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Stock market optimism and participation cost: a mean-variance estimation

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  • Monica Paiella
  • Andrea Tiseno

Abstract

This paper estimates the costs of participating to the stock market, together with the cross sectional dispersion of stock market optimism. Our analysis is based on a mean-variance framework, when there is a riskless asset (cash), which makes the allocation of the investment in risky assets (stocks and bonds) independent on preferences. Within this framework, we derive �structural� decision rules for the composition of the risky asset portfolio to be e�cient. These rules depend on the amount invested in the risky portfolio and on investors' optimism, which are the determinants of the stock market return expected by a household, when participation involves a �xed cost. Using these rules and the heterogeneity in risky assets holdings and in the degree of optimism, we identify both the fixed costs of stock investment This paper estimates the costs of participating to the stock market, together with the cross sectional dispersion of stock market optimism. Our analysis is based on a mean-variance framework, when there is a riskless asset (cash), which makes the allocation of the investment in risky assets (stocks and bonds) independent on preferences. Within this framework, we derive �structural� decision rules for the composition of the risky asset portfolio to be e�cient. These rules depend on the amount invested in the risky portfolio and on investors' optimism, which are the determinants of the stock market return expected by a household, when participation involves a �xed cost. Using these rules and the heterogeneity in risky assets holdings and in the degree of optimism, we identify both the fixed costs of stock investment

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Bibliographic Info

Paper provided by Netherlands Central Bank, Research Department in its series DNB Working Papers with number 040.

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Date of creation: May 2005
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Handle: RePEc:dnb:dnbwpp:040

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Keywords: heterogeneous household portfolios; mean-variance frontier; participation cost; expectation error;

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  1. Merton, Robert C, 1973. "An Intertemporal Capital Asset Pricing Model," Econometrica, Econometric Society, vol. 41(5), pages 867-87, September.
  2. Attanasio, Orazio P., 1999. "Consumption," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 11, pages 741-812 Elsevier.
  3. Monica Paiella, 2006. "The Foregone Gains of Incomplete Portfolios," CSEF Working Papers 156, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
  4. Merton, Robert C., 1971. "Optimum consumption and portfolio rules in a continuous-time model," Journal of Economic Theory, Elsevier, vol. 3(4), pages 373-413, December.
  5. Fabio Panetta & Roberto Violi, 1999. "Is there an Equity Premium Puzzle in Italy? A Look at Asset Returns, Consumption and Financial Structure Data over the Last Century," Temi di discussione (Economic working papers) 353, Bank of Italy, Economic Research and International Relations Area.
  6. Carol C. Bertaut, 1998. "Stockholding Behavior Of U.S. Households: Evidence From The 1983-1989 Survey Of Consumer Finances," The Review of Economics and Statistics, MIT Press, vol. 80(2), pages 263-275, May.
  7. Haliassos, Michael & Bertaut, Carol C, 1995. "Why Do So Few Hold Stocks?," Economic Journal, Royal Economic Society, vol. 105(432), pages 1110-29, September.
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Cited by:
  1. Alessandro Bucciol, 2006. "The Roles of Temptation and Social Security in Explaining Individual Behavior," "Marco Fanno" Working Papers 0032, Dipartimento di Scienze Economiche "Marco Fanno".

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