Informal contacts are extensively used by both firms and workers to find jobs and fill vacancies. Thecommon wisdom in the economic literature is that jobs created through this channel are of better qualityand pay higher wages than jobs created through formal methods. This paper explores the...

The labor search and matching model plays a growing role in macroeconomic analysis. This paper provides a critical, selective survey of the literature. Four fundamental questions are explored: how are unemployment, job vacancies, and employment determined as equilibrium phenomena? What...

Job polarisation has had strong effects on US workers' relative wages, according to research by Michael Boehm. His study examines whether the decline in manufacturing and clerical jobs has been responsible for the lagging wages of middle-skill workers in the United States. Comparing the...

How do firms respond to technological advances that facilitate the automation of tasks? Which tasks will they automate, and what types of worker will be replaced as a result? We present a model that distinguishes between a task's engineering complexity and its training requirements. When two...

Over the last two decades, earnings in the United States increased at the top and at the bottom of the wage distribution but not in the middle - the intensely debated middle class squeeze. At the same time there was a substantial decline of employment in middle-skill production and clerical...

Since changes in trade openness are typically confounded with other factors, it has been difficult to identify the labor market consequences of increased international trade. The advent of the United States Interstate Highway System provides a unique policy experiment, which I use to identify...

This paper studies the impact of NAFTA on informality and real wages in Mexico. Using a dynamic industry model with firm heterogeneity, it is predicted that import tariff elimination could reduce the incidence of informality by making more profitable to some firms to enter the formal sector,...

Labor market institutions, via their effect on the wage structure, affect the investmentdecisions of firms in labor markets with frictions. This observation helps explain rising wageinequality in the US, but a relatively stable wage structure in Europe in the 1980s. Thesedifferent trends are the...

The rise in joblessness among young people began long before the recession - Barbara Petrongolo and John Van Reenen consider potential explanations.

Barbara Petrongolo surveys the research evidence on the effectiveness of the 'sticks' and 'carrots' of active labour market policies.