search query: @indexterm time series / total: 413
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Author: | Guerard, J. B. Jr. |
Title: | An investigation into adequate data for estimating annual earnings time series models. |
Journal: | European Journal of Operational Research
1989 : APR 14, VOL. 39:3, p. 243-253 |
Index terms: | TIME SERIES INCOMES COMPANIES |
Language: | eng |
Abstract: | The stability of corporate earnings per share (eps) time series models as the length of time series is altered, is examined. A sample of 35 chemical, food and utility firms' earnings per share is analysed during 1920-1979 period. Furthermore, outlier analysis is applied in further developing the nearly random walk with drift earning models. Significant outliers are found for the majority of the sample: however, outlier augmented time series models do not produce exact lower forecasting errors the traditional random walk models. Furthermore, corporate earnings exhibit unit root difference stationariness. |
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