| In recent market-oriented economy, it is whether the production factors are optimized or not that determines the developed economy degree and the economic development speed in a region. The rural land transfer is an effective approach to realize the optimization of the rural land resources. On the basis of a design of performance evaluation index system for rural land transfer and a comparison of the economic performance, social performance and integral performance of different rural land transfer modes, the rural land transfer modes are optimized to choose and the guarantee mechanism is constructed to regularize the rural land transfer and to improve the rural land transfer performances. The main contents of the dissertation are presented as follows.After the summary of the present rural land transfer modes, the two-party game model is constructed about the rent of land between the land-transferred-to-party and the land-transferred-out-party. And the property right theory and the principal-agent theory are combined in the dissertation and the features and performances are theoretically analyzed for the three kinds of rural land transfer modes, the direct type, the government participation indirect type and the agency participation indirect type. Then the land rent management is regarded as the deputy of the direct rural land transfer mode, the land reverse-rent-inverted-contract management as the deputy of government participation indirect rural land transfer mode, and the stock-cooperation management and the land trust mangemant as the deputy of the agency participation indirect rural land transfer mode.The set of performance evaluation index system is designed from the economic dimension and the social dimension in the dissertation. From three aspects of rural economy development, rural life improvement and rural industry development,11 indexes are chosen to evaluate the economic performance of rural land transfer. And five indexes are selected to evaluate the social performance of rural land transfer from two aspects of the country society harmony and the rural land environment. Then the analytic network process (ANP) method and the entropy-weight method are adopted to determine combination weights for all indices of rural land transfer economy performance evaluation and society performance evaluation. The empirical analysis results in Liuyang show that the land rent management, the land reverse-rent-inverted-contract management, the stock-cooperation management and the land trust management can all produce plus economic performances in different degrees. And the economic performances of them are respectively 51.02, 82.69,215.35 and 384.16. However the four typical rural land transfer modes do not all produce plus social performances as economic performances. The social performance of the land rent management is 3.41, the land reverse-rent-inverted-contract management-19.60, the stock-cooperation management 5.47 and the land trust management 1.84. It shows that it is difficult to judge that which rural land transfer mode is better than the other only from economy performance or social performance.So the rough set theory and the fuzzy comprehensive evaluation method are combinedly adopted to evaluate the integral performance of the rural land transfer modes. The results show that the integral performance of the land rent management is general, the land reverse-rent-inverted-contract management good, the stock-cooperation management and land trust management excellent. It appears that the rural land transfer mode which has the higher market degree can produce the better integral performance.Obviously the ultimate object of the performance comparisons is to choose the better rural land transfer mode. In the dissertation based on the results of performance comparisons, the application scopes of the direct type, the government participation indirect type and the agency participation indirect type are analyzed for rural land transfer. Taken Liuyang as an example, it is discussed about how to choose the optimal rural land transfer mode. At the same time, perfect guarantee mechanism is very important for whether the rural land transfer can create greater performance or not. So a set of institution arrangements are proposed for rural land transfer for China, which is appropriate to Chinese circumstances and can regularize the rural land transfer to improve its transfer performance, from such aspects as rural land cadastral document management, rural land transfer information issuance, rural land transfer price evaluation, rural land transfer market consummation, rural land transfer arbitration mechanism, rural land transfer matching service and soon.The main innovations of the dissertation are embodied in such aspects as follows. (1)The methods of information discussion with cadres, interview with farmers and deep accessing are adopted in the dissertation to carry out the spot investigation and to obtain a set of data. And the economic performances, the social performances and the integral performances are compared empirically and deeply of different rural land transfer modes. (2) From the perspective of marketization degree, the rural land transfer modes are classified into three types, the direct type, the government participation indirect type and the agency participation indirect type. And the property right theory and the principal-agent theory are combined in the dissertation to theoretically analyze the features and performances of the three kinds of rural land transfer modes. The classification is different from other scholars'classifications which depend on rural land transfer subjects or depending steps. So it has more research meanings and decision management meanings. (3) The set of performance evaluation index system is designed from the economic dimension and the social dimension for rural land transfer in the dissertation, which is integrated and suited for national situations of China. And such index system is relative few in existing research achievements. Then the analytic network process (ANP) method and the entropy-weight method are adopted to determine combination weights for all indices of rural land transfer economy performance evaluation and society performance evaluation. (4) A basic research hypothesis is proposed in the dissertation, which is about that different rural land modes may bring different transfer performances and the economic performance and the social performance of one rural land transfer mode are not both better than the other. After the hypothesis is proved by the empirical research, the rough set theory and the fuzzy comprehensive evaluation method are combinedly adopted to evaluate the integral performance of the rural land transfer modes. It is for the first time that the two methods are integrated to be used in the performance evaluation of rural land transfer. And evaluation results of integral performances provide a scientific basis for optimal choice of rural land transfer modes. |