The paper focuses on the interaction between the solvency probability of a banking firm and the diversification potential of its asset portfolio when determining optimal equity capital. The purpose of this paper is to incorporate value at risk (VaR) into the firm-theoretical model of a banking...

According to many authors, so-called “central planning” had disappeared from European countries by 1989. However, this is by no means certain. Many former centrally planned economies still engage in central planning, in both the private and public sectors. Moreover, there is a striking...

Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit it. One of them is the existence of systemic risk that affects all of the policies at the same time. We introduce here a probabilistic approach to examine the consequences of...