Narrow search
Showing 171 - 180 of 330
Cover Image
Actuarial applications of the linear hazard transform in mortality immunization
Tsai, Cary Chi-Liang; Chung, San-Lin - In: Insurance: Mathematics and Economics 53 (2013) 1, pp. 48-63
are positive) by the strategy of matching two durations or one duration and one convexity of the weighted surplus at time …
Persistent link: https://www.econbiz.de/10010681884
Cover Image
Convexity and marginal contributions in bankruptcy games
Plata-Perez, Leobardo; Sanchez-Perez, Joss - In: EconoQuantum, Revista de Economia y Negocios 8 (2011) 1, pp. 61-72
En este trabajo analizamos dos definiciones naturales de convexidad para los juegos de bancarrota, una de ellas fue introducida por Aumann y Maschler (1985). En particular, mostramos que la convexidad, entendida como contribuciones marginales crecientes, no se satisface en el juego presentado...
Persistent link: https://www.econbiz.de/10010628397
Cover Image
Mutual fund risk and market share-adjusted fund flows
Spiegel, Matthew; Zhang, Hong - In: Journal of Financial Economics 108 (2013) 2, pp. 506-528
in these studies can yield false convexity estimates. We show that such heterogeneity obtains in practice. Along these … to hold. Moreover, convexity with fractional flows (which we confirm) largely disappears in a conditional analysis that …. Using this alternative specification, we again find no evidence of convexity in the flow-performance relation. We conclude …
Persistent link: https://www.econbiz.de/10010664045
Cover Image
Distributional Comparative Statics
Jensen, Martin Kaae - Department of Economics, University of Birmingham - 2012
An important set of questions in economics concern how changes in the distribution of economic parameters (income, wealth, productivity, distortions, information, etc.) impact individual choices and market outcomes. We currently do not have tools to answer such questions. In this paper, I...
Persistent link: https://www.econbiz.de/10010602478
Cover Image
A flexible approach to location problems
Rodríguez-Chía, Antonio M.; Nickel, Stefan; Puerto, Justo - In: Computational Statistics 51 (2000) 1, pp. 69-89
When dealing with location problems we are usually given a set of existing facilities and we are looking for the location of one or several new facilities. In the classical approaches weights are assigned to existing facilities expressing the importance of the new facilities for the existing...
Persistent link: https://www.econbiz.de/10010759193
Cover Image
Conditions for the uniqueness of optimal policies of discounted Markov decision processes
Cruz-Suárez, Daniel; Montes-de-Oca, Raúl; … - In: Computational Statistics 60 (2004) 3, pp. 415-436
convexity assumptions, but the third one does not need this kind of assumptions. However, it needs certain stochastic order …
Persistent link: https://www.econbiz.de/10010759326
Cover Image
Upper-semi-continuity and cone-concavity of multi-valued vector functions in a duality theory for vector optimization
Kouada, Issoufou - In: Computational Statistics 46 (1997) 2, pp. 169-192
Following a few words on multifunctions in the mathematical literature, a very brief recall on dual spaces, some preliminary notations and definitions in the introduction, we give some results on those functions in the second paragraph. In the third paragraph, a duality theory in...
Persistent link: https://www.econbiz.de/10010759517
Cover Image
Time-Varying Incentives in the Mutual Fund Industry
Olivier, Jacques; Tay, Anthony - C.E.P.R. Discussion Papers - 2008
convexity of the flow-performance relationship varies with economic activity. We show that the effect is economically large and … implications of the time-varying convexity for the incentives of managers to alter strategically the risk of their portfolios. We …
Persistent link: https://www.econbiz.de/10005114425
Cover Image
Convexity of Bertrand oligopoly TU-games with differentiated products
Lardon, Aymeric - HAL - 2010
that the convexity property holds for this class of games. Then, following Chander and Tulkens (1997) we consider the gamma …
Persistent link: https://www.econbiz.de/10008791487