Monthly data on the U.S. Industrial Production index (IP, index 2012=100, seasonally adjusted) collected from the
Federal Reserve Economic Data (FRED) archive. The IP has been used as MIDAS term in different contributions
(see, for instance, engle_ghysels_sohn_2013;textualrumidas, conrad_lock_2015;textualrumidas, and
amendola_candila_scognamillo_2017;textualrumidas).