水田賃貸借行動・市場理論と推定モデル

Abstract

The first objective of this paper is to construct a theory of paddy field renting behavior of the farms in a homogeneous regional market during medium and short time period. The second objective is to present a theory of paddy field tenancy market where the size of the paddy field rented and the rent are determined in the same region by aggregation of the behavior of the farms. These theories complement the theoretical part of my previous paper, quoted in the foot note 1) of this paper, that estimated quantitatively the effects of economic, institutional and social factors to the size of paddy field renting and rent in Japan excluding Hokkaido. The third objective is to show the gap between these theories and the estimation model used in my previous paper because of the considerable existence of black market renting of paddy field. The following new findings are made by this paper. 1. Based on the production economics theory, paddy field renting behavior of rice farmers owning large, medium and small size paddy field respectively is explained in a homogeneous region during the medium and short time period. 2. Aggregating the theory of renting behavior of these rice farms, a theory of adaptive determination of the size of paddy field renting and of rent is constructed in both suppliers' market and demanders' market. 3. Because of the existence of large black market renting, it is clarified that the adaptive adjusting processes in paddy field renting and rent must be specified separately in the market estimation model of this paper.