Ambiguous beliefs may lead to speculative trade and bubbles. We demonstrate this by showing that the classical Harrison Kreps (1978) example of among agents with heterogeneous can be replicated having common but ambiguous beliefs. More precisely, we show same asset prices pattern obtained in equilibrium agents' recursive multiple-prior expected utilities set priors. While learning about true pr...

Markets are central to modern society, so their failures can be devastating. Here, we examine a prominent failure: price bubbles. Bubbles emerge when traders err collectively in pricing, causing misfit between market prices and the true values of assets. The causes of such collective errors remain elusive. We propose that bubbles are affected by ethnic homogeneity in the market and can be thwar...

This paper investigates the presence of speculative bubbles in Scandinavian countries namely Denmark, Finland, Norway, and Sweden over period from 1980Q1 to 2018Q4 searches for evidence bubble migration among those countries. First, we apply GSADF test developed by Phillips et al. (2015) on quarterly housing price-to-rent ratios exuberance episodic bubbles. Subsequently, examine between these m...