Age matters

Guo, Danqiao and Boyle, Phelim and Weng, Chengguo and Wirjanto, Tony (2019): Age matters.

Abstract

This paper starts from examining the performance of equally weighted 1/N stock portfolios over time. During the last four decades these portfolios outperformed the market. The construction of these portfolios implies that their constituent stocks are in general older than those in the market as a whole. We show that the differential performance can be explained by the relation between stock returns and firm age. We document a significant relation between age and returns. Since 1977 stock returns have been an increasing function of age apart from the oldest ages. For this period the age effect completely dominates the size effect.

• Item Type: MPRA Paper
• Language: English
• Keywords: Bootstrapped portfolio, rebalanced portfolio, age effect, size effect
• Subjects: G - Financial Economics > G1 - General Financial Markets > G10 - General; G - Financial Economics > G1 - General Financial Markets > G11 - Portfolio Choice ; Investment Decisions

References

Alquist, R., Israel, R., and Moskowitz, T. J. (2018). Fact, fiction, and the size effect. The Journal of Portfolio Management, 2018(1):082.

Barron, D. N., West, E., and Hannan, M. T. (1994). A time to grow and a time to die: Growth and mortality of credit unions in new york city, 1914-1990. American Journal of Sociology, 100(2):381–421.

Barry, C. B. and Brown, S. J. (1984). Differential information and the small firm effect. Journal of Financial Economics, 13(2):283–294.

Benartzi, S. and Thaler, R. H. (2001). Naive diversification strategies in defined contribution saving plans. American Economic Review, 91(1):79–98.

Bessembinder, H. (2018). Do stocks outperform treasury bills? Journal of Financial Economics, 129(3):440–457.

Brennan, M. J. and Torous, W. N. (1999). Individual decision making and investor welfare. Economic Notes, 28(2):119–143.

Chang, Y., Gomes, J. F., and Schorfheide, F. (2002). Learning-by-doing as a propagation mechanism. American Economic Review, 92(5):1498–1520.

DeMiguel, V., Garlappi, L., and Uppal, R. (2009). Optimal versus naive diversification: How inefficient is the 1/N portfolio strategy? The Review of Financial Studies, 22(5):1915–1953.

Doidge, C., Karolyi, G. A., and Stulz, R. M. (2017). The U.S. listing gap. Journal of Financial Economics, 123(3):464–487.

Fichman, M. and Levinthal, D. A. (1991). Honeymoons and the liability of adolescence: A new perspective on duration dependence in social and organizational relationships. Academy of Management Review, 16(2):442–468.

Garnsey, E. (1998). A theory of the early growth of the firm. Industrial and Corporate Change, 7(3):523–556. 32

Greiner, L. E. (1989). Evolution and revolution as organizations grow. In Readings in strategic management, pages 373–387. Springer. Hannan, M. T. and Freeman, J. (1984). Structural inertia and organizational change. American Sociological Review, pages 149–164.

Heaton, J., Polson, N., and Witte, J. H. (2017). Why indexing works. Applied Stochastic Models in Business and Industry, 33(6):690–693.

Horowitz, J. L., Loughran, T., and Savin, N. (2000). The disappearing size effect. Research in Economics, 54(1):83–100.

Jovanovic, B. (1982). Selection and the evolution of industry. Econometrica: Journal of the Econometric Society, pages 649–670.

Lin, X., Palazzo, B., and Yang, F. (2018). The risks of old capital age: Asset pricing implications of technology adoption. Working paper, SSRN 2535409.

Loderer, C. F. and Waelchli, U. (2010). Firm age and performance. Available at SSRN 1342248.

Loughran, T. and Ritter, J. R. (1995). The new issues puzzle. The Journal of Finance, 50(1):23–51.

Markowitz, H. (1952). Portfolio selection. The Journal of Finance, 7(1):77–91.

Plyakha, Y., Uppal, R., and Vilkov, G. (2015). Why do equal-weighted portfolios outperform value-weighted portfolios? Working paper, SSRN 2724535.

Ritter, J. R. (1991). The long-run performance of initial public offerings. The Journal of Finance, 46(1):3–27.

Shumway, T. (1997). The delisting bias in CRSP data. The Journal of Finance, 52(1):327–340. Sørensen, J. B. and Stuart, T. E. (2000). Aging, obsolescence, and organizational innovation. Administrative Science Quarterly, 45(1):81–112.

Ulen, T. S. and Newman, P. (1998). The New Palgrave Dictionary of Economics and the Law. Palgrave Macmillan UK. 33

Van Dijk, M. A. (2011). Is size dead? a review of the size effect in equity returns. Journal of Banking & Finance, 35(12):3263–3274.