In a model of real investments with Knightian uncertainty, decision makers deviate from expected utility theory by showing excessive risk aversion and focusing on no regret moves. Within the model, a positive net present value is no longer sufficient to ensure that a real investment is...

We develop a method for classification of works of art based on their price dynamics. The method is in the same spirit a factor models commonly used within financial economics. Factor models assume that price dynamics of assets are related to underlying fundamental characteristics. We assume...