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| Diao, Xinshen; Zhang, Yi; Somwaru, Agapi. |
| This study, based on the data of China’s agricultural census of 1997, focuses on the land distribution among rural households and its effects on crop production structure and employment of labor and capital. The Census data show that the size of holdings surprisingly differs among households, and land rental activities has started to play an important role in land allocation. Grain production accounts for 80% of total sown area for each household group, indicating that self-sufficiency in grains production is still an important factor to farmers. Family members are a dominant source for China's agricultural labor force, regardless of the size of land held in each household. Machinery use in crop production is still not popular, while the scale of land held... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Crop Production/Industries. |
| Ano: 2000 |
URL: http://purl.umn.edu/16320 |
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| Koo, Bonwoo; Pardey, Philip G.; Qian, Keming; Zhang, Yi. |
| Notwithstanding the ambiguous research and productivity promoting effects of plant variety protections (PVPs), even in developed countries, many developing countries have adopted PVPs in the past few years to comply with their Trade-Related Aspects of Intellectual Property Rights (TRIPS) obligations. Seeking and maintaining PVPs reserves options to an expected revenue stream from the future sale of protected varieties, the value of which varies for a host of reasons. In this paper we empirically examine the pattern of plant variety protection applications in China since its PVP laws were first introduced in 1997. We place those PVP rights in the context of China's present and likely future seed markets to identify the economic incentives and institutional... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Intellectual Property Rights; Crop Improvement; Option Value; Seed Markets; Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/16052 |
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