type="main" xml:lang="es" <title type="main">Resumen</title> <p>Este artículo examina la eficacia de la reforma de 1998 de la gestión del riego en la llanura de Guanzhong (Shaanxi, China), a escala de finca agrícola y de canal de riego. Se aplica un análisis de frontera estocástica para calcular la eficiencia del uso...</p>

Several major changes in educational policies have occurred in Spain over the last four decades. One of these is the re-organization of the educational system beginning in 1970. A policy to encourage the regional spread of universities was pursued over the seventies and eighties. There has also...

This article addresses the problem faced by an asymmetrically informed supra-national governmental authority (SNGA) with limited funds that wishes to design an international environmental agreement (IEA) for less developed countries (LDCs). The SNGA can only deal with polluting firms in the LDCs...

We analyze the impact of preference matching and income on the distribution of the population in an aggregate economy of an urban and an adjacent rural region. It costs more (less) to live in the urban (rural) region. Individuals choose to live either in the urban or in the rural region. They...