Using firm level data from the Irish Community Innovation Survey 2008–2010 we analyse the importance of eight skill sets for the innovation performance of firms. We distinguish between radical and incremental innovation. Our results suggest that there is substantial heterogeneity in the...

This paper demonstrates that jointly modeling serial and spatial error correlation results in a trade-off between the serial and spatial autocorrelation coefficients. Ignoring this trade-off causes inefficiency and may lead to nonstationarity.