The Timing of New Technology Adoption: The Case of MRI
研究美国医院采用核磁共振成像技术的时机，通过动态博弈模型分析抢先动机对采用时间的影响，发现抢先动机有显著但较小的作用，且企业不对称会削弱该效应。
ABSTRACT This paper studies the adoption of nuclear magnetic resonance imaging (MRI) by US hospitals. I consider a timing game of new technology adoption. The dynamic game takes timing decisions and strategic interaction into account. Using a panel data set of US hospitals, cross sectional variation in adoption times, market structure and demand is exploited to recover the profit and cost parameters. In counterfactuals, I quantify to what extent the timing of adoption is caused by a preemptive motive. I find a small but significant effect of preemptive motives, which are weakened by firm asymmetry.