中國經濟改革與發展論壇系列講座

講座題目：中國企業競争加劇還是壟斷增強？抽樣數據的系統性估計偏差與修正  

主講人： 張瓊 講師、經濟學博士  

主要研究領域：人口與宏觀政策、企業投資經營行為  

講座時間：2013年05月22日11:30-13:30  

講座地點：bevictor伟德官网大會議室  

主講人介紹：  

Monopoly is one of themost basic and important economic issues, among which, its trend, namely moremonopoly or more competition over years, is the heart of such debates. In thispaper, both of trumpeted and balanced panel data imply fast decreasing HHIs,and simulated Zipf distributions consistently imply fast decreasing shapeparameters. For most industries in recent China, original trumpeted data dosignificantly overestimate trend in competition for industries which expand whereasunderestimate for industries which shrink, and this overestimation and/orunderestimation gets much more severe over periods. Besides, results fromsimulated Zipf distributions indicate more severe bias with original trumpeteddata in most cases.  

歡迎各位老師、同學前來參加！  

bevictor伟德官网  

2013年05月14日