Magnus, Jan R.; Danilov, Dmitry - In: Journal of Forecasting 23 (2004) 4, pp. 251-274
In econometrics, as a rule, the same data set is used to select the model and, conditional on the selected model, to forecast. However, one typically reports the properties of the (conditional) forecast, ignoring the fact that its properties are affected by the model selection (pretesting). This...