Previous empirical literature has shown that technological change can be considered the main cause of the skill bias (increase in the number of highly skilled workers) exhibited by manufacturing employment in developed countries over the last decades. However, recent papers have also introduced...

Previous empirical literature - mainly cross-sectional - has tested the demand-pull hypothesis and found that overall, evidence does not conflict with the idea that innovation may be driven by output. Using a balanced panel of 216 Italian manufacturing firms over the 1995-2000 period, and...