An empirical investigation of the relationship between market share or concentration and return on equity or assets provides evidence for the existence of a profit-structure relationship in the European banking sector. Testing several market-power and efficient-structure theories reveals that...

This paper employs stochastic frontier cost and profit models to estimate economies of scale as well as X-efficiency for multi-billion dollar European and U.S. banks in the period 1995-1999. Empirical results with respect to separate analyses of large European and U.S. banks are strikingly...

In this paper we focus on the assumption of a common efficient frontier when performing an efficiency study for the banking sector. The fact that environmental factors that are not appropriately controlled may easily bias efficiency estimates. First, we estimate a common cost and profit...

In this paper, I investigate whether improving the traditional SCP model gives additional insights in the existence of market power in the Dutch banking market. I first improve the measurement of market structure. Then, I introduce a simple Cournot-model, which results in a more flexible measure...

A persistent paradox in stochastic frontier efficiency research is that we cannot compare the X-efficiency of firms without assuming these firms to operate under a common frontier. In this paper, we address this imbalance by constructing so-called metafrontiers. Specifically, we build on recent...

This paper investigates competition in the Dutch non-life insurance industry indirectly by measuring scale economies and X-inefficiency, assuming that strong competition would force insurance firms to exploit unused scale economies and to push down inefficiencies. We observe substantial...