Tax evasion and work in the underground sector

A bivariate random effect panel data model is estimated for male labour supply in the taxable and the non-taxable sectors in Denmark. The wage rates and non-labour income have significant effects on labour supply in both sectors. The average own wage elasticity with respect to underground labour supply is found to be small, 0.02, while the cross price elasticity from regular wages is larger, − 0.52. Simulations of potential tax reforms show that a reduction of the marginal taxes has minor effects on male labour supply to the untaxed sector, while the effect on male labour supply to the taxed sector is larger.     

Progressive Taxes and the Labour Market: Is the Trade–off Between Equality and Efficiency Inevitable?

Does an income tax harm economic efficiency more the more progressive it is? Public economics provides a strong case for a definite ‘yes’. But at least three forces may pull in the other direction. First, low–wage workers may on average have more elastic labour supply schedules than high–wage workers, in which case progressive taxes contribute to a more efficient allocation of the total tax burden. Second, in non–competitive labour markets, progressive taxes may encourage wage moderation, and hence reduce the equilibrium level of unemployment. And third, if wage setters have egalitarian objectives, progressive taxes may reduce the need for redistribution in pre–tax wages, and hence increase the demand for low–skilled workers. This paper surveys the theoretical, as well as the empirical literature about labour supply, taxes and wage setting. We conclude that in a second best world, the trade–off between equality and efficiency is not always inevitable.     

Overeducation, wages and promotions within the firm

We analyse data from personnel records of a large firm producing energy and telecommunication and test for the effect of deviations between required and attained education of workers. Required education is measured as hiring standards set by the firm. We find the usual effects of over- and undereducation in a wage regression, thus rejecting the argument that such effects are exclusively due to firm fixed effects. Distinguishing, within the firm, between a sheltered internal labour market and an exposed external labour market, we find that at the internal labour market over- and undereducation significantly affect career development, in particular at younger ages, but that such effects are mostly absent at the firm's external labour market.     

Is training more frequent when the wage premium is smaller? Evidence from the European Community Household Panel

According to Becker [Becker, G., 1964, Human Capital, NBER, New York], when labour markets are perfectly competitive, general training is paid by the worker, who reaps all the benefits from the investment. Therefore, ceteris paribus, the greater the training wage premium, the greater the investment in general training. Using data from the European Community Household Panel, we compute a proxy of the training wage premium in clusters of homogeneous workers and find that smaller premia induce greater incidence of off-site training, which is likely to impart general skills. Our findings suggest that the Becker model provides insufficient guidance to understand empirical training patterns. Conversely, they are not inconsistent with theories of training in imperfectly competitive labour markets, in which firms may be willing to finance general training if the wage structure is compressed, that is, if the increase in productivity after training is greater than the increase in pay.     

Migration and gender differences in the home labour market: Evidence from Albania

This paper examines the role of migration in affecting the labour market opportunities of male and female household members left behind. We address this question by analyzing the impact of international migration flows from Albania, where migration is a massive and male-dominated phenomenon. We find that the labour supply of men and women responds differently to current and past migration. Controlling for the potential endogeneity of migration, estimates show that having a migrant abroad decreases female paid labour supply while increasing unpaid work. On the other hand, women with past family migration experience are significantly more likely to engage in self-employment and less likely to supply unpaid work. The same relationships do not hold for men. These results suggest that while left-behind women in Albania may take on the extra burden associated with the migration of male family members, they gain employment opportunities upon their return.     

Is Child Work Necessary?*

This article investigates the hypothesis that child labour is compelled by poverty. It shows that a testable implication of this hypothesis is that the wage elasticity of child labour supply is negative. Using a large household survey for rural Pakistan, labour supply models for boys and girls in wage work are estimated. Conditioning on non-labour income and a range of demographic variables, the article finds a negative wage elasticity for boys and an elasticity that is insignificantly different from zero for girls. Thus, while boys appear to work on account of poverty compulsions, the evidence for girls is ambiguous.     

Labour supply and commuting time: An empirical study

We estimate a simple labour supply model that incorporates commuting time in a utility maximizing framework. Housing prices are assumed to vary with commuting time, and the elasticity of housing prices with respect to the latter is estimated to be about 10 percent. Using this elasticity estimate the price of commuting time averaged over all individuals is $3.22 while the wage rate is $4.72; thus commuting time is implicitly valued at about two-thirds of the wage rate on average. As far as work hours are concerned, almost all individuals are on the backward bending part of their labour supply curve.     

Working hours in Chinese enterprises: evidence from matched employer–employee data

The purpose of this article is to explore the factors that are correlated with hours worked in China. A distinguishing feature of the study is that we used representative‐matched employer and employee data. Hence, in addition to the usual worker characteristics examined in conventional economic models of labour supply, we also took into account the influence of firm characteristics and policies on the number of hours worked. The results suggested that in addition to the hourly wage rate, labour supply characteristics and human capital characteristics of the individual, firm‐level differences are important in explaining variation in weekly hours worked in Chinese firms. In particular, our results suggested that there is a norm of longer working hours in firms that employ a high proportion of female and migrant workers, that hours worked are less in firms which pay overtime and that hours worked are less in firms in which labour disputes have disrupted production. The policy implications of Chinese firms reducing hours worked were discussed.     

Seasonality and Wage Responsiveness in a Developing Agrarian Economy

This paper studies the wage responsiveness of labour supply and demand, simultaneously addressing the twin issues of the non-clearing of developing rural labour markets and seasonality. It employs a data set pertaining to south-central India, and limits itself to the agricultural market for daily-rated labour (by far the predominant form of wage contract in the sample villages). Estimating a theoretically robust and empirically justified disequilibrium model of the agricultural labour market, we find no evidence of backward-bending supply curves or 'vertical' demand curves, contrary to findings in the literature. Further, while the agricultural labour market appears to be in equilibrium during the kharif (or rainy) season, it manifests excess supply in the rabi (or post-rainy) season.     

Egyptian men working abroad: Labour supply responses by the women left behind

Female labour force participation has remained low in Egypt. This paper examines whether male international migration provides a leeway for women to enter the labour market and/or to increase their labour supply. In line with previous studies, we find a decrease in wage work particularly in urban areas. However, women living in rural areas and affected by migration are much more likely to be employed in non-wage activities (i.e. unpaid family work) and subsistence work compared to women in non-migrant households. Furthermore, we find evidence that this labour supply response is driven by the household's need to replace the migrant's labour rather than by a loosening of a financing constraint on family enterprises made possible by the flow of remittances.     

跨市场上市公司审计定价研究

本文从我国跨市场上市公司审计师选择的特点出发,考察了境内外审计市场不同需求弹性对审计收费的影响,并对协同效应和范围经济对审计定价的影响进行了研究。结论表明,当审计师对境外报表进行审计时,“四大”的审计收费显著高于非“四大”。而当会计师事务所对境内报表进行审计时,“四大”的审计定价与非“四大”相比无显著差异。结论验证了“四大”不同市场不同定价的竞争策略,如果进行审计的会计师事务所之间可以实现协同效应或范围经济,从而能节约跨市场上市公司的时间和精力,上市公司将愿意付出更多的审计费用。结论支持了境内会计师事务所可以通过与境外会计师事务所建立联系构筑竞争优势的策略。     

How do European firms adjust their labour costs when nominal wages are rigid?

Although workers' nominal wages are seldom cut, firms have multiple options available if they require adjustments in their wage bills. We broaden the analysis of relative (in)flexibility in labour costs by investigating the use of other margins of labour cost adjustment at the firm level beyond base wages. Using data from a unique survey, we find that European firms make extensive use of other components of compensation to adjust the cost of labour. Interestingly, firms facing base wage rigidity are more likely to use alternative margins of labour cost adjustment; therefore there appears to be some degree of substitutability between wage flexibility and the flexibility of other cost components. Changes in bonuses and non-pay benefits are some of the potential margins firms use to reduce costs. We also show how the margins of adjustment chosen are affected by unionisation and firm and worker characteristics.     

Is tax progression really good for employment? A model with endogenous hours of work

This paper discusses the effect of tax progression on wage setting and employment in a unionised labour market. Recent contributions to this field argue that tax progression paradoxically enhances employment if wage setting is subject to collective bargaining. In this literature, individual hours of work are usually assumed to be exogenously given. We show that the positive employment effect of tax progression can be generalized to a model with a positive labour supply elasticity of individual workers. However, the wage-moderating effect of tax progression does not unambiguously carry over to a world where the union may fix both wages and individual hours of work. In this framework, the union reacts to tax progression by cutting individual working time. The wage rate, however, may decrease or increase. If the wage rate increases, the number of employed workers may decline despite the reduction in hours of work.     

How flexible are wages in EU accession countries?

The transition to a market economy and increased economic integration have fostered regional disparities in Central and Eastern European countries (CEECs). This paper investigates whether and to what extent wages could act as an equilibrating mechanism in these countries by adjusting to local market conditions. Using regional data for the 1990s, we estimate static and dynamic wage curve models for Bulgaria, Hungary, Poland and Romania. We find empirical evidence indicating that regional average earnings adjusted to local unemployment rates in Bulgaria, Hungary and Poland. This result suggests that in these countries wages could help equilibrate labour markets following demand shocks. In the case of Romania, the unemployment elasticity of pay was not significantly different from zero.     

Teacher shortages and the business cycle

The ability of the public sector to recruit skilled workers is important for the quality of public sector services. Centralized and rigid pay systems in the public sector might reduce labour supply and lead to shortages of qualified personnel in areas and periods with strong outside labour markets. This paper shows that teacher shortages measured by the share of teachers without approved education are strongly procyclical in Norway. Using a large panel of Norwegian local governments for 1981–2002 and exploiting the rigid wage system, we find a sizeable negative relationship between teacher shortages and the regional unemployment rate.     

Holdup in oligopsonistic labour markets - a new role for the minimum wage

We consider a labour market model of oligopsonistic wage competition and show that there is a holdup problem although workers do not have any bargaining power. When a firm invests more, it pays a higher wage in order to attract workers from competitors. Because workers participate in the returns on investment while only firms bear the costs, investment is inefficiently low. A binding minimum wage can achieve the first-best level of investment, both in the short run for a given number of firms and in the long run when the number of firms is endogenous.     

Wages,employment, labour turnover and the accessibility of local labour markets

In this paper, we extend a dynamic efficiency wage model to the case of multiple local labour markets that interact through migration. Firms are concerned about turnover costs. The quitting behaviour of workers is a function of local labour market conditions, non-wage income and the costs and benefits of migration to other local labour markets. A synthetic micro sample of 20,302 observations from the 1986, 1991 and 1996 New Zealand Censuses of Population and Dwellings provides evidence supporting the theory. Across subgroups, the wages of workers with relatively inelastic local labour supply and/or lower geographical mobility are relatively more responsive to changes in the local employment rate. The evidence is consistent with the notion that local employers engage in monopsonistic competition with respect to the employment of such workers.     

Equilibrium unemployment with outsourcing under labour market imperfections

We study the effects of international outsourcing on equilibrium unemployment in a high-wage economy with labour market imperfections. We demonstrate, consistent with empirical results, that the wage elasticity of labour demand is increasing as a function of outsourcing. Furthermore, we show that a production mode with more outsourcing reduces the negotiated wage in a high-wage country with labour market imperfections if the relative bargaining power of the labour union is sufficiently high. Under such circumstances outsourcing reduces equilibrium unemployment. Finally, we characterize the optimal production mode showing that stronger labour market imperfections induce a production mode with more outsourcing.     

Testing labour supply and hours constraints

This paper provides empirical evidence that, at a given wage, individuals cannot freely choose the number of hours they work. The novelty relative to the existing literature (e.g. [Altonji, J., Paxson, C., 1986. Job characteristics and hours of work. In: Ehrenberg, R. (Ed.), Research in Labor Economics, vol. 8. Westview Press, Greenwich, 1–55]) is twofold. We use the US data on prime age males from the National Longitudinal Survey of Youth and we account for endogenous switching between jobs. Our results are: (i) the variance of the change in hours worked is more than six times higher for movers than for stayers; (ii) the intertemporal labour supply elasticity is positive and significant for movers and zero for stayers. This is further evidence for the presence of hours constraints. One important implication is that estimates of the labour supply elasticity that ignore these constraints are biased.     

Broad-based stock options: before and after the market downturn

We examine labour productivity in small, medium and large firms that broadly distribute stock options under starkly different market conditions – during the bull (1995–7) and bear (2000–2) stock markets. We find greater labour output in both upward and downward markets in all firm size categories, with the exception of small firms in a declining market, where the productivity is also greater, but the statistical significance of the result is weak.