To investigate the characteristics of service value of the karst rocky desertification ecosystem, we take water conservation, soil conservation, carbon-fixation and oxygen-production, production of organic matter, and purification of atmospheric environment as function indicators, to conduct...

On the basis of introducing relevant theories of Engel’s coefficient, this paper analyzes the limitation of these theories in practical application currently in China, for example, continuing to use original theory, not in line with reality of China; comparison invalidity in length and...

In the perspective of new institutional economics, we regard farmers’ cooperatives as a “contractual set†integrating a series of long-term contractual relations, and transform the selection problem of organization forms into selection problem of contractual model within...