Comparative Study of Earnings Forecasts Techniques: Which one generates the most accurate earnings forecasts under Chinese environment?Tools Zhang, Huipu (2014) Comparative Study of Earnings Forecasts Techniques: Which one generates the most accurate earnings forecasts under Chinese environment? [Dissertation (University of Nottingham only)] (Unpublished)
AbstractThis work has comparatively studied on the accuracy of earnings forecasts by random walk, exponential smoothing method and multiple-regression model, for different forecast horizons and different industries. The main difference of the current study from the prior literature is that this study firstly employs the data from Chinese listed firms, whereas the prior researchers generally use the US data. The primary objective of this study is to examine whether the prior findings of earnings forecasts are still held under Chinese environment and recommend which statistical forecasting method is most adaptive to the earnings forecasts for Chinese firms. The empirical result of this study shows that the exponential smoothing method is slightly superior to the random walk model while the multiple-regression model is outperformed by the other two methods for both one-year-ahead and two-year-ahead horizons. All forecast methods produce more accurate earnings forecasts for shorter horizon than longer horizon. Further, the combination method works only when there are large forecast errors and earnings forecasts generated by many techniques are combined. In addition, random walk model dominates the retail and electrical industries, while the exponential smoothing method dominates the real estate industry.
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