A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil
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,...
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| Formato: | Artículo preliminar |
| Lenguaje: | Inglés |
| Publicado: |
United Nations University
2008
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| Acceso en línea: | https://hdl.handle.net/10568/162429 |
| _version_ | 1855520914003722240 |
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| author | You, Liangzhi |
| author_browse | You, Liangzhi |
| author_facet | You, Liangzhi |
| author_sort | You, Liangzhi |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Artículo preliminar |
| id | CGSpace162429 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | United Nations University |
| publisherStr | United Nations University |
| record_format | dspace |
| spelling | CGSpace1624292025-02-24T06:47:10Z A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil You, Liangzhi rice spatial convergence technology transfer agricultural research research and development 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. 2008 2024-11-21T10:02:59Z 2024-11-21T10:02:59Z Working Paper https://hdl.handle.net/10568/162429 en https://doi.org/10.1016/j.chieco.2010.10.004 https://hdl.handle.net/10568/160157 Limited Access United Nations University You, Liangzhi. 2008. A tale of two countries. WIDER Research Paper 2008/30. https://www.wider.unu.edu/publication/tale-two-countries-0 |
| spellingShingle | rice spatial convergence technology transfer agricultural research research and development You, Liangzhi A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil |
| title | A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil |
| title_full | A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil |
| title_fullStr | A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil |
| title_full_unstemmed | A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil |
| title_short | A tale of two countries: Spatial and temporal patterns of rice productivity in China and Brazil |
| title_sort | tale of two countries spatial and temporal patterns of rice productivity in china and brazil |
| topic | rice spatial convergence technology transfer agricultural research research and development |
| url | https://hdl.handle.net/10568/162429 |
| work_keys_str_mv | AT youliangzhi ataleoftwocountriesspatialandtemporalpatternsofriceproductivityinchinaandbrazil AT youliangzhi taleoftwocountriesspatialandtemporalpatternsofriceproductivityinchinaandbrazil |