This paper investigates economies of scope in the US insurance industry over the period 1993-2006. We test the conglomeration hypothesis, which holds that firms can optimize by operating a diversity of businesses, versus the strategic focus hypothesis, which holds that firms can best add value...

We provide evidence on the validity of the conglomeration hypothesis versus the strategic focus hypothesis for financial institutions using data on U.S. insurance companies. We distinguish between the hypotheses using profit scope economies, which measures the relative efficiency of joint versus...

This paper presents a comparative analysis of frontier cost efficiency methodologies by applying a wide range of econometric and mathematical programming techniques to a data set consisting of 445 life insurers over the period 1988-1992. The primary objective is to provide new information on the...

This paper analyzes the efficiency of stock and mutual organizational forms in the property-liability insurance industry using nonparametric frontier efficiency methods. We test the managerial discretion hypothesis, which predicts that the market will sort organizational forms into market...

We use data on U.S. insurance companies to examine the validity of the conglomeration hypothesis versus the strategic focus hypothesis for financial institutions. We distinguish between the hypotheses using profit scope economies, which measures the relative efficiency of joint versus...