Engsted, Tom; Pedersen, Thomas Q.; Tanggaard, Carsten - School of Economics and Management, University of Aarhus - 2010
We study in detail the log-linear return approximation introduced by Campbell and Shiller (1988a). First, we derive an upper bound for the mean approximation error, given stationarity of the log dividendprice ratio. Next, we simulate various rational bubbles which have explosive conditional...