Estimating the effects of the minimum wage in a developing country: A density discontinuity design approach

This paper proposes a framework to identify the effects of the minimum wage on the joint distribution of sector and wage in a developing country. I show how the discontinuity of the wage distribution around the minimum wage identifies the extent of noncompliance with the minimum wage policy, and how the conditional probability of sector given wage recovers the relationship between latent sector and wages. I apply the method in the “PNAD,” a nationwide representative Brazilian cross‐sectional dataset for the years 2001–2009. The results indicate that the size of the informal sector is increased by around 39% compared to what would prevail in the absence of the minimum wage, an effect attributable to (i) unemployment effects of the minimum wage on the formal sector and (ii) movements of workers from the formal to the informal sector as a response to the policy.     

Minimum wage effects in a developing country

The available empirical minimum wage literature, which is mostly based on US evidence, is not very useful for analyzing developing countries, where the minimum wage affects many more workers and labour institutions and law enforcement differ in important ways. The main contribution of this paper is to present new empirical evidence on minimum wage effects for a large developing country, Brazil. Using a monthly household survey panel from 1982 to 2004 I find evidence of a wage compression effect for both the formal and informal sectors. Furthermore, I find no evidence of employment effects in either sector.     

The effects of multiple minimum wages throughout the labor market: The case of Costa Rica

This paper investigates the effects of legal minimum wages on employment and hours worked among workers covered by minimum wage legislation as well as those for whom it does not apply (the uncovered sector) in Costa Rica. This country's large uncovered sector and complex minimum wage policy, which has for decades set numerous wages throughout the wage distribution, provide a stimulating counterpoint to the U.S. framework for the analysis of the impact of minimum wages. Using 1988–2000 micro data, we find that a 10% increase in minimum wages lowers employment in the covered sector by 1.09% and decreases the average number of hours worked of those who remain in the covered sector by about 0.6%. We do not find a significant impact on hours worked in the uncovered sector. Finally, we show that despite the wide range of minimum wages, the largest impact on the employment of covered sector workers is in the lower half of the skill distribution.     

Setting the minimum wage

The process leading to the setting of the minimum wage so far has been overlooked by economists. There are two common ways of setting national minimum wages: they are either government legislated or the byproduct of collective bargaining agreements, which are extended erga omnes to all workers. We develop a simple model relating the level of the minimum wage to the setting regime. Next, we exploit a new data set on minimum wages in 68 countries having a statutory national minimum level of pay in the period 1981–2005. We find that a Government legislated minimum wage is lower than a wage floor set within collective agreements. This effect survives to several robustness checks and can be interpreted as a causal effect of the setting regime on the level of the minimum wage.     

Job and wage mobility with minimum wages and imperfect compliance

We propose a job search model with minimum wage regulations and imperfect compliance to explain the doubling of the mean and variance of hourly earnings of white males during the first 18 years of labor market experience. The model encompasses job mobility and on‐the‐job wage growth as sources of wage dynamics, and is estimated by simulated generalized method of moments using data from the National Longitudinal Survey of Youths 1979. Our estimates provide a good fit for the observed levels and trends of the main job and wage mobility data, and for the increase in the mean and variance of wages over the life cycle, as well as for the fall in the fraction of workers paid below the minimum wage. Job mobility explains 40–50% of the observed wage growth. Increases in the minimum wage and/or compliance deliver small effects on the wage distribution and the nonemployment rate. Copyright © 2010 John Wiley & Sons, Ltd.     

Noncompliance and the effects of the minimum wage on hours and welfare in competitive labor markets

This paper shows that increases in the minimum wage rate can have ambiguous effects on the working hours and welfare of employed workers in competitive labor markets. The reason is that employers may not comply with the minimum wage legislation and instead pay a lower subminimum wage rate. If workers are risk neutral, we prove that working hours and welfare are invariant to the minimum wage rate. If workers are risk averse and imprudent (which is the empirically likely case), then working hours decrease with the minimum wage rate, while their welfare may increase.     

最低工资对正规部门、非正规部门工资和就业的影响

本文根据是否遵守最低工资标准,将劳动部门分为正规部门和非正规部门。利用中国健康与营养调查（CHNS）微观数据,运用固定效应模型和Multinomial Logit模型,本文实证研究了2004年以来,最低工资对正规部门和非正规部门工资和就业的影响。研究发现：最低工资每提高1%,正规部门工资会增加0.5%,非正规部门平均工资下降统计不显著,而处于最低工资线附近的非正规部门劳动者工资下降0.77%;最低工资提高使得失业者向非正规部门流动,而非正规部门劳动者向正规部门流动,最终将有利于劳动者在正规部门就业。因此,政府在制定最低工资制度时应全面考虑最低工资标准作用效果的部门差异。     

Youth minimum wage reform and the labour market in New Zealand

This paper analyses the effects of a large reform in the minimum wages affecting youth workers in New Zealand since 2001. Prior to this reform, a youth minimum wage, applying to 16–19 year-olds, was set at 60% of the adult minimum. The reform had two components. First, it lowered the eligible age for the adult minimum wage from 20 to 18 years, and resulted in a 69% increase in the minimum wage for 18 and 19 year-olds. Second, the reform raised the youth minimum wage in two annual steps from 60% to 80% of the adult minimum, and resulted in a 41% increase in the minimum wage for 16 and 17 year-olds over a two-year period. We estimate the impact of this reform by comparing average outcomes for these two groups of teenagers, before and after the change, to those for 20–25 year-olds, who were unaffected by the reform. We find no evidence of adverse effects on youth employment immediately following the reform, but some weak evidence of employment loss by 2003. We also find evidence of a 10–20% increase in hours worked following the reform for employed 16–17 year-olds, and up to a 10% increase for employed 18–19 year-olds, depending on the specification adopted. Combined, wage, hours, and employment changes lead to significant increases in labour earnings and total income of teenagers relative to young adults. However, we also find evidence of a decline in educational enrolment, and an increase in unemployment, inactivity, and benefit receipt rates, suggesting that while the minimum wage reform increased the labour supply of teenagers, this increase was not matched by as large an increase in employment.     

The distributive and welfare effects of product and labour market deregulation

This paper studies the effects of product and labour market deregulation on wage inequality and welfare. By constructing an analytically tractable model in which the level of product market competition and the wages are endogenously distributed among sectors, I show that deregulation in goods market has mixed effects on inequality: the wage variance and the Gini index are lower, but the ratio of the highest over the lowest wage paid in the economy increases. Moreover, deregulation in labour markets raises the aggregate level of employment and the average real wage but reduces the welfare of trade unions in sectors with a low level of competition.     

Minimum wages and employment in Swedish hotels and restaurants

This paper considers the effects of union-bargained minimum wages on transitions into and out of employment in the hotels and catering industry over the period 1979–99. This industry is characterised by a high fraction of unskilled labour input, high worker turnover and binding minimum wages. The empirical approach identifies workers affected by real minimum wage increases and decreases, respectively. Job separations and accessions for the treatment groups are then contrasted to the outcomes for control groups, with wages marginally above those of the treatment groups. Unlike previous studies, this paper also considers same-period transitions for same-wage workers who are unaffected by minimum wage changes. This procedure should help to control for unobserved differences between high- and low-wage workers and is made possible by the diversified minimum wage structure of the industry. According to the results, job separations tend to increase with rising minimum wages (except for teenagers during 1993–98). The evidence regarding accessions is less conclusive.     

Do Higher Real Minimum Wages Lead to More High School Dropouts? Evidence from Maryland Across Races, 1993–2004

We explore whether higher levels of the real minimum wage have differing effects on high school dropout rates across students of various races and ethnicities (whites, African Americans, Hispanics, and Asians). Using a panel of data across Maryland counties and annual observations in 1993–2004, we found higher real minimum wages to be associated with higher dropout rates for Hispanic students, but not for other races and ethnicities. We used a variety of model specifications and explanatory variables, including real income, the unemployment rate, teen pregnancy rates, and educational attainment among adults. Several of our findings are broadly consistent with commonly reported sociological observations regarding how behavioral choices may be affected by different levels across races and ethnicities of cultural integration of recent immigrants, family cohesiveness, the value placed on education, small business ownership, and hourly (vs. salaried) employment.     

Trade Boards and minimum wages, 1909-39

Trade Boards were first established in 1909 principally to protect workers in the sweated trades'but were vastly extended under new criteria in 1918. Although the interwar Trade Boards set wage minima which were'tough'by modern standards there has been little analysis of their effects on employment. But in one sector, agriculture, there is clear evidence that minimum wage setting cost jobs. If similar effects occurred in other sectors covered by minimum wages then this could have added significantly to the burden of unemployment during the interwar years.     

Minimum Wage Myths

This paper casts doubt on the positive effects so often claimed for the recently-introduced national minimum wage by its many supporters. It attacks the notion of the minimum wage as a 'free lunch', arguing that its effects are often either negative or simply unknown. Those worst affected by its introduction are those the Minimum Wage most aims to help – the lowest income group.     

MEASURING HUMAN CAPITAL AND ITS EFFECTS ON WAGE GROWTH

Abstract Ever since Mincer, years of labour market experience were used to approximate individual's general human capital, while years of seniority were used to approximate job‐specific human capital. This specification is restrictive because it assumes that starting wages at a new job depend only on job market experience. In this paper, I investigate the effects of human capital on wage growth by using a more flexible specification of the wage equation, which allows for a rich set of information on past employment spells to affect the starting wages. In addition, I endogenize the labour mobility decision. In order to illuminate the effects of human capital accumulation patterns on wage growth, I compare counterfactual career paths for representative individuals.     

DETERMINING MINIMUM WAGES IN CHINA: DO ECONOMIC FACTORS DOMINATE?

We analyze the determinants of minimum wages in China at the regional level. We include a broad set of economic variables and consider the role of spatial spillovers, which reflect the geographical pattern of regions and can arise for several reasons, including competition between local policymakers. The analysis primarily reveals the existence of strong regional ties in the development of minimum wages. Once these spatial effects are considered, the role of economic variables in the determination of minimum wages declines, and their impact is lower than initially thought. Whereas consumption per capita and consumer prices remain significant, regular wages lose their importance when controlling for reverse causation. Although minimum wage regulation stresses the relevance of economic factors in the determination of appropriate levels, actual development is largely driven by regional dependencies. As minimum wage standards set by local officials do not fully reflect regional economic conditions, further reform should be on the agenda.     

Semi-Nonparametric Estimation of an Equilibrium Search Model

We specify and estimate an equilibrium job search model with productivity differences across labour market segments. The model allows for two types of unemployment: frictional unemployment due to search frictions and structural unemployment due to wage floors. Wage floors exist because of high unemployment benefits or binding minimum wages. The productivity distribution is estimated semi-nonparametrically along the lines of Gallant-Nychka, using Hermite series approximation. We decompose the total unemployment rate and we examine the effects of changes in the minimum wage.     

A New Keynesian model with staggered price and wage setting under learning

This paper provides a study of the implications for economic dynamics when the central bank sets its nominal interest rate target in response to variations in wage inflation. I provide results on the existence, uniqueness, and stability under learning of rational expectations equilibrium for alternative specifications of the manner in which monetary policy responds to economic shocks when nominal rigidities are present. Monopolistically competitive producers set prices via staggered price contracts, and households set nominal wages in the same fashion. In this setting, the conditions for determinacy and learnability of rational expectations equilibrium differ from a model where only prices are sticky. I find that when the central bank responds to wage and price inflation and to the output gap, a Taylor principle for wage and price inflation arises that is related to stability under learning dynamics. In other words, a moderate reaction of the interest rate to wage inflation helps to avoid instability under learning and indeterminacy.     

A SURVEY OF THE EFFECTS OF THE MINIMUM WAGE ON PRICES

Abstract.  It is well established in the literature that minimum wage increases compress the wage distribution. Firms respond to these higher labour costs by reducing employment, reducing profits, or raising prices. While there are hundreds of studies on the employment effect of the minimum wage, there are merely a handful of studies on its profit effects, and only a couple of dozen studies on its price effects. Furthermore, a comprehensive survey on minimum wage price effects is not available in the literature. Given the policy relevance of this neglected issue, in this paper we summarize and critically compare the available evidence on the effects of minimum wages on prices.     

Can a minimum wage increase employment and reduce prices in a neoclassical perfect information economy?

This paper investigates the possibility that the imposition of a minimum wage increases employment in the affected sector, measured in terms of hours of work, and lowers product prices. Unlike related prior theoretical research, I consider a neoclassical perfect information economy. Both labor and product markets are assumed to be perfectly competitive. Workers choose the number of hours of work and their effort level. Workers can potentially, but not necessarily, differ in their preferences over income, leisure, and effort. Effort is perfectly observable by the employers. The general framework that highlights the channels through which a minimum wage can increase employment and reduce prices is introduced and necessary and sufficient conditions derived. The paper also develops a number of comparative statics and some illustrative examples. The results provide a simple theoretical foundation that explains some recent findings of the empirical literature on minimum wages. Auxiliary results help explain the effects of minimum wage on the entire wage distribution in a way that is consistent with empirical findings. Finally, welfare analysis shows that worker welfare and employment tend to go in opposite directions; in particular, if employment increases after the imposition of the minimum wage, worker welfare will be reduced, though not necessarily vice versa (the opposite is true for consumer welfare). Strikingly, if a minimum wage increases worker welfare, the chief beneficiaries are not the affected workers but those with incomes that exceed the minimum wage.     

Teen employment, poverty, and the minimum wage: Evidence from Canada

In May 2007, the U.S. Congress enacted legislation, which increased the Federal minimum hourly wage from $5.15 to $7.25, over a two year time period. This increase to the minimum wage was the first in nearly a decade and was approved with the objective of alleviating poverty among low-income households. However, a higher minimum wage may result in more unemployment and poverty. We exploit time-series variation in minimum wages set by Canadian provinces between 1981 and 2004. OLS and IV results suggest that a 10% increase in the minimum wage is significantly correlated with a 3%-5% drop in teen employment. Further, a 10% rise in the minimum wage is also significantly associated with a 4%-6% increase in the percentage of families living under Low Income Cut Offs (LICOs). Difference-in-difference estimates from the 1993, 1995, and 1998 waves of the Survey of Consumer Finances (SCF) support these findings as they suggest that income earned by teens constitutes a non-trivial portion of household income for families beneath Low Income Cut Offs. Therefore, a higher minimum wage may paradoxically result in a significant negative shock to household income among low-income families.