Fostel, Ana; Geanakoplos, John - Cowles Foundation for Research in Economics, Yale University - 2011
leverage emerges in equilibrium at the maximum level such that VaR = 0, so there is no default in equilibrium, provided that … have sufficiently heterogenous beliefs over three or more states, VaR = 0 fails to hold in equilibrium. We study commonly … different risk aversion. We find two main departures from VaR = 0. First, both examples show that with enough heterogeneity …