In this study we adopt Wang's (2002) heteroscedastic stochastic frontier model, which allows us to investigate bank cost efficiency and to measure the marginal effects of some variables on both the level and the variability of inefficiency. In recent years, the financial crisis has significantly...

Based on a modified version of a model used in Corvoisier and Gropp (2002) and de Guevara et al (2005), we argue that banks' soundness, the structural characteristics and efficiency of the banking sector and the development of the capital markets are forming a financial nexus. For a data set of...