CREATING A LAB IN THE FIELD: ECONOMICS EXPERIMENTS FOR POLICYMAKING
聚焦于人工和特定框架的田野实验（称为“类实验室田野实验”）在政策制定中的作用，通过发展中国家农村案例，识别其四个主要目的，并讨论可推广性、九项基本原则及未来研究方向。
Abstract In this paper, I focus on the role that artefactual and certain framed field experiments (what I term “lab‐like field experiments” or LFEs) play in informing policymaking. Using examples, primarily from rural contexts in developing countries, I identify four main purposes of LFEs: (1) to test theories or heuristic principles; (2) to identify and estimate parameters associated with characteristics; (3) to explore the structural nature of parameters derived from empirical methods including other types of experiments; and (4) to assess methodological difficulties associated with LFEs and how these can impact parameter estimates. I address the importance of generalizability for LFEs that are intended to inform policymaking and in the process, emphasize the complementary role between LFEs and other empirical methods, in particular other experiments. Finally, I discuss nine basic principles for conducting LFEs and suggest four directions for future research.