Affiliation:
1. SISSA, Trieste; Abdus Salam International Centre for Theoretical Physics , Trieste
Abstract
Abstract
The authors study a simple model of an asset market with informed and non-informed agents. In the absence of non-informed agents, the market becomes information efficient when the number of traders with different private information is large enough. Upon introducing non-informed agents, the authors find that the latter contribute significantly to the trading activity if and only if the market is (nearly) information efficient. This suggests that information efficiency might be a necessary condition for bubble phenomena—induced by the behavior of non-informed traders—or conversely that throwing some sands in the gears of financial markets may curb the occurrence of bubbles.
Subject
General Economics, Econometrics and Finance
Reference21 articles.
1. Berg, J., Marsili, M., Rustichini, A., and Zecchina, R. (2001). Statistical Mechanics of Asset Markets with Private Information. Quantitative Finance, 1(2): 203–211. urlhttp://papers.ssrn.com/sol3/papers.cfm?abstract_id=257437.
2. Brock, W. A., Hommes, C. H., and Wagener, F. O. O. (2009). More Hedging Instruments May Destabilize Markets. Journal of Economic Dynamics and Control, 33(1): 1912–1928. urlhttp://www.sciencedirect.com/science/article/B6V85-4WJBBPJ-1/2/40e5b1ee44776e3b879835e8696d1739.
3. Caccioli, F., Marsili, M., and Vivo, P. (2009). Eroding Market Stability by Proliferation of Financial Instruments. European Physical Journal B, 71(4): 467–479. urlhttp://epjb.edpsciences.org/index.php?option=article&access=standard&Itemid=129&url=/articles/epjb/abs/2009/20/b080941/b080941.html.
4. Cass, D., and Citanna, A. (1998). Pareto Improving Financial Innovation in Incomplete Markets. Economic Theory, 11(3): 467–494. urlhttp://www.springerlink.com/content/0ge7nerm2qcl605l/.
5. Fama, E. F. (1970). Efficient Capital Markets: A Review of Theory and Empirical Work. Journal of Finance, 25(2): 383–417. urlhttp://www.jstor.org/pss/2325486.
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