Production scale，specialization and contract matching of litchi and longan farmers

The developing trend of farmers is from self-sufficiency to multiple occupations，then to specialization and production and operation scale. With the increase of trade scale and frequency through factor market and product market，the market risk of farmers is increasing. In order to avoid the sale risk and price risk of factor and product，farmers may use formal or informal contracts in the deal. Based on 209 farmers survey data of litchi and longan in Guangdong and Guangxi，this article chose“whether to sign product sale contract”，“whether to sign land lease contract”as explained variables，to study the farmers factors and products exchange behavior and contract choice behavior under different levels of scale，specialization. The empirical study results showed that：“sale revenue”for the scale farmers to“whether to sign product sale contract”had a significant impact；“planting area” for the average farmers to“whether to sign land lease contract” had a significant effect；Specialization of composite index of scale farmers to“whether to sign product sale contract”had a significant effect，for the average farmers to “whether to sign land lease contract” had a significant effect，“planting area ratio” of the scale farmers to“ whether to sign product sale contract” had a significant impact.