Resultados de búsqueda - "Chang’an"

  1. The impact of technological change in rice production on food consumption and nutrition por Pinstrup-Andersen, Per, Jaramillo, Mauricio

    Publicado 1991
    “…Technological change, such as the replacement of traditional with modern crop varieties and introduction of irrigation, has been effective in increasing the yields and production of various crops— notably rice and wheat—as well as incomes of farmers in developing countries (Pinstrup-Andersen 1982; Pinstrup-Andersen and Hazell 1985; Lipton 1989). …”
    Enlace del recurso
    Capítulo de libro
  2. International initiatives in Agricultural R&D: The changing fortunes of the CGIAR por Alston, Julian M., Dehmer, Steven, Pardey, Philip G.

    Publicado 2006
    “…Many believe that agricultural productivity growth, driven by research-induced technical change, is essential to long-run economic development. …”
    Enlace del recurso
    Capítulo de libro
  3. The impact of changes in common property resource management on intrahousehold allocation por Maggs, Philip, Hoddinott, John F.

    Publicado 1997
    “…This paper demonstrates that if a change in the management of CPRs imposes costs on these individuals, or causes a decline in the prices or productivities associated with goods produced from the CPRs, the intrahousehold allocation of resources may alter in a manner detrimental to those individuals. …”
    Enlace del recurso
    Artículo preliminar
  4. Causes and consequences of changing land tenure institutions in Western Ghana por Otsuka, Keijiro, Aidoo, J. B., Tachibana, Towa, Quisumbing, Agnes R.

    Publicado 1998
    “…Thus, incentives to invest in land resources under such land tenure rules may be weaker due to unclear and uncertain individual rights....Changes in mode of land acquisition. Based on a survey of 60 villages in Western Ghana, where cocoa is the dominant crop, this study identifies statistically the determinants and the consequences of changing customary land tenure institutions....Under increasing population pressure, shifting cultivation becomes unsustainable since gradual decreases in the fallow period reduce soil fertility. …”
    Enlace del recurso
    Brief

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