The Profit-Structure Relationship in Banking--Tests of Market-Power and Efficient-Structure Hypotheses
通过引入X效率和规模效率的直接度量，检验了市场力量假说和效率结构假说对银行业利润与市场结构关系的解释力，发现两种假说均有一定支持但都不占主导。
This paper enters the debate between market-power and efficient-structure explanations of the profit-structure relationship in banking by including direct measures of X-efficiency and scale efficiency in the analysis. Structural models of two market-power hypotheses and two efficient-structure hypotheses are expressed in testable reduced form profit equations. This methodology is applied to thirty cross-sections of 1980s banking data. These data are somewhat consistent with one of the market-power and one of the efficient-structure hypotheses. However, none of the hypotheses are overwhelmingly important in explaining bank profits, suggesting that alternative theories be pursued. Copyright 1995 by Ohio State University Press.