The Utilization of Competing Technologies Within the Firm: Evidence from Cardiac Procedures
研究医院内部不同技术团队的技术地位如何影响竞争性手术（如冠心病治疗）的使用率，发现技术地位越高，其相关技术使用率越高，尤其对临界患者影响最大。
This paper examines the role of technological status in determining the rates at which competing techniques are used within a firm. Consistent with prior studies, technological status is measured on the basis of an actor's prior contributions to the body of knowledge concerning a given technique. The empirical analysis considers two treatments for coronary artery disease (CAD), each of which is associated with a distinct professional group within a hospital. These two groups are often characterized as engaging in a “turf war” for patients. After controlling for several factors that might explain technological choice—the clinical severity of patients, the relative quality of the two procedures at a given facility, firm-level financial performance, and other firm-level characteristics—I find that the technological status of the group associated with each technique affects the relative rate at which it is used within a given hospital. Moreover, this effect is strongest for patients at the margin between the two techniques. These results suggest that viewing the choice between competing innovations as a single, firm-level decision may not always capture the true dynamics underlying such a situation.