Numerous empirical studies have shown evidence of nonlinearities in financial time series, which can be of both a deterministic and a stochastic nature. Chaos is an example of the former, and heteroscedasticity in the conditional variance an example of the latter. We apply a test, the BDS test,...

We consider option pricing when dynamic portfolios are discretely rebalanced. The portfolio adjustments only occur after fixed relative variation of the stock price. The stock price follows a marked point process and the market is incomplete. We first characterize the equivalent martingale...

The aim of this study is to review what we know about depositors' behavior, using empirical observations and experimental data. I find that both fundamental problems and coordination failures between depositors explain depositors' behavior and therefore the emergence of bank runs. I show that...

The aim of this study is to review what we know about depositors' behavior, using empirical observations and experimental data. I find that both fundamental problems and coordination failures between depositors explain depositors' behavior and therefore the emergence of bank runs. I show that...