In this paper, we consider the Heston-CIR model with Levy process for pricing in the foreign exchange (FX) market by providing a new formula that better fits the distribution of prices. To do that, first, we study the existence and uniqueness of the solution to this model. Second, we examine the...

Although the probability of default (PD) modeling has reached a great maturity in both academia and business, for the Italian case we demonstrate that banks' available PD models would be misleading if today applied directly to Italian banks. We argue that what determines the PD of Italian banks,...

We evaluate Brunnermeir’s Theory of Resilience in the context of complex system dynamics where there however can be local and global resilience, vulnerability, loss of resilience, cycles, disruptive contractions, and persistent traps. In the paper, we refer to three-time scales. First, for...

This study addresses market concentration among major corporations, highlighting the utility of relative entropy for understanding diversification strategies. It introduces entropic value at risk (EVaR) as a coherent risk measure, which is an upper bound to the conditional value at risk (CVaR),...

Italian Abstract: Questo lavoro di tesi ha l'obiettivo di analizzare le più comuni misure di rischio di mercato in ambito di risk management, quali VaR ed Expected Shortfall, nonché le procedure di validazione di tali misure, sia retrospettivi (Back testing) che prospettivi (Stress testing)....