product diversification and the stability of sales and employment. We find that contrary to portfolio theoretic considerations … more diversified firms exhibit a higher variability of sales and employment. However, the effects are negligibly small from … an economics point of view. -- Product diversification ; stability ; variability ; Germany …

the effects of different types of innovation on four measures of firm performance, viz. sales, labor productivity … show positive effects on sales, labor productivity and employment; the effects on exports are less clear. …