We identify an inflationary technology news shock as the leading source of business cycle variations for the postwar U ….S. economy. This shock acts like a demand shock: it induces strong positive comovement in real quantities - GDP, consumption … technological innovations reduce inflation. The technology news shock became the predominant source of the business cycle from the …

find that (i) the US economy is well described by a number of structural shocks between two and five. Focusing on the four-shock …

-lasting effects on output and total factor productivity (TFP). In this paper, I argue that the typical monetary shock has been … confounded with the news shock about future technology. I propose and implement a novel SVAR approach that effectively ``cleans …'' the technology component from the traditional Cholesky monetary shock. With the new identification, I find that a monetary …