A study of the Effects of the Producers' Rice Price Decline to the Increase of the Rice Farms' Size

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Since the Japanese government accepted the partial liberalization of the Japan's rice market from 1995, it is possible that tariffication may result in 2000. In order for rice farming to remain in Japan in the 21st century, it is necessary to increase the sizes of rice farms through renting and purchases of paddy fields and to assure the supply of less expensive, delicious and safe rice to the Japanese people.In this study, how the renting and purchases of paddy fields by rice farms have been affected by policy, economic and technological factors in Hokkaido and rest of Japan are econometrically identified, and appropriate policy measures for the increase of the rice farm size by the renting and transactions are sought based on the identification.For the econometric study of the renting, a theoretical model of disequilibrium adjustments in the rented paddy fields' area and their rent, taking illegal renting into account, is constructed, and the econometric identifications mentioned just above and clarifications of the adjustment processes are conducted, using the statistics collected in the Agricultural Land Law institution.In the econometric study of paddy field purchases, the effects of the economic, policy and technological factors are sought in Hokkaido where the structural improvements in the rice farms had progressed very rapidly in comparison with rest of Japan.