论政府政策在保护性耕作技术采用中的作用：一个理论模型

In this paper, the author constructs a theoretical model to explain a farmer's adoption decision of conservation tillage. Conservation tillage is a production method that leaves more residues on the field after harvest. It is typically considered both cost-reducing and eco-friendly, with the multi-benefits of controlling soil erosion, increasing soil organic matter, conserving soil moisture, and reducing labor and energy costs. However, the adoption rate of conservation tillage systems is very low in China. The goal of this study is to explore potential reasons behind the low adoption rate of conservation tillage in China. This study considers factors specific to a typical farmer in rural China. These factors include small farm size, low ability of learning and adaptation, and low vulnerability to risk. Using this model, the author discusses alternative policy tools that can help improve a farmer's incentive to adopt conservation tillage.