We propose a novel model of knowledge discovery shedding light on the emergence of General Purpose Technologies (GPTs), the process which has been largely neglected in the literature on technological change. We demonstrate that GPTs emerge only when certain conditions with regard to the...

This article investigates the role of technology, education and wages in shaping the skill structure of employment considering the upswings and downswings of business cycles. We develop an econometric estimation of these relationships and carry out an empirical test at the industry level for...