Showing 1 - 10 of 12
We propose a new approach to the pricing and hedging of contingent claims under transaction costs in a general incomplete market in discrete time. Under the assumptions of a bounded mean-variance tradeoff, substantial risk and a nondegeneracy condition on the conditional variances of asset...
Persistent link: https://www.econbiz.de/10009576212
We determine the increase of the maximum risk over the minimax risk in the case that the optimally robust estimator for the false radius is used. This is done by numerical solution of the implicit equations which determine optimal robustness, for location, scale, and linear regression models,...
Persistent link: https://www.econbiz.de/10009616786
Credit risk refers to the risk of incurring losses due to unexpected changes in the credit quality of a counterparty or issuer. In this paper we give an introduction to the modeling of credit risks and the valuation of credit-risky securities. We consider individual as well as correlated credit...
Persistent link: https://www.econbiz.de/10009625799
We introduce the notion of a convex measure of risk, an extension of the concept of a coherent risk measure defined in Artzner et aL (1999), and we prove a corresponding extension of the representation theorem in terms of probability measures on the underlying space of scenarios. As a case...
Persistent link: https://www.econbiz.de/10009615426
This paper presents a general theory that works out the relation between coherent risk measures, valuation bounds, and … theory presented seems to fill a gap between arbitrage valuation on the one hand and single agent utility maximization or … full-fledged equilibrium theory on the other hand. "Coherent" valuation bounds strike a balance in that the bounds can be …
Persistent link: https://www.econbiz.de/10009581108
Empirical studies in family economics usually rely on questionnaires, statistical or panel data. Here we try to study experimentally some crucial aspects of engaging in a marriage. First the female partner can end the relationship or suggest one of the two forms of joint venture. Whereas a full...
Persistent link: https://www.econbiz.de/10009582415
The paper presents a model of endogenous growth in which firms are modeled as boundedly-rational, locally interacting, agents. Firms produce a homogeneous good employing technologies located in an open-ended technological space and are allowed to either imitate existing, similar practices or to...
Persistent link: https://www.econbiz.de/10002132888
As innovation becomes an ever more central issue for the development of firms and world economies, so the need for improved assessments of innovative performance grows more urgent. This paper suggests that trademark analysis can contribute in capturing relevant aspects of innovation phenomena...
Persistent link: https://www.econbiz.de/10003211763
This paper investigates the relationships between firm organization attributes, namely a structure á la Chandler, and their inward looking or exploitationʺ attitude in R&D and innovation. We argue that because of sunk costs and learning processes an inward looking behavior is a consequence of...
Persistent link: https://www.econbiz.de/10003211779
The paper, as such a draft of a chapter for the second edition of the Handbook of Economic Socielogy, Edited by Neil J. Smelser and Richard Swedberg), is meant to offer some sort of roadmap accross a few fields of investigation concerning the relationships between technological learning and...
Persistent link: https://www.econbiz.de/10001691425