Le changement climatique amplifie les risques pesant sur les ressources hydriques et les capacités agricoles au sud de la Méditerranée. Cet article analyse la portée méthodologique du concept de « commerce d'eau virtuelle » en quantifiant le contenu en eau des importations céréalières...

We introduce and implement a reversible jump approach to Bayesian Model Averaging for the Probit model with uncertain regressors. This approach provides a direct estimate of the probability that a variable should be included in the model. Two applications are investigated. The �rst is the...

Los pueblos y ciudades crecen con rapidez en los países en desarrollo. Este proceso va acompañado a menudo de niveles elevados de hambre y pobreza, lo que conduce a muchos residentes urbanos a ocuparse en actividades agrícolas para ayudar a cubrir sus necesidades alimentarias. Los...

The importance of an 'agricultural surplus' for the structural transformation accompanying economic growth is often stressed in development literature. 'Agricultural surplus', defined as the physical marketed surplus of food and raw materials, has an evident role in the expansion of non-farm...

We show empirically using panel data at the plot and farm level and based on a model incorporating supervision costs, risk, credit-market imperfections and scale-economies associated with mechanization that small-scale farming is inefficient in India. Larger farms are more profitable per acre,...