我国保险公司规模经济实证研究

从1980年中国恢复办理国内保险业务至今，保费收入快速增长，保险密度与保险深度不断提高，成绩斐然。但在保险业激烈竞争的面前，国内保险公司纷纷将扩展市场作为其发展的首要任务，积极扩展规模，以市场份额论英雄。问题在于，我国保险公司的规模与其经营效率是否存在直接的关系呢？本文运用超越对数成本函数，求得我国16家具有代表性的保险公司1998年-2006年的规模经济系数，并将这16家样本公司分成三组进行对比分析。实证研究表明，我国保险公司在整体上存在轻微的规模经济效应，但规模大的保险公司并不比规模小的保险公司具有更为明显的规模经济效应。

Ever since China resumed the domestic insurance business, the industry＇s premium income has been growing strongly and insurance density and penetration increasing constantly. Today, facing with intensifying competition, domestic insurers have all regard market expansion as its objective of first priority and market share become a matter of success or failure. The question is whether there is a positive correlation between the size of the insurer and its efficiency. The paper applied the translog cost function method to arrive at the scale of economy factor of 16 insurers during the period of 1998 to 2006, and segment them into 3 groups for ease of comparison. The exponential analysis indicated that Chinese insurers on the whole enjoy slight scale of economy, but larger companies don＇t necessarily exhibit more conspicuous scale of economy effect.