3# yrcyrc
这个就是题目
文章摘要如下:
Abstract
In this paper, I look at four models of firm profitability: two taken from Industrial Organization,
one from Finance, and one from the Economics of Exhaustible Resources. Only one predicts that
there will be a positive relationship between firm profitability and the structure of the market in
which the firm operates, and only that one views high profits as an indication of monopoly power.
Nevertheless, most antitrust authorities base their policies on a belief in those relationships. Using
panel data from 14 nonferrous-metal mining and refining markets, I find strong empirical support
only for the market-structure model.