Documents Ragot, Lionel 4 results

"Some recent empirical contributions have pointed out a significant negative impact of pollution on labor supply. These impacts have been largely ignored in the theoretical literature, which, instead, focused on the case of pollution effects on consumption demand. In this paper, we study the short and long-run effects of pollution in a Ramsey model where pollution and labor supply are nonseparable arguments in households' preferences. We determine sufficient conditions for existence and uniqueness of a longterm equilibrium and we show how large (negative) effects of pollution on labor supply may promotes macroeconomic volatility (deterministic cycles near the steady state) through a flip bifurcation."

"On dénombre aujourd'hui dans le monde 4,3 millions d'étudiants étrangers (dont 53 % sont asiatiques), soit deux fois plus qu'il y a dix ans et cinq fois plus qu'en 1975. Six pays de l'Organisation de coopération et de développement économiques (OCDE), dont les États-Unis, le Royaume-Uni, l'Allemagne et la France, attirent à eux seuls plus de la moitié d'entre eux. L'enjeu est considérable tant pour les pays d'accueil que pour les pays d'origine. Les étudiants étrangers sont en effet considérés comme des vecteurs de diffusion de normes culturelles, économiques et politiques. L'enseignement qui leur est dispensé constitue également une forme d'aide au développement. Une fois diplômés et installés dans le pays d'accueil, les étudiants étrangers permettent aussi d'accroitre le niveau de qualification de la main-d'œuvre locale."

"Some recent empirical contributions have pointed out a significant negative impact of pollution on labor supply. These impacts have been largely ignored in the theoretical literature, which, instead, focused on the case of pollution effects on consumption demand. In this paper, we study the short and long-run effects of pollution in a Ramsey model where pollution and labor supply are nonseparable arguments in households' preferences. We determine sufficient conditions for existence and uniqueness of a longterm equilibrium and we show how large (negative) effects of pollution on labor supply may promotes macroeconomic volatility (deterministic cycles near the steady state) through a flip bifurcation."

"The covid-19 crisis and the ensuing closure of borders has profoundly affected the mobility of migrant seasonal workers. As some European agricultural sectors highly depend on these workers, governments in EU countries have urgently adopted different strategies to avoid disruptions due to their absence. Alternatives seeking to cope without this experienced foreign seasonal labour force, pose two difficulties: their effectiveness is not guaranteed and/or they are accompanied by a significant increase in production costs and therefore in prices. As this large-scale temporary shock may lead to longer-term structural changes in the agricultural sectors concerned, we draw on the UK's post-Brexit vote experience to discuss alternatives to foreign migrant seasonal workers. The covid-19 pandemic may well accelerate the adoption of robots for picking fruits and vegetables in the EU fields."