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(A)symmetric Information Bubbles: Experimental Evidence
Asymmetric information has been necessary to explain a bubble in past theoretical models. This study experimentally analyzes traders? choices, with and without asymmetric information, based on the riding-bubble model. We show that traders have an incentive to hold a bubble asset for longer, thereby expanding the bubble in a market with symmetric, rather than asymmetric information. However, when traders are more experienced, the size of the bubble decreases, in which case bubbles do not arise, with symmetric information. In contrast, the size of the bubble is stable in a market with ...
The boy who cried bubble: public warnings against riding bubbles
Attempts by governments to stop bubbles by issuing warnings seem unsuccessful. This paper examines the effects of public warnings using a simple model of riding bubbles. We show that public warnings against a bubble can stop it if investors believe that a warning is issued in a definite range of periods commencing around the starting period of the bubble. If a warning involves the possibility of being issued too early, regardless of the starting period of the bubble, it cannot stop the bubble immediately. Bubble duration can be shortened by a premature public warning, but lengthened if it is ...