中央计划经济下的产权和制度变迁理论

制度效率一直是制度经济学的关键问题。可信度理论从制度的功能入手分析制度效率，是解释制度效率的非常有益的理论创新。但已有可信度的度量方法存在一些缺陷。对此，研究者提出以交易成本结构来度量制度可信度的方法。
通过内生交易成本占交易成本的比重、交易成本占总成本的比重，构成交易成本结构系数。然后，根据制度可信度和交易成本结构的对应关系，构建制度可信度评估模型，从而对制度的可信度进行分析。以内蒙古翁牛特旗的生态治理政策为案例，纵向和横向比较了两项生态治理政策的政策可信度。案例研究表明，本文构建的制度可信度评价模型可行，不仅可进行制度可信度的时间序列比较，还能对不同制度的可信度进行横向对比，很好地弥补了现有可信度测量方式的缺陷，为制度可信度的定量评估提供了新的尝试，具有重要意义。

The Nature of the Firm

The need to assess institutional efficiency remains a key issue in institutional economics. Credibility theory is a useful theoretical innovation that uses institutional function to analyze institutional efficiency. However, current credibility measurement methods have shortcomings. In this research, we develop a method to measure institutional credibility based on the transaction cost structure. We use the ratio of endogenous transaction costs to transaction costs, and the ratio of transaction costs to total cost, to get the transaction cost structure coefficient.
Then, based on the correspondence between institutional credibility and the transaction cost structure, we develop a model to analyze and evaluate institutional credibility. As a case study, we provided a longitudinal and horizontal comparison of the credibility of two ecological governance policies from Ongniud Banner in Inner Mongolia. The study shows that our institutional credibility evaluation model is feasible. The model can compare institutional credibility over time, and provide a horizontal comparison of the credibility of different institutions. Our proposed approach is of significance because it avoids the shortcomings of existing credibility measurement methods, and provides quantitative assessment of institutional credibility.