Combining Economic Forecasts
经济预测的组合AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确比较四个计量模型对 GNP 的预测组合方法,研究对象和评价目标直接对应宏观预测方向。
经济预测的组合AI 解读 ↓
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A method for combining forecasts may or may not account for dependence and differing precision among forecasts. In this article we test a variety of such methods in the context of combining forecasts of GNP from four major econometric models. The methods include one in which forecasting errors are jointly normally distributed and several variants of this model as well as some simpler procedures and a Bayesian approach with a prior distribution based on exchangeability of forecasters. The results indicate that a simple average, the normal model with an independence assumption, and the Bayesian model perform better than the other approaches that are studied here.