In single-obligor default risk modelling, using a background filtration in conjunction with a suitable embedding hypothesis (generally known as H-hypothesis or immersion property) has proven a very successful tool to separate the actual default event from the model for the default arrival...

In this paper we show how cross-sectional correlations between Private Equity (PE) and Public Market Equity (PM) returns can be approximated, resolving the lack of time series PE data. Based on a sample comprising 2,380 realized PE projects, we observe low crosssectional correlations between PE...

We characterize the conditions under which firms choose to (i) merge, (ii) form an alliance, or (iii) trade assets. For that prupose, we distinguish between the firms' assets (what can be traded in isolation), thei knowhow (what can be learned but not traded), and their core competencies (what...

Recent organizational theories suggest that there is a tradeoff between loyalty and competence. This paper tests several such theories in the context of public agencies. Prime ministers, chancellors, and kings alike need to secure the (efficient or inefficient) loyalty of their agencies, such as...

In this paper we solve an intertemporal portfolio problem with correlation risk, using a new approach for the simultaneous modeling of stochastic correlation and volatility. The solutions of the model are in closed form and include an optimal portfolio demand for hedging correlation risk. We...

In this paper, we extend the earlier results of Jeanblanc and Valchev (2003) in the single name case to the case of multiple defaults of the issuers in a concentrated industry or homo- geneous bond market. We provide solutions for the pairwise default correlations and credit spreads in an...

A generalized correlated random walk is a process X_k of partial sums of random variables Y_j such that (X,Y) forms a Markov chain. For a sequence X^n of such processes where each Y^n_j takes only two values, we prove weak convergence to a diffusion process whose generator is explicitly...

Companies' investments in research and development (R&D) are usually associated with better growth opportunities incorporated in the firms' market valuation. This study focuses on the question how does the firms' market value attributable to R&D investments depend on the firms' ability to employ...

The purpose of this note is to review and understand what is called the shareholders unanimity result in the finance literature. We first will stress that "unanimity" is an equilibrium concept, which requires that an investment decision in a largely held firm be taken only if all shareholders...