The Effects of Regulatory Tools on Organizational Populations
用组织生态学框架分析监管活动如何直接影响或间接影响企业进入、退出和市场结构，并以健康维护组织行业为例提出具体命题。
One of the main activities of regulation is the control of market development by influencing the number of firms in an industry, their entry into an industry, and their exit from an industry. Population ecology is used as a framework for explaining both the direct and indirect effects of regulatory activity on entry, exit, and market structure. This framework is then used to derive specific propositions about regulatory effects on entry, exit, and market structure in the health maintenance organization industry.