A Simple Time Series Test of Endogenous vs. Exogenous Growth Models: An Application to the United States
通过检验政策冲击对GNP的长期影响，区分内生与外生增长模型，发现美国非军事结构资本对长期GNP有显著影响，支持强调公共结构资本的内生增长理论。
This paper presents evidence supporting endogenous growth models that emphasize public structural capital. The authors apply a simple test of endogenous vs. exogenous growth models. In exogenous growth economies temporary innovations to policy variables lead only to temporary changes in GNP levels, while in endogenous growth economies the innovations can lead to permanent changes in GNP levels. Of the seven U.S. policy variables they examine, only non-military equipment capital and non-military structural capital have a statistically and economically significant effect upon long-run GNP levels. Further estimation suggests that the non-military equipment capital result is not robust and that several disaggregate components of structural capital contribute significantly. Copyright 1996 by MIT Press.