The consequences of aggregation, temporal or spatial, for the estimation of demand models are theoretically well-known, but have not been documented empirically with appropriate data before. In this paper we conduct a simple, but instructive, exercise to fill in this gap, using a large quarterly...

This paper estimates a structural model of the employment decision of the firm. Our establishment level data displays an extreme degree of rigidity in that employment levels are largely constant throughout our sample. This can be due to the fact that establishments face large shocks but also...

Using a longitudinal matched employer-employee data set for Portugal over the 1986-2005 period, this study analyzes the heterogeneity in wages responses to aggregate labor market conditions for newly hired workers and existing workers. Accounting for both worker and firm heterogeneity, the data...

Temporary forms of employment account for a variable but never trivial share of total employment in both the U.S. and in Europe. In this article we look at how one specific form of temporary employment - employment with fixed-term contracts - fits into employers' hiring policies. We find that...

Many pay-as-you-go pension systems have increased or plan to increase their legal retirement age (LRA) to address the financial consequences of ageing. Although the success of these policies is ultimately determined at the labour market, little is known about the effects of higher LRAs at the...

We use matched employer-employee data and firm balance sheet data to investigate the importance of firm productivity and firm labor market power in explaining firm heterogeneity in wage formation. We use a linear regression model with one interacted high dimensional fixed effect to estimate...

In Portugal, as in many other countries in continental Europe, the collective wage agreements between trade unions and employer associations that define wage floors for specific job titles are systematically extended to the whole industry. This means that many firms are obliged to increase the...