A Tale of Two Countries: Spatial and Temporal Patterns of Rice Productivity in China and Brazil
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.
|Date of creation:||2008|
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- Pardey, Philip G. & Alston, Julian M. & Chan-Kang, Connie & Magalhaes, Eduardo Castelo & Vosti, Stephen A., 2002.
"International And Institutional R&D Spillovers: Attribution Of Benefits Among Sources For Brazil'S New Crop Varieties,"
14422, University of Minnesota, Center for International Food and Agricultural Policy.
- Philip G. Pardey & Julian M. Alston & Connie Chan-Kang & Eduardo C. Magalhães & Stephen A. Vosti, 2006. "International and Institutional R&D Spillovers: Attribution of Benefits among Sources for Brazil's New Crop Varieties," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 88(1), pages 104-123.
- Alston, Julian M. & Pardey, Philip G. & Chan-Kang, Connie & Magalhaes, Eduardo Castelo & Vosti, Stephen A., 2004. "International And Institutional R&D Spillovers: Attribution Of Benefits Among Sources For Brazil'S New Crop Varieties," Staff Papers 14017, University of Minnesota, Department of Applied Economics.
- Timo Goeschl & Timothy Swanson, 2000. "Genetic use restriction technologies and the diffusion of yield gains to developing countries," Journal of International Development, John Wiley & Sons, Ltd., vol. 12(8), pages 1159-1178.
- Rosamond Naylor & Walter Falcon & Nikolas Wada & Daniel Rochberg, 2002. "Using El Nino-Southern Oscillation Climate Data To Improve Food Policy Planning In Indonesia," Bulletin of Indonesian Economic Studies, Taylor & Francis Journals, vol. 38(1), pages 75-91.
- Carter, Colin A. & Zhang, Bin, 1998. "The Weather Factor and Variability in China's Grain Supply," Journal of Comparative Economics, Elsevier, vol. 26(3), pages 529-543, September.
- Zhang, Siao-Bo & Kanbur, Ravi, 1999.
"What Difference Do Polarization Measures Make? An Application To China,"
7224, Cornell University, Department of Applied Economics and Management.
- X. Zhang & R. Kanbur, 2001. "What Difference Do Polarisation Measures Make? An Application to China," Journal of Development Studies, Taylor & Francis Journals, vol. 37(3), pages 85-98.
- Shorrocks, Anthony F, 1984. "Inequality Decomposition by Population Subgroups," Econometrica, Econometric Society, vol. 52(6), pages 1369-85, November.
- Kanbur, Ravi & Zhang, Xiaobo, 2001.
"Fifty Years of Regional Inequality in China: A Journey through Revolution, Reform and Openness,"
CEPR Discussion Papers
2887, C.E.P.R. Discussion Papers.
- Kanbur, Ravi & Zhang, Xiaobo, 2001. "Fifty Years Of Regional Inequality In China: A Journey Through Revolution, Reform And Openness," Working Papers 7236, Cornell University, Department of Applied Economics and Management.
- Shenggen Fan & Connie Chan-Kang & Keming Qian & K. Krishnaiah, 2005.
"National and international agricultural research and rural poverty: the case of rice research in India and China,"
International Association of Agricultural Economists, vol. 33(s3), pages 369-379, November.
- Fan, Shenggen & Chan-Kang, Connie & Qian, Keming & Krishnaiah, K., 2003. "National and international agricultural research and rural poverty: the case of rice research in India and China," EPTD discussion papers 109, International Food Policy Research Institute (IFPRI).
- Stanley Wood & Liangzhi You & Xiaobo Zhang, 2004.
"Spatial Patterns of Crop Yields in Latin America and the Caribbean,"
Latin American Journal of Economics-formerly Cuadernos de Economía,
Instituto de Economía. Pontificia Universidad Católica de Chile., vol. 41(124), pages 361-381.
- Wood, Stanley & You, Liangzhi & Zhang, Xiaobo, 2004. "Spatial patterns of crop yields in Latin America and the Caribbean:," EPTD discussion papers 124, International Food Policy Research Institute (IFPRI).
- Xiaobo Zhang & Shenggen Fan & Ximing Cai, 2002. "The Path Of Technology Diffusion: Which Neighbors To Learn From?," Contemporary Economic Policy, Western Economic Association International, vol. 20(4), pages 470-478, October.
- Fan, Shenggen & Hazell, P. B. R., 1999. "Are returns to public investment lower in less-favored rural areas?: an empirical analysis of India," EPTD discussion papers 43, International Food Policy Research Institute (IFPRI).
- Shorrocks, A F, 1980. "The Class of Additively Decomposable Inequality Measures," Econometrica, Econometric Society, vol. 48(3), pages 613-25, April.
- You, Liangzhi & Rosegrant, Mark W. & Fang, Cheng & Wood, Stanley, 2005. "Impact of global warming on Chinese wheat productivity:," EPTD discussion papers 143, International Food Policy Research Institute (IFPRI).
- Cabrer-Borras, Bernardi & Serrano-Domingo, Guadalupe, 2007. "Innovation and R&D spillover effects in Spanish regions: A spatial approach," Research Policy, Elsevier, vol. 36(9), pages 1357-1371, November.
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