Demographics and fluctuations in Dividend/Price

Andrea Tamoni, Arie E.Gozluklu and Carlo Favero (carlo.favero@unibocconi.it)

No 345, Working Papers from IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University

Abstract: The dynamic dividend growth model (Campbell&Shiller, 1988) linking the log dividend yield to future expected dividend growth and stock market returns has been extensively used in the literature for forecasting stock returns. The empirical evidence on the performance of the model is mixed as its strength varies with the sample choice. This model is derived on the assumption of stationary dpt, dividend-yield. The empirical validity of such hypothesis has been challenged in recent literature (Lettau&Van Nieuwerburgh, 2007) with strong evidence on a time varying mean, due to breaks, in this financial ratio. In this paper, we show that the slowly evolving mean toward which the dividend price ratio is reverting is determined by demographic factors. We also show that a forecasting model based on demographics and a demand factor as captured by excess consumption in the sense of Lettau and Ludvigson(2004) overperforms virtually all alternative models proposed in the empirical literature in the framework of the dynamic dividend growth model. Finally, we exploit the predictability of demographic factors to project the equity risk premium up to 2050.

Date: 2008
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