Frömmel, Michael; Kruse, Robinson - In: Quantitative Finance 12 (2012) 11, pp. 1723-1732
We analyse the time series properties of the S&P500 dividend--price ratio in the light of long-memory, structural breaks and rational bubbles. We find an increase in the long-memory parameter in the early 1990s by applying a test recently proposed by Sibbertsen and Kruse [<italic>J. Time Series Anal.</italic>,...