This paper examines a new model of credit risk measurement, the Variance Gamma- Merton one, which seems to be adequate for describing single default occurrence and default correlation in turbulent times. It is based on the notion of business time. Business time runs faster than calendar time...

This paper studies the dependence between coupled lives - both within and across generations - and its effects on prices of reversionary annuities in the presence of longevity risk. Longevity risk is represented via a stochastic mortality intensity. Dependence is modeled through copula...

This paper characterizes optimal intercorporate guarantees, under the classical trade-off between bankruptcy costs and taxation. Conditional guarantees, allowing the provider to maintain limited liability vis-à-vis the beneficiary, maximize joint value. They indeed achieve the highest tax...

This paper determines optimal capital structure and value of Holding-Subsidiary structures (HS), when there is a trade-off between bankruptcy costs and taxation. HS have higher firm value than their stand alone counterparts, as the holding provides a guarantee to its subsidiary's lenders which...

The paper studies the equilibrium value of bid-ask spreads and time- to-trade in a continuous-time, intermediated financial market. The endogenous spreads are the price at which brokers are willing to offer immediacy. In case intermediaries pay trading costs, it includes them too. We determine...

The paper explores the fit properties of a class of multivariate Lévy processes, which are characterized as time-changed correlated Brownian motions. The time-change has a common and an idiosyncratic component, to reflect the properties of trade, which it represents. The resulting process may...

The traditional multivariate Lévy process constructed by subordinating a Brownian motion through a univariate subordinator presents a number of drawbacks, including the lack of independence and a limited range of dependence. In order to face these, we investigate multivariate subordination,...

Artificial intelligence (AI) is a tool that financial intermediaries and insurance companies use or are willing to use in almost all their activities. AI can have a positive impact on almost all aspects of the insurance value chain: pricing, underwriting, marketing, claims management, and...

In this paper we use doubly stochastic processes (or Cox processes) in order to model the random evolution of mortality of an individual. These processes have been widely used in the credit risk literature in modelling default arrival, and in this context have proved to be quite flexible,...