reswitching activities and short-term thinking of bounded rational investors. Negative bubbles (market prices lower than … fundamentals) tend to occur if active portfolio managers exhibit high risk aversion, but are less frequent than positive bubbles. …

react in a timely fashion to changes in the environment, leading to real-time forecast improvements relative to other … methods of density forecast combination, such as Bayesian model averaging, optimal (static) pools, and equal weights. We show …

conventional unit root tests in modified forms can be used to construct early warning indicators for bubbles in financial markets … 1871, they are able to signal most of the consensus bubbles, defined as stock market booms for example by the IMF, and they … bubbles from the data. Finally, these early warning indicators are applied to data for several housing markets. In most of the …

Bubbles in asset markets have been documented in numerous experimental studies. However, all experiments in which … bubbles occur pay dividends after each trading day. In this paper we study whether bubbles can occur in markets without … may have inside information, and (2) the option to communicate with other traders. We find that bubbles can indeed occur …

This paper explores the characteristics associated with the formation of bubbles that occurred in the Hong Kong stock …