Skills shortage has become a key policy issue in highly developed and innovation-oriented economies, with non-negligible consequences on firms' innovation activities. We investigate the effect of skills shortage on firms' innovation openness, which is considered to be one of the key drivers of...

The US skill premium and college enrollment have increased substantially over the past few decades. In addition, while low-wage earners worked more than highwage earners in 1970, the opposite was true in 2000. We show that a parsimonious neoclassical model featuring skill-biased technical...