Showing 81 - 90 of 772
This paper examines the effects of uncertainty and the choice of financial structure in a vertically differentiated duopoly. In the market model consumers are located along a continuum of taste parameters and prefer unanimously higher to lower qualities when quality prices are set at average...
Persistent link: https://www.econbiz.de/10005858441
Due to their underlying assumptions, the standard concepts of risk aversion and preference for the present are generally defined separately and represented by scalar measures, and this implies many shortcomings. More specifically, if measured by a scalar, the risk aversion remains unchanged,...
Persistent link: https://www.econbiz.de/10005858445
Building upon the works of Gilboa (1989), Shalev (1997) and De Waegenaere andWakker (2001), we show that a simple version of variation aversion, jointly witha myopia axiom allows to derive in an infinite setting a meaningful expressionfor evaluating income streams. Furthermore, we prove that...
Persistent link: https://www.econbiz.de/10005858451
Random sets might be considered from several possible viewpoints. A "Business-managerial" 'viewpoint' would prop the following definition : take all sets, list them and then pick one set from this list at random. An "Image analysis" 'viewp oint' would yield alternatively the following...
Persistent link: https://www.econbiz.de/10005858463
We consider a class of functions satisfying the gross-substitution property (GS-functions). We show that GS-functions are concave functions whose parquets are constributed by quasi-polymatroids. The class of conjugate functions to GS-functions turns out to be the class of polyhedral supermodular...
Persistent link: https://www.econbiz.de/10005858474
We outline a martingale duality method for determining the minimal entropy martingale measure in a general continuous semimartingale model, and provide the relevant verification results. This method is illustrated by a detailed case study of the Stein and Stein stochastic volatility model driven...
Persistent link: https://www.econbiz.de/10005858499
In a heterogenous agents framework, we study a randomized version of Zeeman's market model with fundamental and momentum traders. Using methods from random dynamical systems theory, we examine convergence properties of invariant measures which correspond to market equilibria. It turns out that...
Persistent link: https://www.econbiz.de/10005858500
Asset process driven by non-normal Lévy processes have become popular in the last few years. To be mentioned are models, where the asset processes are pure Lévy processes. Such models date back the work of Mandelbrot (1967). But also more complex models as for example stochastic volatility...
Persistent link: https://www.econbiz.de/10005858547
We investigate the theoretical and empirical difference between thestandard convexity adjustment and Forward Libor Model in a particular case oftwo-period Constant Maturity Swaps. Using daily data from 1991 to 1997, wesimulate the difference (spread) between the two-period CMS swap rates...
Persistent link: https://www.econbiz.de/10005858548
Credit Default Swaps (CDS) are in the process of becoming, liquid and extremelyinformative instruments of default risk. Yet, default swap market has severalnovel aspects that have not received much attention. In this paper we studyan aspect of CDS´s that relates to the prediction of financial...
Persistent link: https://www.econbiz.de/10005858549