Employment Protection and the Incidence of Unemployment: A Theoretical Framework

Abstract. The present paper aims to analyse the effects of employment protection on a heterogeneous labour force. To this end, a standard matching model with employment protection has been extended to allow for the existence of two types of workers differing from each other only in the probability of becoming less productive while holding a job. In working out the model it turns out that in equilibrium workers with a relatively higher probability of becoming less productive face both a higher turnover and a longer duration of unemployment. Therefore, employment protection here raises the unemployment rate of this worker category, a result which looks consistent with consolidated evidence but contrasts with standard theoretical results.     

Search and Rest Unemployment

This paper develops a tractable version of the Lucas and Prescott (1974) search model. Each of a continuum of industries produces a heterogeneous good using a production technology that is continually hit by idiosyncratic shocks. In response to adverse shocks, some workers search for new industries while others are rest unemployed, waiting for their industry's condition to improve. We obtain closed‐form expressions for key aggregate variables and use them to evaluate the model's quantitative predictions for unemployment and wages. Both search and rest unemployment are important for understanding the behavior of wages at the industry level.     

Inequality and Unemployment in a Global Economy

This paper develops a new framework for examining the determinants of wage distributions that emphasizes within‐industry reallocation, labor market frictions, and differences in workforce composition across firms. More productive firms pay higher wages and exporting increases the wage paid by a firm with a given productivity. The opening of trade enhances wage inequality and can either raise or reduce unemployment. While wage inequality is higher in a trade equilibrium than in autarky, gradual trade liberalization first increases and later decreases inequality.     

Liquidity in Asset Markets With Search Frictions

We develop a search‐theoretic model of financial intermediation in an over‐the‐counter market and study how trading frictions affect the distribution of asset holdings and standard measures of liquidity. A distinctive feature of our theory is that it allows for unrestricted asset holdings, so market participants can accommodate trading frictions by adjusting their asset positions. We show that these individual responses of asset demands constitute a fundamental feature of illiquid markets: they are a key determinant of trade volume, bid–ask spreads, and trading delays—the dimensions of market liquidity that search‐based theories seek to explain.     

Sectoral Employment Shifts and Unemployment

ABSTRACT: This paper provides additional insight on the Lilien 1982 sectoral shift hypothesis (Lilien (1983),Abraham and Katz (1986),Samson (1986),Neelin (1987)) by applying it to Swedish data.Lilien claimed that part of the cyclical variation in unemployment is caused by structural shifts in sectoral employment demand. We find some evidence in favour of Lilien‘s notion. Greater sectoral shocks partly result in higher unemployment in Sweden. When extending the sectoral shift approach, controlling for labour market support, the evidence in favour of the sectoral shift hypothesis is weaker.     

Modelling Incomplete Spells of Unemployment and Employment

ABSTRACT: The procedure used to analyse a data set which includes only censored or incomplete spells is examined in this paper. First of all, the distributions of incomplete spell durations are analysed without explanatory variables (such as age, gender, and so on), assuming that unobserved completed spells have a Weibull distribution. The relationships between the mean of the incomplete spells and the mean of the completed spells are reported for first-job seekers, unemployed, employed and self-employed workers. Given that the unobserved completed spells are Weibull-distributed, the unobserved heterogeneity is introduced on the scale parameter of the Weibull. The heterogeneity, considered as a variable, is analysed for a binomial or Weibull distribution. As the beginning of a spell is a retrospective datum, the recall errors are modelled including the heaping effect. Using some proportional hazards models, the methodology to study the influences of explanatory variables on spell distributions is then described, once again including both the heterogeneity and the heaping effect. On this basis, the lengths of on-going spells of unemployment for first-job seekers and unemployed workers are modelled, as well as the current job tenures of employed and self-employed workers.     

Dynamics of Female Employment and Youth Unemployment in Italy

ABSTRACT: The authors, in this article, consider the possibility of how the peak in the birth rate during the 60s could have affected the present unemployment situation. First of all the hypothesis put forward by various sources that the baby boom is the principle cause of unemployment is examined, together with how plausible this explanation is. Then some data relevant to birth rates and the subsequent employment levels in various countries is presented, and finally, a more detailed analysis of the Italian situation is given, both with regard to the baby boom and the most recent employment statistics for the different Italian areas. The authors also take a close look at the female labour market and its development over the past years, and how these figures would appear to confute the baby boom as being the sole cause responsible for present day unemployment levels.     

Labour Policy and Determinants of Employment and Wages in a Developing Economy with Labour Shortage

Using data from a sample of 1,099 workers, this paper investigates the determinants of employment and wages for workers in the United Arab Emirates. The paper further examines the wage distribution and the decomposition of the wage gap between the public and the private sectors. Results of the study are consistent with the dual labour market theory and indicate that the labour market in the United Arab Emirates is segmented based on sectors (public versus private) and types of workers (nationals versus non‐nationals). The study concludes with a discussion of the implication of these findings for the effectiveness of labour and economic policy.     

Unemployment Benefits and Employment Policies in the Presence of a Strong Trade Union: A Comparison

Abstract. The paper analyses, within a game theoretic approach, the consequences on private employment and real wages of a government policy of raising unemployment benefits following a fall in employment. The effects of such a policy are then compared with those arising from a more conventional demand policy. Under the policy regime described the reaction of the unions will cause, when the economy is hit by a negative shock on employment, a tendency for the real wage to rise and for private employment to decrease further. As far as the comparison of such policy with a policy of direct employment by the government is concerned we have reached the following conclusions. A policy based on unemployment benefit will give rise to a smaller increase in the real wage than a policy based on public employment if the change in the marginal utility of being employed due to change in the unemployment benefit is smaller than the utility that the union will obtain from an extra employed person. Moreover it appears that a policy based on unemployment benefits has a smaller negative effect on private employment, than a policy based on direct employment. if such a policy is adopted just after an employment benefits represent also a subsidy to the firms. We have shown that the effects on the real wage of the Policy rule considered are in this case stronger. The effects on employment depend on the relative strength of the union reaction and of the policy's supply side effects.     

Unemployment May Be Lower if Unions Bargain over Wages and Employment

This paper addresses the question under which circumstances unemployment can be lower if unions bargain over wages and employment in a general equilibrium framework. Thereby, it turns out that the unemployment rate may negatively depend on the wage rate, if the unemployment compensation scheme contains a constant real term in addition to the replacement ratio component. This is, compared with a pure replacement ratio scheme, the more plausible formalization of the real world’s compensation systems, at least for European countries. Besides the theoretical analysis, the paper also derives political implications by identifying the relevant parameters for the decision on whether weakening unions will be a good strategy for an economy to overcome its unemployment problem.     

Longitudinal Analysis of Employment and Unemployment Based on Matched Rotation Samples

ABSTRACT: The purpose of this paper is to provide methodology to fit longitudinal data on employment and unemployment generated by the rotation sampling schemes of national labour force surveys. The proposed methodology, referred to as infinite-lag Markov models, is a generalisation of autoregressive Markov models developed for application in stochastic reservoir theory (Pegram 1980, Raftery 1985). Infinite-lag Markov chains have infinite memory and, therefore, can usefully serve to model labour supply behaviour taking into account, in principle, the complete past work experience of individuals, and not just the most recent past or the most recent spell. After a brief review of the rotation sampling schemes of 20 national labour force surveys, the different types of longitudinal sequences that can be obtained from the rotation schemes are examined. A review of various models proposed in the literature for analysing longitudinal data on employment and unemployment, expressed under simplified assumptions and in discrete forms, set the stage for the formulation of the proposed infinite-lag Markov model. The method is illustrated using matched longitudinal data derived from the US Current Population Survey.     

Labour Costs and Employment in the Service Economy

Abstract. In this paper we analyse the direct relationship between the cost of labour and employment in diverse service industries. In contrast to most existing studies, we assume that the tertiary sector is highly differentiated h terms of reactions to both supply and demand factors. The study suggests that we must reasses the relevance of demand factors, but it also confirms that the real cost of labour is a crucial determinant of certain kinds of service employment. Country comparisons have made US sensitive to the fact that the relationship between employment and the cost of labour is far from being globally similar. Each country exhibits behaviour in line with the peculiarities of its labour market.     

Employment Protection and Temporary Work Agencies

Employers who use temporary agency staff in contrast to regular staff are not affected by employment protection regulations when terminating a job. Therefore, services provided by temporary work agencies may be seen as a substitute for regular employment. In this paper, we analyse the effects of employment protection on the size of the temporary work agency sector in a model of equilibrium unemployment. We find that higher firing costs may even reduce temporary work agency employment if agencies themselves are subject to employment protection, a consideration that distinguishes our results from those for fixed‐term employment arrangements.     

有摩擦金融市场的弱无套利性

本文针对存在买进卖出差价和交易费两种摩擦形式的金融市场,利用凸分析、非线性规划等优化工具,给出了弱无套利的一个本质刻画,以及有关状态价格和弱无套利的一系列结果,推广了以往文献中的许多已知结果。     

International and National R&D Networks in Unionized Oligopoly

We study the endogenous formation of R&D networks between two domestic and one foreign firms in a unionized oligopoly. We find that the equilibrium networks are sensitive to the extent of knowledge spillovers between networked firms. If spillovers are sufficiently low, the complete network will arise in equilibrium; however, if spillovers are sufficiently high, the foreign partial network that includes a domestic and a foreign firm will arise. Moreover, for intermediate spillovers, no equilibrium network emerges. These results have implications for aggregate outcomes: equilibrium networks are not necessarily optimal in terms of aggregate effective R&D and aggregate firm profits.     

Unemployment and Search for Work: Exploratory Analyses of Labour Market Attachment and its Dynamics

This paper deals with measuring unemployment and labour market attachment in Italy, on the basis of Labour Force Survey data. Based on the answers to a set of questions on search for work, a cluster analysis is performed, which yields four groups, clearly characterized as regards their labour market conditions and attachment. Analyses are then carried out on the gross flows between these groups, estimated over a quarterly interval. Results of the dynamic analysis confirm the relevance of the classification established through exploratory techniques. The various groups exhibit a different dynamic behaviour, thus documenting that the exploratory classification has predictive power.     

市场经济客观规律初探

我国广大企业在经济体制转型过程中, 面临了前所未有的挑战与机遇. 但在客观环境相同或类似的情况下, 企业经营的结果却出现明显差距. 从深层次来分析, 主宰企业兴衰成败命运的, 是不以人们意志为转移的市场经济客观规律. 自觉不自觉地遵照了这些客观规律, 企业就会发展壮大, 走向成功; 反之则会衰落. 研究掌握这些客观规律, 将有助于企业在经营管理中减少盲目性, 增强自觉性, 取得更多一点的经营主动权. 本文是企业在市场经济下应遵循的一些客观规律的初步探索.     

Unemployment and Search for Work: Exploratory Analyses of Labour Market Attachment using CPS-Type Data

Abstract. This paper deals with measuring unemployment and labour market attachment in Italy, on the basis of CPS-type survey data. It is shown that the size and rate of unemployment are highly sensitive to modest variations in the definition of unemployment. This motivates a different approach. Based on the answers to a set of questions on search for work, a cluster analysis is performed, which yields four well established groups. Comparing them with the official labour force classifications, two “grey areas” appear at the borders between employment, unemployment and inactivity, which are of some interest in interpreting labour market attachment.     

Vacancy Referrals,Job Search,and the Duration of Unemployment: A Randomized Experiment

One goal of the Public Employment Service is to facilitate matching between unemployed job‐seekers and job vacancies; another goal is to monitor job search so as to bring search efforts among the unemployed in line with search requirements. The referral of job‐seekers to vacancies is one instrument used for these purposes. We report results from a randomized Swedish experiment where the outcome of referrals is examined. To what extent do unemployed individuals actually apply for the jobs they are referred to? Does information to job‐seekers about increased monitoring affect the probability of applying and the probability of leaving unemployment? The experiment indicates that a relatively large fraction (one‐third) of the referrals do not result in job applications. Information about intensified monitoring causes an increase in the probability of job application, especially among young people. However, we find no significant impact on the duration of unemployment.     

Unemployment and Retirement in a Model with Age‐specific Heterogeneity

This paper presents a model where young and old workers compete for one type of jobs in the presence of retirement opportunity. Within this framework, we show that increased retirement opportunities (such as a decrease of the retirement age) has most of the time a depressing impact on the unemployment rate. Indeed the number of vacancies posted by firms is influenced by the probability that an old worker is going into retirement. We show that the degree to which younger workers are influenced by retirement of older workers depends on the relative productivity of young and older workers. It is only when older workers are much more productive than young workers that retirement may benefit to unemployment.