TRAINING, JOB SECURITY AND INCENTIVE WAGES

This paper considers the optimal level of firm‐specific training by taking into account the positive effect of training on the expected duration of workers' current employment. In the framework of an efficiency wage model, a short expected job tenure represents a disamenity that reduces the penalty from shirking. As this disamenity increases, workers have an incentive to continue providing a positive level of effort only if they are compensated by a higher wage. We endogenize the employment separation rate by introducing firm‐specific training. Firm‐specific training creates a rent that is lost if the worker is separated from the firm. As a result, the firm will be more reluctant to fire its trained workforce in a recession. This implies that firm‐specific training can decrease current wages because it represents a commitment to lower future labour turnover.     

SENIORITY WAGES AND ECONOMIC GROWTH*

Economies that lack well‐developed markets for mobilizing household savings may, in some instances, grow faster than those that are financially more developed, provided that their labour markets are also characterized by seniority rather than spot wages. This occurs because of a Kaldorian redistribution effect in a model where households have finite‐horizons and where older workers, as an endogenous feature, have higher saving rates.     

VOLUNTARY WORK AND WAGES

The effects of voluntary work on earnings have recently been studied for some developed countries such as Canada, France and Austria. This paper extends this line of research to Italy, using data from the European Union Statistics on Income and Living Conditions (EU‐SILC) dataset. A double methodological approach is used in order to control for unobserved heterogeneity: Heckman and IV methods are employed to account for unobserved worker heterogeneity and endogeneity bias. Empirical results show that, when the unobserved heterogeneity is taken into account, a wage premium of 2.7 percent emerges, quite small if compared to previous investigations on Canada and Austria. The investigation into the channels of influence of volunteering on wages gives support to the hypotheses that volunteering enables the access to fruitful informal networks, avoids the human capital deterioration and provides a signal for intrinsically motivated individuals.     

WAGES,HOURS OF WORK AND JOB SATISFACTION OF RETIREMENT‐AGE WORKERS*

I analyse, theoretically and empirically, the effects of pension benefits, family conditions and the personal characteristics of older individuals on their labour supply, wages, hours worked and job satisfaction, in the framework of the Nash bargaining condition whereby an older worker and a firm bargain over employment conditions such as wages, hours of work and job investment. It is stressed that as workers become older they tend to give greater priority to the number of hours worked, work environment and type of job than to wages, and try to improve these through job investment, even at the cost of lower wages.     

OCCUPATIONAL AND INDUSTRY SPECIFICITY OF HUMAN CAPITAL IN THE BRITISH LABOUR MARKET

This paper builds on the recent literature on the importance of occupational and industry experience on wages and extends Kambourov and Manovskii's (2002) study using British data. Occupational experience is estimated to make a significant contribution to wage growth, while the evidence on industry specificity is not very supportive. The second contribution of the paper is that it assesses whether there is heterogeneity in the estimated returns to work experience across one-digit industries and occupations. The findings suggest that industry and occupational experience is important for individuals in professional and managerial jobs or jobs in the banking and finance sector.     

NON‐SCALE EFFECTS OF INTERNATIONAL TECHNOLOGICAL‐KNOWLEDGE DIFFUSION ON SOUTHERN GROWTH AND WAGES

We develop a dynamic, general equilibrium non‐scale endogenous growth model of North–South technological‐knowledge diffusion by imitation. Countries differ in levels of exogenous productivity, human‐capital levels and R&D capacity. Growth is driven by Northern innovative R&D and the South converges towards the North. Growth is also driven by human‐capital accumulation, scale effects are removed, imitation is only feasible once a threshold distance to the frontier has been attained and is dependent on the South's relative level of employed human capital and on domestic policies promoting R&D. Imitation promotes partial convergence of inter‐country wages and governs the path of intra‐South wage inequality.     

JOB FLOWS AND UNEMPLOYMENT IN AN EQUILIBRIUM UNEMPLOYMENT MODEL WITH FIRM‐SPECIFIC SKILL TRAINING*

We introduce productivity enhancing firm‐specific skill training into the labour search model in which the firm‐specific skill training intensity and the job destruction rate are endogenously determined. It is shown that the higher the intensity of such training, the lower the rates of unemployment, job creation and job destruction. The paper's model provides a theoretical framework to understand the often mentioned peculiarity of the Japanese labour market; prevalently low rates of unemployment, job creation and job destruction in Japan are due to its training system which promotes workers to acquire firm‐specific skills.     

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.     

NON‐RIGID WAGES AND MERGER PROFITABILITY REVERSAL UNDER CONVEX COSTS AND CENTRALIZED UNIONIZATION

Can a merger from duopoly to monopoly be detrimental for profits? This paper deals with this issue by focusing on the interaction between decreasing returns to labour (which imply firms’ convex costs) and centralized unionization. First, it is highlighted that a wage ‘non‐rigidity’ result applies: the post‐merger wage is higher than in the pre‐merger equilibrium. Second, it is shown that a ‘reversal result’ in relation to merger profitability actually realizes when the union is sufficiently oriented towards wages. Moreover, the higher the reservation wage, the degree of product differentiation, and the union's relative bargaining power, the higher the probability that a merger reduces profits.     

Competitive search markets with heterogeneous workers

This paper extends the concept of competitive search markets to the case with heterogeneous workers. If offers can condition on workers’ productivity as this depends on some formal qualification, the equilibrium is separating and efficient, though there is wage compression. If offers cannot condition on workers’ productivity, the nature of the equilibrium depends on the size of the workers’ productivity difference. For intermediate values of the productivity difference, separation is achieved only by paying high types an “efficiency wage” premium. We discuss several implications for wage dispersion and efficiency.     

LONG‐RUN GROWTH AND WELFARE EFFECTS OF TAX REFORM

This paper introduces an endogenously‐determined fertility rate into a Romer‐type endogenous growth model and, accordingly, investigates the effects on fertility, economic growth and social welfare of a revenue‐neutral tax reform that involves switching from an income tax to a consumption tax. We show that, in a departure from the existing literature, tax reform could be harmful, rather than favourable, to both growth and welfare, due to an endogenous fertility rate. We also conduct a simple numerical analysis to investigate under what conditions the negative effect on growth and welfare occurs.     

COMPUTER SKILLS AND WAGES*

Data from the 1993 Survey of Training and Education show that 52 per cent of males and 60 per cent of females had at some time used a computer. An analysis using earnings functions reveals that computer usage is associated with a wage premium of between 12 and 16 per cent. Experiments show that omission of a variable recording computer usage from a wage equation will result in a bias of between 10 and 15 per cent in the estimated return to a year of schooling and similar distortion to the estimated return to experience.     

MINIMUM WAGES AND HEALTHY DIET

A healthy diet is often unaffordable for low‐income individuals, so income‐lifting policies may play an important role in not only alleviating poverty but also in improving nutrition. We investigate if higher minimum wages can contribute to an improved diet by increasing consumption of fruits and vegetables. Exploiting recent minimum wage increases in the United States and using individual‐level data from the Behavioral Risk Factor Surveillance System we identify the causal effect of minimum wage changes on fruit and vegetable intake among low‐wage individuals in a triple‐differences framework. The estimated minimum wage elasticity of fruit and vegetable consumption equals 0.12. (JEL I12, I18, J38)