English, Article, Journal or magazine article edition: A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil You, Liangzhi

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Physical Description
  • preprint
Language
  • English

Edition details

Title
  • A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil
Author
  • You, Liangzhi
Physical Description
  • preprint
Notes
  • This paper looks at differences in spatial and temporal variation of rice yields in China and Brazil. We find that rice yields in China have converged over time and that rice production has become more and more homogeneous. In contrast, rice yields in Brazil have diverged over time, primarily due to variations in upland rice yields. Three hypotheses are put forward to explain the different behaviour of rice yields in Brazil and China: (i) differences in production systems (i.e., irrigated in China versus upland in Brazil); (ii) changes in rainfall patterns and (iii) bias in agricultural R&​D favouring irrigated rice. Our empirical analysis provides support to the first two hypotheses by establishing that upland rice is subjected to much greater variation in yields than irrigated rice and that changing rainfall patterns affect mostly upland rice. We also provide evidence of the bias towards irrigated systems by looking at the patterns of varietal release.
  • rice productivity, spatial convergence, technology spillover, China, Brazil
  • RePEc:unu:wpaper:rp2008-30
  • "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 shows much more variation in yields compared to irrigated rice; and 2) changing rainfall patterns have primarily affected upland rice. We also provide evidence of the bias towards irrigated systems by looking at the patterns of varietal release." from Author's Abstract
  • Rice productivity, Spatial convergence, Technology spillover, Agricultural research, Research and development,
  • RePEc:fpr:ifprid:758
Language
  • English
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