Rural–urban land conversion is an inevitable phenome non in urbanization and industrialization. And the decision-making issue about this conversion is multiobjective because the socia decision maker (the whole of central government and local author ity) has to integrate the requirements of different interest groups (rural collective economic organizations, peasants, urban land us ers and the ones affected indirectly) and harmonize the sub-objects (economic, social and ecological outcomes) of this land allocation process. This paper established a multi-objective programming model for rural–urban land conversion decision-making and made some social welfare analysis correspondingly. Result shows tha the general object of rural–urban land conversion decision-making is to reach the optimal level of social welfare in a certain state of resources allocation, while the preference of social decision makers and the value judgment of interest groups are two crucia factors which determine the realization of the rural–urban land conversion decision-making objects.
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