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合作既是实验经济学关注的焦点,更是社会科学的基本问题。文章基于交流可以显著改善社会合作机制这一假设为研究出发点,以双重公共品自愿捐献为基础,通过对交流范围和频率的调整来检验交流机制效果的稳健性,并考察了交流机制的作用途径。研究发现:(1)交流机制运行的效果受条件限制。异质禀赋者之间的开放式交流可以促进合作,但同质禀赋者内部的封闭式交流则会破坏合作。(2)重复交流比一次性交流可以更好地促进社会合作。(3)没有任何一个因素可以单独解释在交流机制下合作水平的变化。文章的实验研究实际上给出了交流机制促进社会合作的前提条件——交流机制必须是开放式的,且最好是可持续的。
Cooperation is not only the focus of experimental economics, but also the basic issue of social sciences. Based on the assumption that communication can significantly improve the mechanism of social cooperation as the starting point for research, based on the voluntary donations of dual public goods, the paper examines the robustness of the communication mechanism through the adjustment of the scope and frequency of communication and examines the ways in which the communication mechanism works . The findings are as follows: (1) The effect of AC mechanism operation is limited by the conditions. Open exchanges between heterogeneous endowments can promote cooperation, but closed exchanges within the same endowment will undermine cooperation. (2) Repeated exchanges can promote social cooperation better than one-time exchanges. (3) There is not a single factor that can solely explain the changes in the level of cooperation under the exchange mechanism. The experimental study of the article actually gives the preconditions for the exchange mechanism to promote social cooperation - the communication mechanism must be open-ended and it is best to be sustainable.