Empirical studies of the consumption-wealth relationship often assume a framework in which aggregate household spending depends linearly on wealth, the underlying state variable. These studies have given rise to many estimates of the wealth effect. In a general equilibrium setting, however, both...

We investigate financial markets under model risk caused by uncertain volatilities. For this purpose we consider a financial market that features volatility uncertainty. To have a mathematical consistent framework we use the notion of G-expectation and its corresponding G-Brownian motion...