In this paper we propose a novel interval optimization approach for portfolio selection when imprecise forecasts are available. We consider investors acting their choices according to the prospect theory, where scenarios are provided in the form of approximate numbers. The resulting constrained...

We test the dynamic aspects of the loss aversion feature of Kahneman and Tversky (1979) and find that idiosyncratic volatility is negatively associated with unrealized gains of stock returns. Moreover, we show that this negative relationship is stronger for stocks with high individual investors'...

Stock market participation differs a lot across countries. Cultural dimensions could be a potential factor for that. We show that indeed uncertainty avoidance is linked to rates of stock market participation across countries. We can show even more that uncertainty avoidance has an indirect...