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We derive a closed-form solution for the price of a European call option in the presence of ambiguity about the stochastic process that determines the variance of the underlying asset's return. The option pricing formula of Heston (1993) is a particular case of ours, corresponding to the case in...
Persistent link: https://www.econbiz.de/10010617858
Literature on dynamic portfolio choice has been finding that volatility risk has low impact on portfolio choice. For example, using long-run U.S. data, Chacko and Viceira (2005) found that intertemporal hedging demand (required by investors for protection against adverse changes in volatility)...
Persistent link: https://www.econbiz.de/10010634122
We introduce ambiguity about the variance of the risky asset's return in the model of Chacko and Viceira (2005) for dynamic consumption and portfolio choice with stochastic variance. We find that, with investors being able to update their portfolio continuously (as a function of the...
Persistent link: https://www.econbiz.de/10008457955
We consider a version of the intertemporal general equilibrium model of Cox et al. (Econometrica 53:363–384, <CitationRef CitationID="CR10">1985</CitationRef>) with a single production process and two correlated state variables. It is assumed that only one of them, Y <Subscript>2</Subscript>, has shocks correlated with those of the economy’s output rate...</subscript></citationref>
Persistent link: https://www.econbiz.de/10010989109
We derive a closed-form solution for the price of a European call option in the presence of ambiguity about the stochastic process that determines the variance of the underlying asset’s return. The option pricing formula of Heston (Rev Financ Stud 6(2):327–343, <CitationRef CitationID="CR43">1993</CitationRef>) is a particular case of...</citationref>
Persistent link: https://www.econbiz.de/10010989561
We develop a model that is a synthesis of the two-sided markets duopoly model of Armstrong (2006) with the nested vertical and horizontal dierentiation model of Gabszewicz and Wauthy (2012), which consists of a linear city with dierent consumer densities on the left and on the right side of the...
Persistent link: https://www.econbiz.de/10010770516
We propose a profit-sharing rule that maximizes sustainability of cartel agreements. This rule is such that the critical discount factor is the same for all the firms. If a cartel applies this rule, then asymmetries among firms may not hinder collusion (contrarily to the typical finding in the...
Persistent link: https://www.econbiz.de/10010842610
This paper proposes a general framework to study the sustainability of collusion in markets where demand growth (although deterministic) is not restricted to occur at a constant rate and may trigger future entry. It is shown that, typically, entry occurs later along the collusive path than along...
Persistent link: https://www.econbiz.de/10010842612
We study competition between two shopping centers (department stores or shopping malls) located at the extremes of a linear city. In contrast with the existing literature, we do not restrict consumers to make all their purchases at a single place. We obtain this condition as an equilibrium...
Persistent link: https://www.econbiz.de/10010842622
We study general equilibrium with private and incomplete state verification. Trade is agreed ex ante, that is, before private information is received. It is useful to define a list of bundles as a derivative good that gives an agent the right to receive one of the bundles in the list....
Persistent link: https://www.econbiz.de/10005001184