1.4. Credibility of models

Yoichi Kaya

Energy, 1990, vol. 15, issue 3, 163-170

Abstract: The paper presents a study on model credibility, which was completed in Japan. More than 10 economywide models were selected and GNP results compared. The economists found that the model with the smallest prediction error was a very simple model: a linear extrapolation of the trend in the previous year. In other words the hypothesis that the GNP growth rate during a year is the same as the rate during the previous year proved to be an accurate forecast. Undoubtedly not only modelers but those who are not familiar with modeling methodology would be surprised.

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:15:y:1990:i:3:p:163-170

DOI: 10.1016/0360-5442(90)90080-L

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