Firms exhibit heterogeneity in size, productivity, and internal structure, and this is true even within the same industry. It has been thought since the time of Adam Smith that a firm's internal structure affects its productivity through the channel of gains from specialization. Our paper...

We examine a situation where efforts on different tasks positively affect production but are not separately verifiable and where the manager (principal) and the worker (agent) have different ideas about how production should be carried out: agents prefer a less efficient way of production. We...

The model developed in this paper explains differences in the division of labour across firms as a result of computer technology adoption. We find that changes in the division of labour can result both from reduced production time and from improved communication possibilities. The first shifts...

We model the sorting of medical students across medical occupations and identify a mechanism that explains the possibility of differential productivity across occupations. The model combines moral hazard and matching of physicians and occupations with pre-matching investments. In equilibrium...

Relationships have changed dramatically in the last fifty years. Fewer couples are marrying, more are cohabiting. Reasons for this shift abound, but the shift may have consequences of its own. A number of models predict that those cohabiting will specialize less than those marrying. Panel data...

Learning about the impact of immigration on the labor market outcomes of natives is a topic of major concern for immigrant-receiving countries. There exists an extensive literature evaluating the impact of immigration on the employment and wages of natives in the U.S. Yet, despite the...

This paper first documents the extent of the specialization in time use in couple families, and the impact of children on this specialization. It then examines the links between the time allocations of partners in couple families, the impact of children on these links, and the effects these...

The aim of this study is to test the possible catalysing role of in-house R&D in fostering the complementarity of innovative inputs on a sample of 3045 manufacturing firms drawn from the third Italian Community Innovation Survey (1998-2000). The interactions between four different sources of...

This paper shows that specialized education reduces workers' mobility and hence their ability to cope with economic changes. We illustrate this point using labor force data from two countries having experienced important macroeconomic turbulence; a large economy with rigid labor markets, Poland,...

This paper introduces indicators about the division of labour to measure and interpret recent trends in the structure of employment in the Netherlands. Changes in the division of labour occur at three different levels: the level of the individual worker, the level of the industry and the spatial...