Although the diversification of national food supplies (DFS) is a necessary (but not sufficient) condition for the … diversification of diets and for reductions in undernutrition in poor countries, little previous research has analyzed how DFS varies …-country analysis. We first review economic theory and evidence on the diversification of production and diets in developing countries …

the product level. The authors find evidence of diversification followed, in the very last years of the sample period … simple model of adverse selection and quality screening by OECD buyers predicting that diversification happens by "bouts …

concentration of those imports across origin countries at the product level. The authors find evidence of diversification followed …

domestic shares under full diversification. When stock-market data are directly used, the predicted coefficient of home bias …

The existing literature on development and economic diversification finds an inverted-U function between these two … to this literature by investigating the stages of diversification over the course of development during the past 57 years … the extant literature. In addition, the paper studies the stages of diversification across three dimensions, namely …

diversification in the context of high trading costs, and the benefits of specialization in a Ricardian sense …

simple model of adverse selection and quality screening which captures this feature. The model predicts that diversification … happens by “bouts”, or temporary episodes, during which OECD buyers search for high-quality suppliers. Each diversification … increased diversification across time. We empirical explore these conjectures using OECD imports over time (1963-2006) and …