We study the causal impact of invalidating marginally valid patents during post-grant opposition at the European Patent Office on affected inventors' subsequent patenting. We exploit exogenous variation in invalidation by leveraging the participation of a patent's original examiner in the...

We document the occurrence of process claims in granted U.S. patents over the last century. Using novel data on the type of independent patent claims, we show an increase in the annual share of process claims of about 25 percentage points (from below 10% in 1920). This rise in process intensity...

In Barcelona, the European Union set ambitious targets for the European Research Area, calling for research expenditures equivalent to 3 % of Europe’s GDP by 2010. This paper analyses the implications of these targets, assesses the influence of the member states, and examines the role of the...

How does antitrust enforcement against patent-based monopolies affect innovation? I address this question by empirically studying the US antitrust case against Xerox, the monopolist in the market for plain-paper copiers. In 1975, Xerox was ordered to license all its copier-technology patents in...

Biotechnologies are a priority area of development due to the scope of global challenges and social problems they help to resolve. There is demand for updated information about the the current state of research and challenges faced. This paper discusses the potential of patent analysis and...

Skilled labor is a key input to the innovation process. A shortage in supply of skilled labor may hence impede innovation activities, resulting in lower productivity gains. While governments are concerned about these likely negative impacts, there is only limited empirical evidence whether and...

Services constitute a major part of the economy, and, contrary to popular believe, service firms do innovate. In this paper I take a closer look at one aspect of innovation in services: appropriability. I discuss the different elements that are possibly of importance for appropriability, and...

Studies on the adoption of innovations by companies generally include micro-level and meso-level variables in order to explain a company's receptiveness to innovations. This study adds to the literature by investigating the role of macro-level variables (i.e. national culture) to explain...

The knowledge spillover theory of entrepreneurship seeks to explain the fundamentals and consequences of entrepreneurship with respect to economic performance. This paper uses the knowledge spillover theory to explain different innovation outcomes. We hypothesize that a high rate of...

Innovation is an important area of management theory, but there is a paucity of research on innovation in project based firms. Project based firms are simultaneously becoming a more vital and important organisational context, exemplifying many current managerial challenges. In this paper we...