THE ECONOMICS OF HEALTH AND SAFETY AT WORK: AN INTERDICIPLINARY REVIEW OF THE THEORY AND POLICY

Abstract This paper engages in an interdisciplinary survey of the current state of knowledge related to the theory, determinants and consequences of occupational safety and health (OSH). It first describes the fundamental theoretical construct of compensating wage differentials, which is used by economists to understand the optimal provision of OSH in a perfectly competitive labour market. The plethora of incentives faced by workers and firms in job and insurance markets that determine the ultimate level of OSH are discussed in detail. The extensive empirical evidence from the hedonic wage and stated choice approaches used to assess the value of OSH is reviewed. The causes of inefficiency and inequity in the market for OSH, such as externalities, moral hazard in compensation insurance, systematic biases in individual risk perception/well‐being and labour market segregation are subsequently examined. The implications of government intervention and regulation for tackling the aforementioned inefficiencies in OSH are then considered. Finally, the survey identifies areas of future research interests and suggests indicators and priorities for policy initiatives that can improve the health and safety of workers in modern job markets.     

Regional Efficiency Wages: Are They a Source of Real Earnings Differentials?

This paper investigates the role of spatial efficiency wage premiums as a partial explanation for both inter-industry and geographic wage differentials. The empirical approach is based on an analysis of panel data for six select manufacturing industries operating within specific (U.S.) states. Besides testing for the existence of a regional "wage curve," this research adds to the evidence on traditional determinants of spatial wage differentials. An explicit treatment of regional cost-of-living conditions is unique to the analysis; also, industry wage structures are accounted for in explaining regional wage differences. The findings here contribute to an initial body of evidence on regional efficiency wages. The empirical evidence indicates that the relationship between regional wages (nominal or real) and the local unemployment rate is much more complex than implied by the wage curve.     

Analyzing the gender pay gap

Empirical research on gender pay gaps has traditionally focused on the role of gender-specific factors, particularly gender differences in qualifications and differences in the treatment of otherwise equally qualified male and female workers (i.e., labor market discrimination). This paper explores the determinants of the gender pay gap and argues for the importance of an additional factor, wage structure, the array of prices set for labor market skills and the rewards received for employment in favored sectors. Drawing on our previous work we illustrate the impact of wage structure by presenting empirical results analyzing its effect on international differences in the gender gap and trends over time in the gender differential in the U.S.     

Gender Pay Gap in Poland

In this paper we examine the gender pay gap in Poland over 1987–1996, i.e., shortly before and during the transition to market economy. The principle source of data used throughout the paper is the Household Budget Survey conducted by the Polish Central Statistical Office. The study documents three major results. First, the transition to market economy in Poland favored women substantially in terms of relative earnings differentials. The gender pay gap decreased by 10.2 log% points and the position of mean female in male wage distribution went up by 9.9 percentiles over 1987–1996. By 1995, the values of these measures reached the level observed in industrial economies such as the U.K., Austria, Italy or Australia. Second, rising relative skills of women and rising returns to skills explain about half of the fall in the gender pay gap over 1987–1996. Third, the pay gap did not follow a smooth adjustment process. 1989, the year of the first democratic parliamentary elections, which resulted in forming the first non-communist government, saw the most spectacular change, although actual market reforms began one year after. The changes in the early phase of the transition were mostly driven by sudden shifts in relative wages and employment across industries. Afterwards, the pay gap measures stabilized, partly because rising overall wage inequalities offset the advantages of females due to observed skills. This revised version was published online in August 2006 with corrections to the Cover Date.     

The responsiveness of wages to labour market conditions in the UK

If wages are more flexible in the sense that pay is more responsive to labour market conditions, this has important implications for the workings of the aggregate economy. First, the real fluctuations generated by both demand and supply shocks are smaller, and second, the economy can operate at a higher level of activity relative to potential without adverse inflationary consequences (i.e., the NAIRU is lower). Our empirical analysis of wage flexibility suggests that UK wages have become more responsive to labour market conditions since the mid-1980s, at least relative to the previous decade. Furthermore, this has happened within certain industrial sectors. Finally, a part of this move towards greater responsiveness has been due to the decline in national pay bargaining over the relevant period. However, the majority of this change is due to some other factors.     

Wage mobility: do institutions make a difference?

This paper checks empirically the assertion that strict labour market regulation leads to low wage mobility, addressing an apparent puzzle. Indeed, most economic reasoning links a combination of regulations in the labour market to low wage flexibility and mobility, but the scarce empirical evidence available challenges that view. I focus on Portugal, one of the most regulated labour markets in Europe. The evidence gathered indicates that an aggregate view—of minimum wage enforcement, unionisation rates and extension of collective bargaining contracts—provides a misleading idea of the actual constraints imposed by the institutional framework on wage setting. Instead, micro conditions at the firm level play a major role shaping wage mobility in Portugal. Some comparisons with the UK, traditionally pointed out as a flexible labour market, are provided. Remarkable similarities in mobility level and trend are detected between the two countries, further suggesting that a regulated institutional framework does not necessarily reduce individual mobility in the wage distribution.     

Reproducing low‐wage labour: capital accumulation,labour markets and young workers

Drawing on evidence from Greater Manchester, this article examines how structural changes in capital accumulation have created particular labour market outcomes, which have led to young people becoming a source of cheap labour for the growing low‐wage service economy. Greater Manchester has been selected as a case study because of the sectoral composition of its labour market and because levels of low pay for young workers are above the national low‐pay average of 40 per cent. The research reveals that it is necessary to move beyond sociological explanations that concentrate on the ‘essential youthfulness’ of young people and instead draw on analytical categories from political economy in order to understand the structural causes of young people's material circumstances.     

The problem with pay flexibility: changing pay practices in the UK health sector

This paper critically assesses models and policies of pay flexibility as applied to the public sector. Examination of the arguments for greater pay flexibility across three dimensions - external labour market flexibility, organizational flexibility, and macroeconomic flexibility - reveals a number of weaknesses, rooted in a failure to problematize the conflicting motives for greater pay flexibility in the context of pressures internal and external to the organization. An alternative 'model' of changing pay systems is developed and applied to the case of the UK health sector where there have been attempts to introduce various forms of flexible local pay arrangements. Drawing on interviews conducted during the mid-1990s with personnel and HRM managers at fifteen NHS Trusts, a number of issues are examined, such as: the impact of differential external labour market conditions of workers on the development of strategies designed to tie local pay to improved performance; the introduction of performance-related pay as a means to institutionalize wider earnings differentials within the organization; and the potential conflict between pressures to link local pay structures with local labour market conditions, on the one hand, and customary employee-held norms that link pay to occupational skills and professional status, on the other.     

Gender earnings gap: the role of firm specific effects

The gender earnings differential is an intensely studied issue in labour economics. However, existing studies do not examine how the wage policies of firms affect gender earnings differentials. This paper uses employer–employee linked data to address this issue. The Juhn et al. [Juhn, C., Murphy K., Pierce, B., 1991. Accounting for the slowdown in black–white wage convergence, in M.H. Kosters, ed. Workers and Their Wages, AEI Press, 107–143] decomposition methodology is extended to incorporate the decomposition of firm fixed effects. It is found that, on average, firms' wage policies are associated with a significant narrowing of the gender earnings gaps. Further analysis indicates that firms which are more likely to have narrower gender earnings gaps are those subject to strong market competition, find it easy to identify labour productivity at the individual level, and with no enterprise level wage bargaining.     

Labour market segmentation and wage dynamics

The article contains results of a quantitative empirical investigation into the effects of labour market segmentation on wage dynamics in total industry as well as in several industrial branches in West Germany. By testing correlations between several indicators of earnings and the labour market it is shown that wage dynamics, in so far as they are determined by shop floor bargaining, can be explained at least as well and partly even better by indicators of certain partial labour markets than by conditions of the general labor market (i.e. the traditional Philipps approach).     

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.     

THE RETURNS TO ENDOGENOUS HUMAN CAPITAL IN PAKISTAN'S RURAL WAGE LABOUR MARKET

This paper estimates the private returns to human capital in Pakistani rural labour markets. The rich data used permit inclusion of several dimensions of human capital and control for endogeneity resulting from investment in human capital. The results suggest that, without data on determinants of human capital, it would not be possible to disentangle the separate effect of each dimension of human capital on wage differentials nor to distinguish human capital explanations for wage differentials from signalling and credentialist models. With control for endogeneity of human capital and selectivity into wage employment, cognitive achievement, but not schooling attainment separate from cognitive achievement nor long-run health status, affects wage differentials.     

Skills and labour incomes: how unequal is Italy as part of the Southern European countries?

This paper performs a comparative investigation of the effects of the Great Recession on the labour market structure and wage inequality in certain countries in Southern Europe (Greece, Italy, Portugal, and Spain). By exploring the intensity of the decline of middle-skill jobs during the years 2005–2013, which makes it possible to sketch what the labour market structure has set for itself (i.e., job polarisation, upgrading or neither), the objective is to relate these changes to wage inequality and its leading determinants. Through the Recentered Influence Function regression of the Gini index on EU-SILC data, Italy is compared to each selected country in order to evaluate how much of the spatial inequality gap is accounted for by the endowment in employee characteristics (composition effect) rather than the capability of each country’s labour market to reward these characteristics (wage structure) and, second, to identify those factors that are quantitatively more significant in making differentials. In brief, Italy is less unequal than the other Southern European countries. A larger amount of its “inequality advantage” depends on the wage structure. That is, the capacity of the country’s labour market in rewarding individual endowments is more important than the ways in which they are distributed across space.     

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.     

Public-sector pay in China: 1949–2001

Despite the quantitative and qualitative significance of the public sector in China, insufficient studies have been carried out to advance our knowledge of its pay policy and practice and any changes that may have taken place in the wake of the market economy. This paper provides an overview of the three major reforms in China's public-sector pay in the last five decades and assesses its likely impact on public-sector employees' income in relation to that of workers in enterprises. It focuses on the role of the state in the pay determination process, factors influencing the wage distribution, changes in pay structure and grading systems and causes for earning differentials. It reveals a very different approach to pay determination from those more familiarly seen in the UK and indeed Europe and the US. The exploration of the conflicts and tensions characteristic of the public-sector pay system in China will enhance our understanding of the pressures and dilemmas facing different governments.     

A Meta‐Analysis of the International Gender Wage Gap

Abstract.  Since the early 1970s, a number of authors have calculated gender wage differentials between women and men of equal productivity. This meta‐study provides a new quantitative review of this vast amount of empirical literature on gender wage differentials as it concerns not only differences in methodology, data, and time periods, but also different countries. We place particular emphasis on a proper consideration of the quality of the underlying study which is done by a weighting with quality indicators. The results show that data restrictions – i.e. the limitation of the analysis to new entrants, never‐marrieds, or one narrow occupation only – have the biggest impact on the resulting gender wage gap. Moreover, we are able to show what effect a misspecification of the underlying wage equation – like the frequent use of potential experience – has on the calculated gender wage gap. Over time, raw wage differentials worldwide have fallen substantially; however, most of this decrease is due to better labor market endowments of females.     

Public–private sector wage differentials and the business cycle

This paper uses microeconomic data for the period from 1990 to 2004 to examine the relationship between public–private sector wage differentials and labour market conditions in Finland. The results show that the public sector wage premium is strongly counter-cyclical. On average, a 10 percent increase in the local unemployment rate increases the public–private sector wage gap by one percent. Separate analyses by government sector and quantiles of the distribution of wages reveal that it is local government workers and those working at lower skill levels who benefit more from increasing unemployment rate. The paper also exploits the longitudinal structure of the data to examine whether the results are constant over time. These results indicate that the cyclical pattern primarily emerges in years with deteriorated labour markets.     

Trade Liberalization and Poverty in Ecuador: A CGE Macro-Microsimulation Analysis

Cross-country analysis of the aggregate growth-poverty link is likely to miss important country-specific detail and possible offsetting forces in the underlying labour market adjustment process. This paper combines a CGE model analysis with a microsimulations approach to analyse the effects of trade liberalization on poverty and income distribution in Ecuador. The CGE model enables us to disentangle the general equilibrium effects of various trade policy scenarios on sector output, employment, factor incomes and household consumption. However, as is typical of CGE models, this analysis only provides distribution results for fairly aggregated groups of workers and a reduced number of representative households. The microsimulations approach adds the full distribution to the analysis and allows simulation of the effects of trade reform on the job status and remuneration of individual workers and thereby on household income distribution and poverty. The macro- microsimulation results indicate that the trade opening in Ecuador induced mild aggregate welfare gains, but rising income inequality due to rising wage differentials between skilled and unskilled workers implies virtually no poverty-reducing effect from trade liberalization.     

EU Labour Markets and Monetary Union

How can European labour markets cope with a single currency? The single currency success story is the US, which has maintained low unemployment rates both in the country as a whole and in individual regions. But Richard Jackman and Savvas Savouri argue this has been achieved by massive migration of workers from depressed to prosperous areas. In Europe migration within countries is quite low and between countries essentially non-existent. Thus in Europe, unlike in the US, the adjustment to national or regional labour market shocks will depend on wage flexibility. Unhappily wages in Europe are not very flexible, particularly in conditions of low inflation, and the single currency may make them even less so. The prospect for depressed areas is thus bleak.     

The rhetoric and reality: employer responses to the national minimum wage

The national minimum wage (NMW) was introduced to Britain in April 1999 amid much speculation. This paper considers the political reasons for introducing the NMW and the economic effects of doing so. It also addresses the issue of the additional costs created by the NMW and the strategies adopted by employers to defray them. The paper provides evidence from the hotel sector that suggests some wage gains but no significant disemployment effects. The value of conventional labour market models as predictive tools is questioned.