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International R&D Spillovers and Productivity Growth in the Agricultural Sector A Panel Cointegration Approach AgEcon
Gutierrez, Luciano; Guiterrez, M..
This paper analyses, within the new growth theory framework and using panel cointegration techniques, the effect of agricultural international technological spillovers on total factor productivity growth for a sample of 47 countries during the period 1970-1992. The analysis shows that total factor productivity is strongly influenced by domestic as well as foreign public R&D spending in agricultural sector and geographical factors matters. Countries located in temperate zones benefit more than countries located in tropical zones from technological spillovers. Finally, the analysis shows that the rate of return to agricultural R&D spending is higher in tropical countries and this could justify new support and an even greater investment of funds for...
Tipo: Conference Paper or Presentation Palavras-chave: Technology spillover; Agricultural productivity; Panel cointegration; Research and Development/Tech Change/Emerging Technologies; C14; O30; Q16.
Ano: 2002 URL: http://purl.umn.edu/24967
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A Tale of Two Countries: Spatial and Temporal Patterns of Rice Productivity in China and Brazil AgEcon
You, Liangzhi.
This paper examines differences in the spatial and temporal variations of rice yields in China and Brazil. Our analysis indicates that, in China, rice yields have converged over time and rice production has become increasingly homogeneous. In contrast, rice yields in Brazil have diverged over time, primarily due to variations in upland rice yields. Three hypothetical explanations may account for the different behaviors of rice yields in Brazil and China, namely: 1) differences in production systems (i.e. irrigated in China vs. upland in Brazil); 2) changes in rainfall patterns; and 3) bias in agricultural research and development (R&D) towards irrigated rice. Our empirical analysis supports the first two hypotheses by establishing that: 1) upland rice...
Tipo: Working or Discussion Paper Palavras-chave: Rice productivity; Spatial convergence; Technology spillover; China; Brazil; Crop Production/Industries; Productivity Analysis.
Ano: 2008 URL: http://purl.umn.edu/42333
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