de Giorgio, Enrico; Hens, Thorsten; Rieger, Marc Oliver - Institut für Schweizerisches Bankwesen <Zürich> - 2009
The paper rst shows that nancial market equilibria need not to exist if agents possesscumulative prospect theory preferences with piecewise-power value functions. This is due tothe boundary behavior of the cumulative prospect theory value function, which might causean innite short-selling...