Showing 1 - 10 of 9,486
start from two simple, economically motivated axioms, namely absence of arbitrage (in the sense of NUPBR) and absence of … relative arbitrage among all buy-and-hold strategies (called static efficiency). A valuation process for a payoff is then … valuing by absence of arbitrage alone. We show that this always yields put-call parity, although put and call values …
Persistent link: https://www.econbiz.de/10011514353
Energy companies with commitments to meet customers' daily electricity demands face the problem of hedging load and … hedging decisions, while also intuitively capturing the key features of the electricity market. Driven by three stochastic … factors including the load process, our power price model allows for the calculation of closed-form pricing formulas for …
Persistent link: https://www.econbiz.de/10010718752
In this paper we propose a model to price European vulnerable options. We formulate their credit risk in a reduced form model and the dynamics of the spot price in a completely random generalized jump–diffusion model, which nests a number of important models in finance. We obtain a closed-form...
Persistent link: https://www.econbiz.de/10011190007
Typical models of bankruptcy and collateral rely on incomplete asset markets. In fact, bankruptcy and collateral add contingencies to asset markets. In some models, these contingencies can be used by consumers to achieve the same equilibrium allocations as in models with complete markets. In...
Persistent link: https://www.econbiz.de/10005061561
In this paper, we consider economies with (possibly endogenous) solvency constraints under uncertainty. Constrained inefficiency corresponds to a feasible redistribution yielding a welfare improvement beginning from every contingency reached by the economy. A sort of Cass Criterion (Cass (1972))...
Persistent link: https://www.econbiz.de/10005662321
stochastic mechanism. We explore the implications for pricing stock, index and foreign currency options of the assumption that … accounting for heterogeneous information arrival may minimize the ubiquitous pricing bias 'smile-effect' of standard option … pricing models. We propose a conceptually simple but numerically intensive maximum likelihood estimator of the parameters of a …
Persistent link: https://www.econbiz.de/10005830224
This article shows that portfolio constraints can give rise to rational asset pricing bubbles in equilibrium even if … there are unconstrained agents in the economy who can benefit from the induced limited arbitrage opportunities. Furthermore …
Persistent link: https://www.econbiz.de/10010594321
We prove indeterminacy of competitive equilibrium in sequential economies, where limited commitment requires the endogenous determination of solvency constraints preventing debt repudiation (Alvarez and Jermann (2000)). In particular, we show that, for any arbitrary value of social welfare in...
Persistent link: https://www.econbiz.de/10008566321
dimensions of the pricing formulation. This paper is the first that extends the technique for a generalized jump …
Persistent link: https://www.econbiz.de/10010719098
We study competitive equilibrium in sequential economies under limited commitment. Default induces permanent exclusion from financial markets and endogenously determined solvency constraints prevent debt repudiation. Our analysis shows that such an enforcement mechanism is essentially fragile,...
Persistent link: https://www.econbiz.de/10010604556