We propose in this article the use of a particular version of the tests of Robinson (1994) for testing seasonally fractionally integrated processes. The tests have standard null and local limit distributions and allow us to test unit and fractional seasonal roots even with different amplitudes...

Unobserved components time series models decompose a time series into a trend, a season, a cycle, an irregular disturbance, and possibly other components. These models have been successfully applied to many economic time series. The standard assumption of a linear model, often appropriate after...

Motivated by the seasonality found in equity returns, we create a Turn-of-the-Month (ToM) allocation strategy in the U.S. equity market and investigate its value in asset allocation. By using a wide variety of portfolio construction techniques in an attempt to address the impact of estimation...

This chapter is a survey of seasonal anomalies. Ziemba has been involved in the re- search and trading of such anomalies as the January turn-of-the-year effect since 1982. His research plus that of other academics plus the very useful practitioner research of Yale Hirsch's Stock Trader's Almanac...

Seasonality in stock markets is a regular and repetitive phenomenon occurring at some regular intervals of time, which may generate abnormal or excess returns. This paper explores the existence of seasonality in Indian stock market in four forms, namely, day-of-the-week effect, month-of-the-year...