelty of our model is to divide migrants into those with more family responsibilities and those with fewer to explain the empirical fact that almost all young people with rural hukou have migrated to cities, while people who stay in the rural area are older and have more family responsibilities. We conduct two policy experiments using the model: one experiment concerned with reducing costs of living for younger migrants and the other for older migrants. The main results are that the first policy would unambiguously increase social welfare, while the reduced-cost policy for older migrants would reduce poverty and inequality although some urban natives may experience a wage reduction.     

Age-differentiated minimum wages in developing countries

The fact that minimum wages seem especially binding for young workers has led some countries to adopt age-differentiated minimum wages. We develop a dynamic competitive two-sector labor market model where workers with heterogeneous initial skills gain productivity through experience. We compare two equally binding schemes of single and age-differentiated minimum wages, and find that although differentiated minimum wages result in a more equal distribution of income, such a scheme creates a more unequal distribution of wealth by forcing less skilled workers to remain longer in the uncovered sector. We also show that relaxing minimum wage solely for young workers reduces youth unemployment but harms the less skilled ones.     

Has Abe's Womanomics Worked?

The present paper estimates the effect of the Abe Cabinet's Womanomics policies that aimed to increase female labor supply and keep women on a career path. The policies are surveyed, and the effects are estimated using microdata from the Labor Force Survey combined with data at the prefectural level on day care provision. A difference‐in‐difference (DD) method is applied to uncover the impacts of the Abe Cabinet's policies. The rapid increase in the provision of infant care, especially in the urban area, has contributed to a strong increase in the labor participation of mothers with young children. In addition, DD method estimates show a strong increase in mothers with infants staying in permanent‐contract regular employment. A significant shortening of work hours of workers, especially of parents with infants, is observed, which enabled working mothers to maintain their employment status. A change in the gender wage gap in the Japanese labor market is observed, but much progress is still required to close the large wage gap.     

The empirical content of the job search model: Labor mobility and wage distributions in Europe and the US

Job search models of the labor market hypothesize a very tight correspondence between the determinants of labor turnover and individual wage dynamics on one hand, and the determinants of wage dispersion on the other. This paper offers a systematic examination of whether this correspondence is present in the data by estimating a rudimentary partial equilibrium job search model on a 3-year panel of individual worker data covering 10 European countries and the U.S. We find that our basic job search model fits the data surprisingly well. This also allows us to point at a number of interesting empirical regularities about wage distributions. Our results suggest that cross-sectional data on individual wages contain the basic information needed to obtain a reliable measure of the “magnitude of labor market frictions”, as measured by a parameter of the canonical job search model. Finally, we use our results in a cross-country comparison of the intensity and nature of job-to-job turnover. We arrange countries into two different groups according to their turnover intensity. We further show that the nature of job-to-job turnover is very different between those two groups: Turnover is predominantly voluntary in low-turnover countries, whereas it is to a large extent involuntary in high-turnover countries.