"We examine the effect of dismissal regulation on productivity in the OECD, using annual cross-country aggregate data on the stringency of employment protection legislation and industry-level data on productivity from 1982 to 2003. Our empirical results suggest that mandatory dismissal regulations have a depressing impact on productivity growth in industries where layoff restrictions are more likely to be binding. By contrast, we find no evidence of a productivity effect of regulations concerning temporary contracts, which suggests that partial reforms, facilitating the use of fixed-term and atypical contracts, are unlikely to have an important impact on efficiency and technological change and cannot therefore be a substitute for comprehensive reforms whereby dismissal restrictions for open-ended contracts are also weakened." Copyright (c) CEPR, CES, MSH, 2009.

There is no or limited consensus on the quantitative impact of institutions on unemployment, which has led some to question the case for structural reforms. Recent studies suggest also that institutions interact with each other and cannot be analysed in isolation. In this paper, we estimate a standard reduced-form model to explore the institutional determinants of unemployment and assess its robustness using a large battery of robustness checks. We show that, although the impact of each individual policy varies across countries due to policy interactions, the simple linear model can be used to draw inferences for countries with an average mix of institutions. The model is then extended to encompass systemic interactions, in which individual policies interact with the overall institutional framework. We find relatively robust evidence of broad reform complementarities.