Before revision:  Out-of-sample, on average, we obtain R^2 values for the Mincer-Zarnowitz regression of around 2-3\% and an RMSPE that is 10 times lower than values documented in the literature.
After revision:  On average, we obtain R^2 values for the Mincer-Zarnowitz regression of around 2-3\% and an RMSPE that is 10 times lower than values documented in the literature.