Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/22821 
Year of Publication: 
2002
Series/Report no.: 
Bonn Econ Discussion Papers No. 9/2002
Publisher: 
University of Bonn, Bonn Graduate School of Economics (BGSE), Bonn
Abstract: 
Let S=(S_t), t=0,1,...,T (T being finite), be an adapted R-valued process. Each component process of S might be interpreted as the price process of a certain security. A trading strategy H=(H_t), t= 1,...,T, is a predictable R-valued process. A strategy H is called extreme if it represents a maximal arbitrage opportunity. By this we mean that H generates at time T a nonnegative portfolio value which is positive with maximal probability. Let $F$ denote the set of all states of the world at which the portfolio value at time T, generated by an extreme strategy (which is shown to exist), is equal to zero. We characterize those subsets of F, on which no arbitrage opportunities exist.
Subjects: 
Arbitrage
martingale measure
JEL: 
G12
D40
G13
Document Type: 
Working Paper

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