nep-ipr New Economics Papers
on Intellectual Property Rights
Issue of 2007‒06‒30
eight papers chosen by
Roland Kirstein
Otto von Guericke University Magdeburg

  1. A Brief History of Space and Time: the Scope-Year Index as a Patent Value Indicator Based on Families and Renewals By Bruno Van Pottelsberghe; Nicolas van Zeebroeck
  2. Pre-empting Technology Competition Through Firm Acquisitions By Grimpe, Christoph; Hussinger, Katrin
  3. The Relationship among innovative Output, Productivity, and Profitability. A test comparing USPTO and EPO data By Enrico Santarelli; Francesca Lotti
  4. The Private Costs of Patent Litigation By James Bessen; Michael J. Meurer
  5. Capturing Nanotechnology's Current State of Development via Analysis of Patents By Masatsura Igami; Teruo Okazaki
  6. Shifting the Bias: How to Disentangle Creative Adoption from Radical Innovation. Empirical Evidence from Italy and the US By Antonelli Cristiano; Quatraro Francesco
  7. Market Effects of Generic Entry: The Role of Physicians and of Non-Bioequivalent Competitors By Gonzalez, Jorge; Sismeiro, Catarina; Dutta, Shantanu; Stern, Philip
  8. The Fundamental Theory of Knowledge By Khumalo, Bhekuzulu

  1. By: Bruno Van Pottelsberghe (Centre Emile Bernheim, Solvay Business School, Université Libre de Bruxelles, Brussels); Nicolas van Zeebroeck (Centre Emile Bernheim, Solvay Business School, Université Libre de Bruxelles, Brussels.)
    Abstract: The renewal of patents and their geographical scope for protection constitute two essential dimensions in a patent’s life, and probably the most frequently used patent value indicators. The intertwining of these dimensions (the geographical scope of protection may vary over time) makes their analysis complex, as any measure along one dimension requires an arbitrary choice on the second. This paper proposes a new indicator of patent value, the Scope-Year index, combining the two dimensions. The index is computed for patents filed at the EPO from 1980 to 1996 and validated in its member states. It shows that the average value of patent filings has increased in the early eighties but has constantly decreased from the mid-eighties until the mid nineties, despite the institutional expansion of the EPO. This result sheds a new and worrying light on the worldwide boom in patent filings.
    Keywords: Patent value, geographical scope, renewals, patent statistics, patent families.
    JEL: K1 L1 O34 O38
    Date: 2007–06
    URL: http://d.repec.org/n?u=RePEc:sol:wpaper:07-019&r=ipr
  2. By: Grimpe, Christoph; Hussinger, Katrin
    Abstract: This paper investigates the motive of pre-empting technology competition through mergers and acquisitions (M&A). Exploiting the patent application procedure at the European Patent Office we introduce a new measure for the possibility to create entry barriers in technology markets. Our results show significant evidence that firms engage in horizontal M&A to pre-empt competition in technology markets.
    Keywords: pre-empting technology competition, mergers and acquisitions
    JEL: G34 L20 O34
    Date: 2007
    URL: http://d.repec.org/n?u=RePEc:zbw:zewdip:5590&r=ipr
  3. By: Enrico Santarelli (University of Bologna, Department of Economics; ENCORE, Amsterdam; Max Planck Institute of Economics Jena, Entrepreneurship, Growth and Public Policy); Francesca Lotti (Bank of Italy, Economic Research Department)
    Abstract: The aim of this paper is to test whether patent-based indicators are still reliable measures of innovativeness in light of organizational changes in the field of Intellectual Property Rights (IPR) protection and the regulatory reforms already under way respectively at the U.S. Patent and Trademark Office (USPTO) and the European Patent Office (EPO). For most high-tech industries, patents represent an outcome of the production process and their number can be taken as a proxy for a firm's ability to improve its productivity growth and profitability. The case study reported here concerns the biotechnology industry in Italy, whose firms, by definition, have Intellectual Property (IP) activities in their portfolios. For this purpose, we use a unique data set which collects balance sheet items and patent information from EPO and USPTO. After linking firms' financial and production data with the patent information, we estimate a modified knowledge production function in which the dependent variable is alternatively (labor) productivity growth and profitability. Our findings show that only patents with the EPO, along with larger firm size, have a statistically significant relationship with productivity growth and profitability. This suggests that firms pursue different strategies when patenting with the USPTO and the EPO, and that this difference reflects statutory changes made to the former during the relevant period.
    Keywords: IP Protection, Productivity, Profitability, Italy
    JEL: L25 L65 O34
    Date: 2007–06–25
    URL: http://d.repec.org/n?u=RePEc:jrp:jrpwrp:2007-020&r=ipr
  4. By: James Bessen (Research on Innovation, Boston University School of Law); Michael J. Meurer
    Abstract: This paper estimates the total cost of patent litigation to alleged infringers. We use a large sample of stock market event studies around the date of lawsuit filings for US public firms from 1984-99. We find that the total costs of litigation are much greater than legal fees and costs are large even for lawsuits that settle. Lawsuits cost alleged infringers about $28.7 million ($92) in the mean and $2.9 million in the median. Moreover, infringement risk rose sharply during the late 1990s to over 14% of R&D spending. Small firms have lower risk relative to R&D.
    Date: 2007
    URL: http://d.repec.org/n?u=RePEc:roi:wpaper:0701&r=ipr
  5. By: Masatsura Igami; Teruo Okazaki
    Abstract: This analysis aims at capturing current inventive activities in nanotechnologies based on the analysis of patent applications to the European Patent Office (EPO). <P>Nanotechnologies : Etat des lieux dressé à partir d'une analyse des brevets <BR>L'analyse présentée a pour objet de mettre en évidence les activités d'invention conduites à l'heure actuelle dans le domaine des nanotechnologies à partir d'une analyse des demandes de brevets déposées auprès de l'Office européen des brevets (OEB).
    Date: 2007–05–23
    URL: http://d.repec.org/n?u=RePEc:oec:stiaaa:2007/4-en&r=ipr
  6. By: Antonelli Cristiano (University of Turin); Quatraro Francesco (University of Turin)
    Date: 2007–03
    URL: http://d.repec.org/n?u=RePEc:uto:labeco:200706&r=ipr
  7. By: Gonzalez, Jorge; Sismeiro, Catarina; Dutta, Shantanu; Stern, Philip
    Abstract: Patent expiration represents a turning point for the brand losing patent protection as bioequivalent generic versions of the drug quickly enter the market at reduced prices. In this paper, we study how physician characteristics and their prescribing decisions impact the competition among molecules of a therapeutic class, once generic versions of one of these molecules enter the market. Specifically, we study the evolution of the Selective Serotonine Reuptake Inhibitors (SSRIs) after the introduction of generic versions of fluoxetine (brand name Prozac) in the United Kingdom (UK). Our results suggest that, to fully understand the market evolution after generic entry, public health officials need to consider the marketing activities of pharmaceutical companies and determine how (1) individual physicians prescribe all competing drugs, and (2) respond to drug prices and marketing actions. For example, we find that a group of physicians sensitive to detailing switch from fluoxetine to non-bioequivalent branded alternatives after patent expiration, as Prozac significantly reduces its marketing support. Consequently, the market share of fluoxetine decreases despite being available at significant price discount under generic form, and despite the increase of prescriptions by price-sensitive physicians. Hence, governments interested in assessing generics diffusion should consider the prescribing across all competitors, whether or not bioequivalent, and determine the size of physician segments sensitive to pharmaceutical marketing activity and prices.
    JEL: I1 H51 C50 M31 C11
    Date: 2006–10
    URL: http://d.repec.org/n?u=RePEc:pra:mprapa:3717&r=ipr
  8. By: Khumalo, Bhekuzulu
    Abstract: This paper summarizes the theory of knowledge from the book of the same title by the same author. The paper begins by asking, and answering, what knowledge is. In searching for precise definitions it rids itself of the ambiguous term of infinity. The seven main laws of knowledge are laid out and discussed. The theory is an economic theory and as such must mention how people choose to seek knowledge. Knowledge is treated like any other commodity or product such as an apple, copper or a television set. Choices must be made in order to acquire knowledge. The tool used is the same tool used for analyzing other commodities - marginal utility analysis. The paper moves on to develop a working function of knowledge. This function helps to give a clear picture of how knowledge gains and loses occur within a society. The function leads to an understanding of critical levels of knowledge as well as the term obsolete knowledge. The paper introduces the term ‘negative’ knowledge and demonstrates how time is lost and gained within the context of knowledge. The sum of knowledge is the last major issue discussed in this paper and it can be considered the ‘signature’ of the theory. The concept that two plus two is not always four differentiates the commodity knowledge from other commodities and products. Finally the implications of this unique property of the commodity knowledge are discussed with the aim of demonstrating how the world would end up as a better place for all with food, shelter, and security for all.
    Keywords: Knowledge; time; mthetho; konke; critical level; negative knowledge; sum of knowledge
    JEL: O1 A10 D83
    Date: 2006–12–01
    URL: http://d.repec.org/n?u=RePEc:pra:mprapa:3733&r=ipr

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