Blending Theory and Data: A Space Odyssey
概述了空间经济学中结合经济理论与数据证据回答反事实问题的方法框架,并通过国际、区域和城市经济学的十二个实例展示如何最小化理论假设以弥合实证模式与问题之间的差距。
This article describes methods used in the field of spatial economics that combine insights from economic theory and evidence from data in order to answer counterfactual questions. I outline a general framework that emphasizes three elements: a specific question to be answered, a set of empirical relationships that can be identified from exogeneity assumptions, and a theoretical model that is used to extrapolate from such empirical relationships to the answer that is required. I then illustrate the application of these elements via a series of twelve examples drawn from the fields of international, regional, and urban economics. These applications are chosen to illustrate the various techniques that researchers use to minimize the theoretical assumptions that are needed to traverse the distance between identified empirical patterns and the questions that need to be answered.