Optimal Arrangements for Distribution in Developing Markets: Theory and Evidence
研究了合同执行受限环境下分销商与信贷受限供应商的关系，提出最优自我执行安排，并在乌干达农村实地实验验证其效果。
A large literature examines demand-side barriers to product adoption. In this paper, we examine supply-side barriers in a setting with limited contract enforcement. We model the relationship between a distributor and its credit-constrained vendors. We show that the optimal self-enforcing arrangement can be implemented by providing vendors with a line of credit and the option to buy additional units at a fixed price. Moreover, the structure of this arrangement is optimal both for profit-maximizing firms and for nonprofit organizations with limited resources. We test the arrangement using a field experiment in rural Uganda. We find that the model-implied optimal arrangement increased distribution significantly compared to a standard contract. However, growth was lower than predicted by the model because vendors were unwilling to extend credit to customers and did not have access to a reliable savings technology. We discuss several recent technological innovations that help to overcome both of these challenges.