Showing 1 - 10 of 98
Cet article expose la problématique de la volatilité des prix des matières premières, montre quels sont les moyens pour s’en protéger et explique comment les employer. Les instruments de couverture sont présentés en première section, en distinguant le type de besoin auquel ils...
Persistent link: https://www.econbiz.de/10008532326
In this note, we consider an economy with heterogeneous agents, differing by their time preference rate and by their beliefs. We show that at the Pareto optimum, the representative agent exhibits interesting behavioral properties. More precisely, starting from a standard model with expected...
Persistent link: https://www.econbiz.de/10009145292
In this paper, we show that behavioral features can be obtained at a group level when the individuals of the group are heterogeneous enough. More precisely, starting from a standard model of Pareto optimal allocations, with expected utility maximizers and exponential dis- counting, but allowing...
Persistent link: https://www.econbiz.de/10009195337
We address the problem of a social planner who, as in Weitzman (2001), gathers data on discount rates and wants to infer the socially efficient consumption discount rate. We propose an equilibrium approach and we analyse the expression and the properties of the resulting equilibrium discount...
Persistent link: https://www.econbiz.de/10008690255
Despite a large body of literature on the topic, empirical tests of real option models are scarce. The lack of data offers an initial explanation for this. However other intrinsic reasons could well explain why real options are difficult to test on large-scale studies. We show that the use of...
Persistent link: https://www.econbiz.de/10008529665
reverting and countercyclical (instead of constant in the standard model) market prices of risk, mean reverting and procyclical … (instead of constant) risk free rates, decreasing (instead of flat) yield curves in the long run, possibly higher returns and … higher risk premia in the long run (instead of a flat structure), momentum in stock returns in the short run, more variance …
Persistent link: https://www.econbiz.de/10008529672
This paper analyzes the special features of electricity spot prices derived from the physics of this commodity and from the economics of supply and demand in a market pool. Besides mean-reversion, a property they share with other commodities, power prices exhibit the unique feature of spikes in...
Persistent link: https://www.econbiz.de/10008532430
This paper introduces a valuation model of international pricing in the presence of political risk. Shipments between … political risk is modelled as a continous time jump process that affects the drift of the returns in the politically unstable …
Persistent link: https://www.econbiz.de/10009018423
In this paper, we characterize subjective probability beliefs leading to a higher equilibrium market price of risk. We … establish that Abel's result on the impact of doubt on the risk premium is not correct in general; see Abel [2002. An … introduce, on the set of subjective probability beliefs, market-price-of-risk dominance concepts and we relate them to well …
Persistent link: https://www.econbiz.de/10008532509
and Stiglitz 'model. In this case, we show that the optimal contract exhibits a deductible for the high health risk type … low health risk type. …
Persistent link: https://www.econbiz.de/10009644200