Hu, Ruifa; Huang, Jie; Pray, Carl E.; Huang, Jikun - International Association of Agricultural Economists - IAAE - 2006
about whether intellectual property rights would induce private research in developing countries. China passed its plant … varieties of rice in three provinces of China to estimate the impact of PVPA on seed prices and area planted to a variety. We … China PVPA may provide some incentive for firms invest in research. However, we could not directly test whether PVPA induces …