David Hendry has made major contributions to many areas of economic forecasting. He has developed a taxonomy of forecast errors and a theory of unpredictability that have yielded valuable insights into the nature of forecasting. He has also provided new perspectives on many existing forecast...

In “Excessive Ambitions," Jon Elster criticizes a wide range of social science aspirations to understand a complicated and evolving reality. Some of his analysis is to the point, but some is flawed, as explained in my comments. Crucially, however, his conclusions on empirical modeling are...

Recently, single equation approaches for estimating structural models have become popular in the monetary economics literature. In particular, single-equation Generalized Method Moments estimators have been used for estimating forward-looking models with rational expectations. Two important...