A major policy concern regarding patenting activity is related to the actual enforceability of the patents granted by Patent Offices. The risk of facing elevated legal costs to defend patent rights can affect ex-ante incentives to invest in R&D. This paper analyses whether the availability of...

Earlier research using the directed technical change framework argues that with the right mix of policies, governments can steer firms' R&D efforts away from harmful technologies toward supposedly cleaner alternatives. This article puts that assumption to the test by examining the impact of the...

This paper analyzes the patenting decision of a successful inventor in a model of dynamic technology adoption with asymmetric firms. We show that the extent of the inventor's technological headstart is decisive for his patenting behavior. The overall patenting effect consists of two parts, a...

It is shown that spillovers can enhance private returns to innovation if they feedback into the dynamic research of the original inventor (Internalized spillovers), butwill always reduce private returns, if the original inventor does not benefit fromthe advancements other inventors build into...

We estimate the relative contribution of mobile scientists who leave academia for the privatesector on the subsequent innovative performance of the firms they join. We use data on thepopulation of Danish firms and their R&D workers for the period 1999-2004 and measureinnovation performance by...

This study shows for a large sample of R&D-active manufacturing firms that collaborative R&D has a positive effect on firms' patenting in terms of both quantity and quality. When distinguishing between alliances that aim at joint creation of new knowledge and alliances that aim at exchange of...

This paper provides new evidence on the objectives and determinants of different typesof innovations and patents, environmental as opposed to other innovations and patents,and different variants of environmental innovations and patents. We investigate howfirm-specific and sector-specific driving...

The development of climate-friendly technologies and its diffusion across countries is of key importance to slow climate change. This paper considers technologies in the mobile air-conditioning (MAC) sector which is a major contributor of fluorinatedgreenhouse gas emissions. Using patents as an...

This paper uses a gravity framework to investigate the effects of distance as well as subnational and national borders in knowledge spillovers. Drawing on the NBER Patent Citations Database, we examine patent citations data at metropolitan level within the U.S. and the 38 largest patent-cited...