We use a comprehensive dataset of French manufacturing firms to study their internal organization. We first divide the employees of each firm into `layers' using occupational categories. Layers are hierarchical in that the typical worker in a higher layer earns more, and the typical firm...

We describe and analyse the changes in the occupational structure of French manufacturing firms between 1984 and 1995. Firms employ a much greater proportions of engineers and researchers working on the design and marketing of new products and a much lower proportion of high-skilled experts...

This paper sheds light on how changes in the organization of work can help to understand increasing wage inequality. We present a theoretical model in which workers with a wider span of competence (higher level of multitasking) earn a wage premium. Since abilities and opportunities to expand the...

We study the evolution of sectoral employment and labour cost in 11 European countries over the last two decades. Our statistical approach consists of decompositions for country, industry and temporal effects. Virtual economies are constructed by filtering country effects. We find that sectoral...

We estimate the impact of skilled and unskilled labour shortages on productivity and wages in the United Kingdom. Skill shortages are higher on average and more variable over the business cycle in the United Kingdom than in comparable economies. Unskilled shortages are comparatively rare, so...

We use a rich personnel data set from a Russian firm for the years 1997 to 2002 to analyze how the financial crisis in 1998 and the resulting change in external labour market conditions affect the wages and the welfare of workers inside a firm. We provide evidence that large shocks to external...

This paper evaluates two theories of unemployment: the natural rate theory (whereby unemployment is depicted as fluctuating around a reasonably stable natural rate) and the chain reaction theory (which views movements in unemployment as the outcome of the interplay between labour market shocks...

Since changes in trade openness are typically confounded with other factors, it has been difficult to identify the labour 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...