Forecast Uncertainty— Ex Ante and Ex Post : U.S. Inflation and Output Growth
预测不确定性的事前与事后比较:美国通胀和产出增长AI 解读 ↓
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预测不确定性的事前与事后比较:美国通胀和产出增长AI 解读 ↓
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Survey respondents who make point predictions and histogram forecasts of macro-variables reveal both how uncertain they believe the future to be, ex ante, as well as their ex post performance. Macroeconomic forecasters tend to be overconfident at horizons of a year or more, but overestimate (i.e., are underconfident regarding) the uncertainty surrounding their predictions at short horizons. Ex ante uncertainty remains at a high level compared to the ex post measure as the forecast horizon shortens. There is little evidence of a link between individuals’ ex post forecast accuracy and their ex ante subjective assessments.