We develop a network model looking at the role of different types of peers in education. The empirical salience of the model is tested using a very detailed longitudinal dataset of adolescent friendship networks. We find that there are strong and persistent peer effects in education but peers...

This paper examines the relationship between fiscal policy and the current account, drawing on a larger country sample than in previous studies and using panel regressions, vector auto-regressions, and an analysis of large fiscal and external adjustments. On average, a strengthening in the...

The paper compares the cyclical behaviour of the Greek economy to that of the other EC economies, using quarterly and annual data since 1960 and the Real Business Cycle model as a theoretical framework. The evidence suggests that there are remarkable similarities in these features despite...

Expenditures devoted to research and development (R&D) are scarce and thus need to be used as efficiently as possible given the financial constraints countries are facing. This paper assesses the relative efficiency of R&D expenditures for 26 OECD member countries and 2 non-member countries. As...

In the second half of the 1990s Switzerland introduced an ambitious active labour market policy (ALMP) encompassing a variety of programmes. We evaluate the effects of these programmes on individual employment probability using unusually informative data originating from administrative records....

Since interventions by the public sector generally commit substantial societal resources, the evaluation of effects and costs of policy interventions is imperative. This Paper outlines why programme evaluation should follow well respected scientific standards and why it should be performed by...

We analyse the evolution of the business cycle in the accession countries, after a careful examination of the seasonal properties of the available series and the required modification of the cycle dating procedures. We then focus on the degree of cyclical concordance within the group of...

This Paper surveys the existing empirical research that uses search theory to analyse empirically labour supply questions in a structural framework, using data on individual labour market transitions and durations, wages, and individual characteristics. The starting points of the literature are...

This paper formulates a structural empirical model of heterogeneous firms whose workers exhibit fair-wage preferences. In the underlying theoretical framework, such preferences lead to a link between a firm's operating profits on the one hand and wages of workers employed by this firm on the...

The Swedish adult education program known as the Knowledge Lift (1997--2002) was unprecedented in its size and scope, aiming to raise the skill level of large numbers of low-skill workers. This paper evaluates the potential effects of this program on aggregate labour market outcomes. This is...