In this paper, a model of bounded rational investors investing their portfolio in a passive investment vehicle (e.g., an Exchange Traded Fund replicating a broad index) or an actively managed fund is presented. The model proposes that the quick reswitching of these short-term oriented investors...

Yes. By observing return reversals following unexpected responses to noisy public signals about market-wide common factors, we show that investors in the US equity market tend to over-respond to public signals for mature firms that are relatively easy to price—old, large, and dividend-paying...

We propose an extension of the class of rational expectations bubbles (REBs) to the more general rational beliefs setting of Kurz (1994a,b). In a potentially non-stationary but stationarizable environment, it is possible to hold more than one (small-r) “rational” expectation. When rational...