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991.
992.
Wolfgang?BühlerEmail author Olaf?Korn Rainer?Sch?bel 《Review of Derivatives Research》2004,7(3):185-212
In this paper we investigate Metallgesellschafts problem of hedging long-term forwards with short-term futures. Very different hedging strategies have been proposed in the literature. We attribute these differences to the underlying valuation approaches for oil futures and empirically compare five model-based hedging strategies. In particular, we consider a strategy which results from a two-regime pricing model. This continuous-time equilibrium model reflects the observation that prices of oil futures exhibit a very different behavior for low and high oil prices. Our empirical study shows that time diversification is the dominant effect for an effective hedging of long-term oil forwards with short-term futures.
JEL classification G13, G30 相似文献
993.
>P>Summary. We provide a set of simple and intuitive set of axioms that allow for a direct and constructive proof of the Choquet Expected
Utility representation for decision making under uncertainty.
Received: October 29, 2002; revised version: November 13, 2002
RID="*"
ID="*" We thank Matthew Ryan for very useful comments and suggestions on related work and for encouraging us to write this
note.
Correspondence to: S. Grant 相似文献
994.
The German health insurance system is separated between the private and public sector by a social security ceiling. To reduce the risk selection of the current system we discuss the implications of the conversion of the upper income limit into a provision limit. Using a generational accounting approach, we find that such a conversion has a negative effect in respect of sustainability. In addition, we present the idea of a transfer premium, which reflects the value of the analyzed group of insurants. Our results show that with a transfer premium or in a system of lump-sum-premiums, the provision limit would have positive implications and would leave the German system more sustainable. 相似文献
995.
Information goods such as newspapers and magazines have a number of distinct economic characteristics such as a high fixed cost – low marginal (variable) cost structure and the possibility to subsidize content through selling advertising space. We develop a simple one-shot duopoly model that analyses strategic interaction in a market with such features. We focus on the firms best responses and test the theoretical predictions of the model empirically by panel regression techniques using a balanced panel data set of 60 Dutch consumer magazines over the period 1991–1998. Our 3SLS estimation results confirm the prediction of our model that the Dutch market for consumer magazines is characterized by strategic complementarity between magazine and ad prices. 相似文献
996.
This article develops a dual general equilibrium model to analyze the effects of intra-industry trade in both intermediate goods and final goods on the productivity in the final good production. Intra-industry trade in intermediate goods determines an increase in the number of intermediate good varieties available in the final good production, and intra-industry trade in final goods determines a reduction in the number of adaptations of an intermediate good to the final good production. Thereby, the productivity in the final good production increases. Different shares of intra-industry trade in intermediate goods and final goods in a general equilibrium setting implies that Jones' magnification effect and both the Rybczynski theorem and the Stolper-Samuelson theorem are not valid. 相似文献
997.
Adhering to accepted practices, not wanting to rock the boat, and squelching dissenting opinions sentence organizations to a repetition of their mistakes. To be successful, organizations must continually learn. Organizations that learn are competitive. They are on the leading edge. They create their own futures instead of being created by their futures. The objective of this article is to present a new approach to learning that greatly enhances the quality of training and educational programs. The key subjects include learning styles, left and right brain processing, and the 4MAT System. In addition, two brief case studies are presented. 相似文献
998.
Downs David H. Güner Z. Nuray hartzell David J. Torres Michael A. 《The Journal of Real Estate Finance and Economics》2001,22(1):63-80
This article examines the information content in a series of market commentaries covering the publicly traded real estate market. The data are constructed from REIT-specific announcements published in a widely disseminated source of market commentary. The empirical methodology is designed to test whether the unexpected price change and unexpected volume are significant on the announcement day. The results demonstrate that the market commentaries provide information that impacts prices and that investors use this information in their trading. Additional analysis suggests that prices change more in the period following the REIT boom than during an earlier period. This result seems somewhat puzzling given recent studies that report an increase in REIT market liquidity. 相似文献
999.
Dr. Josef Zweimüller 《Journal of Economics》1993,57(3):295-303
This paper studies the effects of the earnings test on retirement behavior. The earnings tests of most social security systems tax post0retirement earnings at a relatively high level and do not lead to actuarially fair increases in futere benefits. This results in discouragement of partial retirement. The paper shows that a reduction in the earnings test's tax rate is likely to increase part-time work, and that, in special cases, the increase in work effort may even lead to a reduction in the net transfer from social security to the individual.I wish to thank the Institute of Industrial Relations at UC Berkeley for its hospitality and support. This research has been financed by the Austrian Fonds zur Förderung der wissenschaftlichen Forschung. I am indebted to J. K. Brunner, W. T. Dickens, J. Falkinger, E. Lazear, T. Sikor, B.-A. Wickström, R. Winter-Ebmer, and two referees for comments on an earlier draft. 相似文献
1000.
Summary This paper applies an experimental testbed methodology to the evaluation of a proposed mechanism for allocating the right to land at the New York airports. The mechanism is called a zero-out auction because it is supposed to allocate the rights efficiently like an auction while leaving all of the consumer's surplus with the buyers (as opposed to allocating some to the seller as would be the case with an ordinary auction). A new behavioral hypothesis is introduced to account for limited rationality of individuals and unusual behaviors of the process. The axiom, called theunbiased expectations hypothesis, does a good job of modeling individual behavior in the context of a game model.We acknowledge the financial support of the National Science Foundation and the Caltech Laboratory for Experimental Economics and Political Science. Comments by David Grether, John Ledyard, Michael Levine, Jennifer Reinganum, and Richard Sutch have been very helpful. 相似文献