aCEIS & Dipartimento SEFEMEQ, Università di Roma “Tor Vergata”, Roma, Italy;bDipartimento SEGES, Università del Molise, Campobasso, Italy
Abstract:
It is shown that time-series of US productivity and hours are apparently affected by a structural break in the late 60s. Moreover, the importance of technology shocks over the business cycle has sharply decreased after the break.