@TechReport{iza:izadps:dp4301,
            	author={Pellegrino, Gabriele and Piva, Mariacristina and Vivarelli, Marco},
            	title={How Do Young Innovative Companies Innovate?},
            	year={2009},
	month={Jul},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={4301},
            	url={https://www.iza.org/index.php/publications/dp4301},
	abstract={This paper discusses the determinants of product innovation in young innovative companies (YICs) by looking at in-house and external R&D and at the acquisition of external technology in embodied and disembodied components. These input-output relationships are tested on a sample of innovative Italian firms. A sample-selection approach is applied. Results show that in-house R&D is linked to the propensity to introduce product innovation both in mature firms and YICs; however, innovation intensity in the YICs is mainly dependent on embodied technical change from external sources, while − in contrast with the incumbent firms − in-house R&D does not play a significant role.},
	keywords={R&D;product innovation;embodied technical change;CIS 3;sample selection},
            }