Documents Janiak, Alexandre 3 results

"Employment protection (EPL) has a well known negative impact on labor flows as well as an ambiguous but often negative effect on employment. In contrast, its impact on capital accumulation and capital-labor ratio is less well understood. The available empirical evidence suggests a non-monotonic relation between capital-labor ratios and EPL: positive at very low levels of EPL, and then negative. We explore the theoretical effects of EPL on physical capital in a model of a firm facing labor frictions. Under standard assumptions, theory always implies a motononic negative link between capital-labor ratios and EPL. For a positive link to arise, a very specific pattern of complementarity between capital and workers protected by EPL (senior workers, as opposed to unprotected new entrants, or junior workers) has to be assumed. Further, no standard production technology is able to reproduce the inverted U-shape pattern of the data. Instead, endogenous specific skills investment leads to an inverted U-shape pattern: EPL protects and therefore induces investments in specific skills. We develop such a model and calibrate the returns to seniority by using estimates from the empirical literature. Under complementarity between capital and specific human capital, physical capital and senior workers having accumulated specific human capital are de facto complement production factors and EPL may increase capital demand at the firm level. The paper concludes that labor market institutions may sometimes favor physical and human capital investments in second-best environments."

"I build a large-firm model of the labor market with matching frictions and firm turnover. Firms hire both labor and capital. The model allows me to assess the impact of two regulatory frictions on unemployment: i) the administrative costs of establishing a new firm and ii) the share of capital entrepreneurs recover when exiting. These regulations explain half the unemployment gap between Continental Europe and the United States in the calibrated model. More precisely, exit regulation is responsible for the entire explained gap, with entry regulation playing no role. The degree of returns to scale and the presence of fixed capital in the model are important assumptions behind these results."

"European labor markets are characterized by the low geographical mobility of workers. The absence of mobility is a factor behind high unemployment when jobless people prefer to remain in their home region rather than to go prospecting in more dynamic areas. In this paper, we attempt to understand the determinants of mobility by introducing the concept of local social capital. Using data from a European household panel (ECHP), we provide various measures of social capital, which appears to be a strong factor of immobility. It is also a fairly large factor of unemployment when social capital is clearly local, while other types of social capital are found to have a positive effect on employability. We also find evidence of the reciprocal causality, that is, individuals born in another region have accumulated less local social capital. Finally, observing that individuals in the South of Europe appear to accumulate more local social capital, while in Northern Europe they tend to invest in more general types of social capital, we argue that part of the European unemployment puzzle can be better understood thanks to the concept of local social capital. "