Using a two–country DGSE combining nominal rigidities and financial frictions, we show that the persistence of output and inflation asymmetries observed since 1999 in an increasingly integrated EMU is not necessarily puzzling. Only the integration of intermediate goods markets unambiguously leads to a reduction of asymmetries while the integration of finals goods markets and the integration of financial markets increase the dispersion of inflation rates and business cycles. The result builds on the intensive use of financial markets, i.e. the current account, to adjust externally and smooth the consequences of asymmetric shocks. This mechanism implies a disconnection of country-level outputs and/or inflation rates to ensure that agents return to their initial asset position in the long run.

OECD countries are concerned with strong male-female disparities in the labour market, in particular: with a wage gap in favour of men; with a strong gender occupational segmentation. Although empirical studies suggest malefemale differences in work attitudes have a part in these facts, this aspect is often overlooked in economic theory. In this paper, we propose an employment relationship model to capture the role of work attitudes. We consider agents exhibiting self-esteem motives which may represent a source of non pecuniary work motivation. Depending on the optimal contract, an agent develops such a motivation or not. We rely on this model to offer an explanation of observed disparities. The model accounts for a gendered vertically segmented labour market with an overrepresentation of women in low effort requirement poorly-paid jobs.

Cet article s'intéresse aux effets liés à l'introduction d'un système de modulation des cotisations patronales à l'assurance chômage (ou experience rating) sur le niveau et la structure du chômage par qualification. Nous construisons pour cela un modèle d'appariement dans lequel l'évolution de la demande de travail, les décisions de création et destruction d'emplois, ainsi que l'évolution des taxes destinées à financer l'assurance chômage sont endogènes. Dans ce cadre, la protection de l'emploi a des effets qui peuvent être différenciés selon le niveau de qualification considéré. L'introduction d'un système de modulation des cotisations employeur à l'assurance chômage pourrait améliorer le fonctionnement du marché du travail; l'importance des éventuels effets indésirables liés à ce système dépend de la capacité à substituer la taxe d'expérience rating aux dispositifs de protection de l'emploi déjà en place. La hausse des incitations à se qualifier réduit en partie l'importance de ce problème.

We model environmental interaction among countries as a policy game where governments in each country use quotas or taxes as strategy variables. The environmental policy has a triple role to play: targeting domestic emissions, providing strategic advantages for domestic firms and targeting imported pollution. Using a multi-sector economic model, we show that, besides the well-known inefficiencies arising at the international level, the environmental policy may lead to purely domestic inefficiencies.