Abstract:The problem of the extraction of the relevant information for prediction purposes -in a Big Data time series context -is tackled. This issue is especially crucial when the forecasting activity involves macroeconomic time series, i.e. when one is mostly interested in finding leading variables and, at the same time, avoiding overfitted model structures. Unfortunately, the use of big data can cause dangerous overparametrization phenomena in the entertained models. In addition, two other drawbacks should be consid… Show more
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