The LCSSD Occasional Paper Series is a publication of the Sustainable Development Department (LCSSD) in the World Bank’s Latin America and the Caribbean Region. The papers in this series are the result of economic and technical research conducted by members of the LCSSD community. The series addresses issues that are relevant to the region’s environmental and social sustainability; water, urban, energy and transport sector development; agriculture, forestry and rural development; as well as cross-cutting topics related to sustainable development such as climate change; logistics; crime and violence; and spatial economics. While all papers in this series are peer reviewed and cleared by the LCSSD Economics Unit on behalf of the Director of LCSSD, the findings, interpretations, and conclusions expressed in this paper, as in all publications of the LCSSD Occasional Paper Series, are entirely those of the authors and should not be attributed in any manner to the World Bank, to its affiliated organizations or to members of its Board of Executive Directors or the countries they represent. The World Bank does not garantee the accuracy of the data included in this paper and accepts no responsibility for any consequences of their use.