The Econometrics and Economics of the Employment Effects of Minimum Wages: Getting from Known Unknowns to Known Knowns

I discuss the econometrics and the economics of past research on the effects of minimum wages on employment in the United States. My intent is to try to identify key questions raised in the recent literature, and some from the earlier literature, which I think hold the most promise for understanding the conflicting evidence and arriving at a more definitive answer about the employment effects of minimum wages. My secondary goal is to discuss how we can narrow the range of uncertainty about the likely effects of the large minimum wage increases becoming more prevalent in the United States. I discuss some insights from both theory and past evidence that may be informative about the effects of high minimum wages, and try to emphasize what research can be done now and in the near future to provide useful evidence to policy‐makers on the results of the coming high minimum wage experiment, whether in the United States or in other countries.     

90年代以来劳动力价值问题研究述评

文章概述了90年代以来理论界在劳动力价值的构成范围、劳动力价值的实现与按劳分配、智力劳动力工资的理论解释问题上提出的许多新的观点并作出了简要的评论。随着社会主义市场经济的发展，还有许多问题，如：劳动力价格背离价值的理论问题，劳动力价格高于价值的现实问题，劳动力的特殊性对劳动力价值的影响等值得深入探讨，以使劳动价值论更好地指导社会主义市场经济实践。     

A monetary business cycle model with unemployment

To reproduce key features of the post-war U.S. data, most monetary business cycle models must assume there are high price markups and that agents have high labour supply elasticities despite the existence of contradictory microeconomic evidence. This paper eliminates the need for these assumptions by introducing imperfectly observed effort into a limited participation model. The estimated model is better able to capture the sluggish price response to a monetary policy shock than the standard model, and is consistent with evidence regarding the qualitative responses of the U.S. economy to technology shocks, fiscal policy shocks and monetary policy shocks.     

Reinterpreting the performance of immigrant wages from panel data

Immigrants differ from the native born in terms of unobserved factors, such as motivation, and observed factors, including those related to the interruption of labour market activity and earning capacity, which may bias estimates of immigrant integration. Using panel data from the Survey of Labour and Income Dynamics, we show that using potential experience, rather than actual experience, exaggerates estimates of the disruption and recovery caused by immigration. More importantly, we find support for omitted variables bias, arising from unobserved fixed effects. Instrumental variable estimates for both pooled and separate samples of immigrant and native born men demonstrate a wage disadvantage for immigrants upon entry that persists through their lifetime. Standard estimates of a modest wage advantage for the children of immigrants also suffer from omitted variables bias arising from unobservables. Contrary to most of the literature to date, our instrumental variable estimates which allow for unobservable fixed effects suggest that immigrants never catch up to otherwise comparable native born workers, but their children do just as well. We would like to thank Statistics Canada for permitting access to the data and solving associated technical problems, the Prairier Centre for Research on Immigration and Integration for financial assistance, and Peter Schnabl for excellent research assistance. An earlier version of this paper was presented to the 10th International Conference on Panel Data in Berlin, July 5–6, 2002. The authors take sole responsibility for errors, omissions and interpretation of the data.     

Efficiency wages and union-firm bargaining with private information

We consider efficiency wage effects in a union-firm bargaining model with private information. We show that an increase in the efficiency wage effects does not necessarily increase the wage level at equilibrium, even when the wage bargaining with private information is close to one with complete information. However, if it is commonly known that the firm is stronger than the union and the demand is sufficiently elastic, then an increase in the efficiency wage effects increases for sure the wage at equilibrium.JEL Classification: J41, J50, J52We thank Juan Dolado and two anonymous referees for valuable comments. Vincent Vannetelbosch is Chercheur Qualifié at the Fonds National de la Recherche Scientifique. The research of Ana Mauleon has been made possible by a fellowship of the Fonds Européen du Développement Economique Régional (FEDER). Financial support from the Belgian French Communitys program Action de Recherches Concertée 99/04-235 (IRES, Université catholique de Louvain) is gratefully acknowledged.     

实际汇率、工资和就业--对中国贸易部门和非贸易部门的实证研究

在同时考虑贸易部门和非贸易部门的情况下,实际汇率贬值会增加贸易部门就业,但会减少非贸易部门就业,对实际工资的影响则是不确定的.按照理论分析的结果,文章对人民币实际汇率和中国两部门实际工资及就业的关系进行协整检验,结果发现:人民币实际汇率贬值显著增加贸易部门就业,但非贸易部门就业对实际汇率变动不敏感,而两部门的实际工资和实际汇率之间则都没有协整关系存在.进一步检验发现实际汇率变动对就业在贸易和非贸易部门之间的结构也没有影响.总的结论认为,即使考虑到非贸易部门,人民币实际汇率升值对整个就业也是不利的,而贬值有利于整个就业.     

SHIRKING,STANDARDS AND THE PROBABILITY OF DETECTION

By relaxing the common efficiency wage assumption of exogenous shirking detection probabilities, we demonstrate how standards and efficiency wages are related. In a more general setting where the probability of detection depends upon the equilibrium effort level of non‐shirkers, we show that the uniformly positive (negative) supply‐side relationship between wages (unemployment insurance) and effort is no longer guaranteed. Profit maximization on the part of the firm, however, ensures that effort will depend positively (negatively) on wages (unemployment insurance) in equilibrium.     

Decomposing growth in the gender wage gap in urban China: 1989–2011

This paper examines trends in the gender wage gap observed in urban China during the post‐reform era. Using China Health and Nutrition Survey data, changes to the gap between 1989 and 2011 are analyzed using the Wellington decomposition method. While women's gains in observed characteristics have narrowed the wage gap, they are more than offset by changes in the returns to these characteristics. Men's returns to potential labour market experience have grown particularly rapidly, relative to women's, and this represents the single largest contributing factor towards the widening of the gender wage gap. Further investigation explores gender wage patterns through the dimensions of occupation, ownership sector and birth cohort. Taken together, my results raise concerns that China's urban labour market may increasingly disincentivize women's long‐term labour force attachments.     

Labour market adjustment to third-party competition: Evidence from Mexico

China's exports reduce wages in importing countries, but few studies have looked at competition in third-party markets. We examine labour market outcomes in Mexico's apparel and textile sectors associated with US apparel and textile imports from China. Using data on US imports in conjunction with quarterly Mexican labour force surveys, we show that US imports from China are associated with a reduction of employment in Mexico's apparel and textile sectors. These effects are the most pronounced for the least educated. Wages were not impacted on net except for possibly the poorest which would indicate stronger local labour market ties in the left tail of the wage distribution. Finally, the effects of trade-induced demand shocks dissipate after about two quarters indicating low firm-level adjustment costs.     

Individual labour income,stock prices and whom it may concern

In this paper, a panel model which describes the relationship between individual labour income and stock prices in Germany is estimated. The specification allows the individuals to cluster concerning the model parameters that describe first the individual labour income dynamics and second the relationship between the individual labour income and financial markets. Methodically, a Bayesian model-based non-Gaussian panel data approach, proposed by Juarez and Steel (2010a), is used. A group of individuals with a high cluster assignment probability is found. The characteristics of this group, whose individuals share the same autoregressive dynamics and a common, relatively high dependence on financial markets, are investigated further. It can be shown that this group has a statistically significantly different partition of the major occupational groups. This leads to implications for various branches of the literature, such as the pricing of human capital contracts, the hedging of individual income risk, portfolio optimization or asset pricing.