How do non-practicing entities (“Patent Trolls”) impact innovation and technological progress? We employ unprecedented … access to NPE-derived patent and financial data and a novel model to answer this question. We find that NPEs tend to acquire … innovation drops when patents are acquired by NPEs. Quantitatively, the overall impact of NPEs depends on the share of …

Patent citations often proxy for the value of innovation, and the very need for a proxy demonstrates the difficulty of … productive patents produced by entrepreneurs to extend knowledge and strategic patents produced by incumbents to protect market …

innovation literature. Using an NPE-derived dataset with patent-specific revenues we find that the relationship of citations to … behind it. We attempt to explain this relationship with a simple model of innovation, allowing for both productive and … findings have important implications for our basic understanding of growth, innovation, and intellectual property policy. …

How do non-practicing entities ("Patent Trolls") impact innovation and technological progress? Although this question …", who exploit the patent system to extract rents and thereby hurt innovation. We employ unprecedented access to NPE …-derived patent and financial data, as well as a novel model that guides our data analysis. We find that NPEs acquire patents from …

How do non-practicing entities ("Patent Trolls") impact innovation and technological progress? Although this question …", who exploit the patent system to extract rents and thereby hurt innovation. We employ unprecedented access to NPE …-derived patent and financial data, as well as a novel model that guides our data analysis. We find that NPEs acquire patents from …

questions. The economy consists of many industries and firms engaged in cumulative (step-by-step) innovation. IPR policy … past innovations. With full patent protection, followers can catch up to the leader in their industry either by making the … same innovation(s) themselves or by making some pre-specified payments to the technological leaders. We prove the existence …

How do political connections affect firm dynamics, innovation, and creative destruction? To answer this question, we … build a firm dynamics model, where we allow firms to invest in innovation and/or political connection to advance their …, where we merge: (i) firm-level balance sheet data; (ii) social security data on the universe of workers; (iii) patent data …

Do political connections affect firm dynamics, innovation, and creative destruction? We study Italian firms and their …: (i) firm-level balance sheet data; (ii) social security data on the universe of workers; (iii) patent data from the … European Patent Office; (iv) the national registry of local politicians; and (v) detailed data on local elections in Italy. We …

How do political connections affect firm dynamics, innovation, and creative destruction? We extend a Schumpeterian … how political connections influence an economy's business dynamism and innovation, and generate a number of implications …, workers, and politicians, supplemented by corporate financial statements, patent and election data, so as to define connected …