Urban search models under high-relocation costs. Theory and application to spatial mismatch

We develop a search-matching model in which mobility costs are so high that it is too costly for workers to relocate when a change in their employment status occurs. We show that, in equilibrium, wages increase with distance to jobs and commuting costs because firms need to compensate the transportation cost difference between the employed and unemployed workers at each location in the city. We also show that the equilibrium land rent is negatively affected by the unemployment benefit because an increase in the latter induce firms to create less jobs, which, in turn, reduces the competition in the land market. We then use this model to provide a mechanism for the observed spatial mismatch between where black workers live and where jobs are. We finally show that a transportation policy consisting in subsidizing the commuting costs of black workers can increase job creation and reduce unemployment if the level of the subsidy is set at a sufficiently high level.     

Does City Structure Affect Job Search and Welfare?

We develop a model in which workers' search efficiency is negatively affected by access to jobs. Workers' location in a city is endogenous and reflects a trade-off between commuting costs and the surplus associated with search. Different configurations emerge in equilibrium; notably, the unemployed workers may reside far away (segregated city) or close to jobs (integrated city). We prove that there exists a unique and stable market equilibrium in which both land and labor markets are solved for simultaneously. We find that, despite inefficient search in the segregated city equilibrium, the welfare difference between the two equilibria is not so large due to differences in commuting costs. We also show how a social planner can manipulate wages by subsidizing/taxing the transport costs and can accordingly restore the efficiency.     

Endogenous job destruction and job matching in cities

We propose a spatial search-matching model where both job creation and job destruction are endogenous. Workers are ex ante identical but not ex post since their jobs can be hit by a technological shock which decreases their productivity. They reside in a city, and commuting to the job center involves both pecuniary and time costs. As a result, workers with high wages are willing to live closer to jobs to save on time commuting costs. We show that, in equilibrium, there is a one-to-one correspondence between the productivity space and the urban location space. Workers with high productivities and wages reside close to jobs, have low per distance commuting costs and pay high land rents. We also show that higher per distance commuting costs and higher unemployment benefits lead to more job destruction.     

Employed and Unemployed Job Seekers and the Business Cycle

The job search literature suggests that on‐the‐job search reduces the probability of un employed people finding jobs. However, there is little evidence that employed and unemployed job seekers are similar or apply for the same jobs. We compare employed and unemployed job seekers in their individual characteristics, preferences over working hours, job‐search strategies and employment histories, and identify how differences vary over the business cycle. We find systematic differences which persist over the business cycle. Our results are consistent with a segmented labour market in which employed and unemployed job seekers are unlikely to directly compete with each other for jobs.     

Subsidizing low-skilled jobs in a dual labor market

We introduce a matching model that allows for classical and frictional unemployment. The labor market is dual featuring low-skilled and high-skilled workers and simple and complex jobs. Simple jobs pay a minimum wage, while wages in the complex jobs are determined by Nash bargaining. Opportunities for low-skilled workers are limited to simple jobs; while high-skilled unemployed can apply for both types of jobs, and thereby can accept to be downgraded. We analyze the outcomes of simple job subsidy policies assuming that government budget is balanced through taxes on occupied workers. We first give conditions for the existence and uniqueness of a steady-state equilibrium and we then analyze the effects of different fiscal instruments. We show that in this set-up, increasing simple job subsidies does not necessarily reduce low-skilled unemployment or unemployment spells. By introducing heterogeneous skills and possible downgrading of the high-skilled workers, we show that the effectiveness of such policies in reducing the classical unemployment is decreasing. In fact, any additional classical unemployed re-entering the job market is accompanied by an increasing number of high-skilled workers downgrading to low-skilled jobs. We calibrate the model on French labor market data. It is found that for five low-skilled workers leaving classical unemployment, two high-skilled workers are downgraded.     

The Hiring Function Reconsidered: on Closing the Circle

This paper investigates the matching of job searchers with vacant jobs: a key component of the dynamics of worker reallocation in the labour market. The job searchers may be unemployed, employed or not in the labour force and we estimate matching or hiring functions including all three groups. We show that previous studies, which ignore both employed job seekers and unemployed job seekers who are considered to be out of the labour force, produce biased estimates of the coefficients of interest. By considering only unemployment outflows into jobs and ignoring interdependencies with other flows, these studies overlook an important aspect of job matching. Our estimates on Australian data support a more general approach and produce models that dominate those proposed previously. We find that concentrating on the aggregate matching function alone does not reveal the full extent of the interaction across job searchers. Indeed, we find that job searchers from the three groups do not receive a fair share of hires: there appears to be segmentation of hiring opportunities which may be explained by a form of ranking of applicants. Together these results demonstrate that the disaggregate worker flows and their interdependence are key features on the labour market and should be included in studies of the hiring process.     

De-industrialization and the ‘disappeared workers’

Hong Kong has undergone a remarkable process of a complete cycle of industrialization and de-industrialization within the lifetime of one generation of workers. This paper explores the impact of this swift economic progress and examines the adjustment problems and difficulties experienced by workers displaced from their jobs in a rapidly de-industrializing society. It addresses the issue of what has become of these displaced workers. It was found that, while a proportion of the displaced workers were able to find alternative employment in the expanding services industries, many became discouraged workers who joined the ranks of the hidden unemployed, partly as a result of discrimination which compounded their problem and further hindered their search for work and employment. The data show that many of these people eventually (in)voluntarily withdrew completely from the labour market. Suggestions have been made regarding the role which can be played by the government in particular to ease the transition of displaced workers into other employment positions.     

On-the-job search and cyclical unemployment: Crowding out vs. vacancy effects

Incorporating on-the-job search (OTJS) into a real business cycle model has been shown to increase the cyclical volatility of unemployment. Using a particularly simple model of OTJS, we show that the increased search of employed workers during expansions induces firms to open more vacancies, but also crowds out unemployed workers in the job search, resulting in an ambiguous overall effect on unemployment volatility. We show analytically and numerically that the difference between the employer׳s share of the match surplus with an employed versus an unemployed job seeker determines the degree to which OTJS increases unemployment volatility. We use this result to re-consider some related papers of OTJS and explain the amplification of volatility they obtain. Finally, we show that a plausible calibration of the OTJS model allows us to reproduce most significant features of the US labor data.     

Overlapping labour markets

Overlapping labour markets arise when some types of workers do not meet employers with some types of jobs. For example, skilled workers could seek high-skill or low-skill jobs, but low skill workers could be limited to low-skill jobs. The paper derives conditions for equilibrium and efficiency, distinguishes reducible from irreducible overlapping labour markets, and describes distributional impacts of proportional demand shifts and technological change. Many labour models incorporate the structure of overlapping labour markets, so that the results have widespread applicability.     

Productivity insurance: The role of unemployment benefits in a multi-sector model

We construct a multi-sector search and matching model where the unemployed receives idiosyncratic productivity shocks that make working in certain sectors more productive than in the others. Agents must decide which sector to search in and face moving costs when leaving their current sector for another. In this environment, unemployment is associated with an additional risk: low future wages if mobility costs preclude search in the appropriate sector. This introduces a new role for unemployment benefits – productivity insurance while unemployed. For plausible parameterizations unemployment benefits increase per-worker productivity. In addition, the welfare-maximizing benefit level decreases as moving costs increase.     

The cyclical upgrading of labor and on-the-job search

This paper examines patterns of worker reallocation in the search and matching model of the labor market. We show that on-the-job search is crucial for explaining the observed cyclical upgrading of workers to better employment opportunities in booms. This is due to the rising availability of employed searchers which facilitates recruitment for newly created high-wage jobs. The standard model fails to exhibit such behavior. At the same time, the model is consistent with salient features of labor market dynamics, such as the volatility of vacancies and unemployment, and a highly procyclical rate of job-to-job transitions. This suggests an important channel for the reallocation of workers across jobs as well as the propagation of aggregate shocks.     

Labour market signalling and job turnover revisited

Turnover by both low and high productivity workers occurs in all jobs. However, the reasons for turnover by workers of different abilities differ. When the probability that better workers transmit accurate signals to the labour market increases, we show that incumbent employers are more likely to adopt a separating wage offer strategy. This reduces the likelihood of turnover by more productive workers. We also show that turnover depends on a firm's willingness to match outside wage offers. Hence, the personnel and wage policies adopted by employers are important for understanding the turnover of workers of all productivity types.     

Turning Unemployment into Self‐Employment: Effectiveness of Two Start‐Up Programmes*

Turning unemployment into self‐employment has become a major focus of German active labour market policy (ALMP) in recent years. If effective, this would not only reduce Germany's persistently high unemployment rate, but also increase its notoriously low self‐employment rate. Empirical evidence on the effectiveness of such programmes is scarce. We evaluate the effectiveness of two start‐up programmes for the unemployed, where we include the probability of being employed, the probability of being unemployed and personal income as outcome variables. Our results show that at the end of the observation period, both programmes are effective. The considerable positive effects present a stark contrast to findings from evaluations of other German ALMP programmes in recent years. Hence, ALMP programmes aimed at moving the unemployed into self‐employment may prove to be among the most effective, both in Germany and elsewhere.     

Inferring Employer Search Behaviour from Wage Subsidy Participation

We introduce a novel way to infer employer search behaviour, through deadweight loss incidence in wage subsidy schemes. Using a data set on British firms participating in such schemes we can distinguish between intensive and extensive employer search. These data also allow us to separate the negative economies of scale effect from the positive monitoring effect of firm size on intensive search costs. Our findings further indicate that ‘hours worked’ and ‘supervisory tasks’ increase extensive search costs. Since intensive and extensive search behaviour affect the job find probability of the (long-term) unemployed, our conclusions have significant labour market policy relevance.     

Paying to queue: a theory of locational differences in nonunion wages

Traditional theories of the effect unions have on nonunion wages are difficult to reconcile with firm and worker mobility. We show how differences in nonunion wages can persist in a two-city search model. Nonunion wage differences across cities are driven by transition rates into the union sector. Should union queues form in the nonunion sector, union power decreases nonunion wages as workers are willing to take lower wages to line up for union jobs. However, if queues are formed in the unemployed sector, union power increases nonunion wages as nonunion firms pay premiums to induce workers to leave the queue.     

Workforce location and equilibrium unemployment in a duocentric economy with matching frictions

This article examines unemployment disparities and efficiency in a duocentric city where workers are non-uniformly distributed between the two job centers. We introduce commuting costs and search-matching frictions to deal with the spatial mismatch between workers and firms. In a decentralized economy job-seekers do not internalize a composition externality they impose on all the unemployed. With symmetric job centers, a change in the distribution of the workforce can lead to asymmetric equilibrium outcomes. We calibrate the model for Los Angeles and Chicago Metropolitan Statistical Areas. Simulations suggest that changes in the workforce distribution have non-negligible effects on unemployment rates, wages, and net output, but cannot be the unique explanation of a substantial mismatch problem.     

Spatial versus social mismatch

The aim of this paper is to provide a new mechanism based on social interactions, explaining why distance to jobs can have a negative impact on workers’ labor-market outcomes, especially ethnic minorities. Building on Granovetter’s idea that weak ties are superior to strong ties for providing support in getting a job, we develop a model in which workers who live far away from jobs choose to have less connections to weak ties. Because of the lack of good public transportation in the US, it is costly (both in terms of time and money) to commute to business centers to meet other types of people who can provide other source of information about jobs. If distant minority workers mainly rely on their strong ties, who are more likely to be unemployed, there is then little chance for them of escaping unemployment. It is therefore the separation in both the social and physical space that prevents ethnic minorities from finding a job.     

Informal hierarchies among workers in low‐skill food manufacturing jobs

This article examines the creation of informal workplace hierarchies in the context of recent changes in the UK labour market. Previous studies have identified that deskilling of jobs has removed formal hierarchies among many production workers, and that informal hierarchies based upon factors such as contractual status have formed in their place. The aim of this article is to examine how changes in the labour force mean that new informal hierarchies have developed among migrant and immigrant workers who take these jobs through an agency. Research consisted of 50 semi‐structured interviews, coupled with lengthy observation of both work and social settings, at three food manufacturers. The article finds that language and cultural issues create a complex informal hierarchy not only between directly employed and agency workers, but also among and within different groups of migrant and immigrant agency workers.     

Temporary layoffs and split population models

This paper develops and estimates a split population model for the duration of temporary layoffs in the German labour market; the population being split according to whether a layoff is temporary or permanent. A flexible piecewise constant hazard is employed and the recall propensity is used to condition the duration of a temporary layoff. The distinction between factors that influence the recall propensity and factors that influence the duration of a temporary layoff is shown to be of empirical significance. The results of the paper are used to evaluate implicit contract and search theories of temporary layoffs. The paper suggests that implicit contracts can explain the behaviour of unemployed workers with high worker–firm attachment whilst search can explain the behaviour of workers with low worker–firm attachment. Copyright © 2004 John Wiley & Sons, Ltd.     

Does subsidised temporary employment get the unemployed back to work? Aneconometric analysis of two different schemes

Subsidised employment is an important tool of active labour market policies to improve the reemployment chances of the unemployed. Using unusually informative individual data from administrative records, we investigate the effects of two different schemes of subsidised temporary employment implemented in Switzerland: non-profit employment programmes (EP) and a subsidy for temporary jobs (TEMP) in private and public firms. Econometric matching methods show that TEMP is more successful than EP in getting the unemployed back to work. Compared to not participating in any programme, EP and TEMP are ineffective for unemployed who find jobs easily anyway or have a short unemployment spell. For potential and actual long-term unemployed, both programmes may have positive effects, but the effect of TEMP is larger.