Patents and Cumulative Innovation:Causal Evidence from the Courts

Galasso, Alberto : Mark Schankerman
WP#13-16 Hitotsubashi University IIR （2013/08/20）

Cumulative innovation is central to economic growth. Do patent rights facilitate or impede such follow-on innovation? This paper studies the causal effect of removing patent protection through court invalidation on subsequent research related to the focal patent, as measured by later citations. We exploit random allocation of judges a…

Comparing the Productivity Impacts of Knowledge Spillovers from Network and Arm’s Length Industries:Findings from Business Groups in Korea

LEE, Keun : Kineung CHOO : Minho Yoon
WP#13-15 Hitotsubashi University IIR （2013/08/19）

Given the increasing significance of knowledge spillovers in innovation, this study investigates and compares knowledge spillovers from arm’s length firms in the industr…

Disguised Protectionism? Environmental policy in the Japanese car market

Kitano, Taiju
RIETI Discussion Paper 13-E-059 Research Institute of Economy, Trade and Industry (RIETI) （2013/06/30）

The US government criticized Japanese environmental policies, which promoted eco-friendly car (eco-car) purchases via measures such as tax exemptions and subsidies, as disguised forms of protection by arguing that the fuel economy standard for the subsidy qualification was designed to be more beneficial to domestic firms. This paper ex…

Reassessing patent propensity: evidence from a data-set of R&D awards 1977-2004

Fontana, Roberto: Alessandro Nuvolari: Hiroshi Shimizu: Andrea Vezzulli
Working Papers 2013/09, Department of Economics at the School of Economics and Management (ISEG), Technical University of Lisbon （2013/06/01）

Intermediary Functions and the Market for Innovation in Meiji and Taisho Japan

Nicholas, Tom: Hiroshi Shimizu
『Business History Review』 Vol.87 (Spring) pp.121-149 （2013/05/25）

Management of Science, Serendipity, and Research Performance: Evidence from Scientists' Survey

Murayama, Kota : Makoto Nirei : Hiroshi Shimizu
WP#13-13 Hitotsubashi University IIR （2013/05/13）

This study investigates the impact of management style on research performance in science. If a managerial role is played by a leading scientist in the research team, that is considered management-research integration. If not, we consider that management and research are separated. We found that separating the managerial and research r…

Does the outsourcing of prior art search increase the efficiency of patent examination?

Yamauchi, Isamu : Sadao Nagaoka
WP#13-12 Hitotsubashi University IIR （2013/05/07）

This paper investigates the effects of outsourcing of prior art search on the efficiency of patent examination, using a large scale Japanese patent examination data. Out…

The Tokyo Electric Power Company, Inc. and NGK Insulators, Ltd. : Inside Cooperative Innovation: Development and Commercialization of Sodium-Sulfur Batteries for Power Storage

Fukushima, Eishi
CASE#13-01 Hitotsubashi University IIR （2013/04/23）

This case study is the result of research undertaken for the Research Project on Okochi Prize Cases, which is being conducted with financial support from the Dynamics of…

High-Tech Entrepreneurship

Braguinsky, Serguey : Steven Klepper : Atsushi Ohyama
『Journal of Law and Economics』 （2013/04/01）

Wenzhou Entrepreneurs' Network Strategy and Community: Their Typology by Cluster Analysis

Nishiguchi, Toshihiro: Motoko Tsujita
WP#13-09 (in Japanese) Hitotsubashi University IIR （2013/03/29）

Integrating Personal Expertise: A History of Japanese Audit Firms, 1965–2010

KARUBE, Masaru : Hironori Fukukawa
WP#13-07 Hitotsubashi University IIR （2013/03/21）

To examine empirically the knowledge integration process of professional expertise that individuals have in a professional firm, this paper examines the emergence and g…

Personal Knowledge of Audit Partners and Organizational Knowledge of Audit Firms and the Impact on Audit Fees

Fukukawa、Hironori : Masaru Karube
WP#13-06 Hitotsubashi University IIR （2013/03/21）

This study develops a conceptual framework for auditor knowledge comprising both the personal knowledge of auditors and the organizational knowledge of audit firms. We u…

Audit Firm Switch and Engagement Partner Continuance

Fukukawa,Hironori : Masaru Karube
WP#13-05 Hitotsubashi University IIR （2013/03/21）

This study examines how audit fees change when companies switch audit firms. In particular, we are interested in the effect of engagement partners’ familiarity with clie…

Interaction-based Foundation of Aggregate Investment Shocks

Nirei, Makoto
WP#13-04 Hitotsubashi University IIR （2013/03/08）

This paper demonstrates that the interactions of rm-level indivisible investments give rise to aggregate uctuations without aggregate exogenous shocks. I develop a method to derive the distribution of the aggregate capital growth rate by embedding a ctitious tatonnement in a branching process. This method shows that idiosyncratic …

Contributions of young scholars in team-based scientific research

Igami,Masatsura : Sadao Nagaoka : John P. Walsh
WP#13-02 Hitotsubashi University IIR （2013/01/15）

How to design and manage a research team has become an increasingly important issue in knowledge creation in science. This paper aims to understand how young scholars contribute to scientific research in the context of a research team. We have found that the likelihood of the involvement of postdoctoral fellows is high in research team…

Effects of Government Funding on R&D Performance leading to Commercialization

Yaichi Aoshima: Kazunari Matsushima: Manabu Eto
『 International Journal of Environment and Sustainable Development』 Vol.12, No.1 （2013/01/01）

This paper draws on data obtained from a questionnaire survey conducted for the 242 private R&D projects supported by NEDO (New Energy and Industrial Technology Developm…

Possibilities of Geothermal Power Generation in Japan: Notes from an Iceland Field Study

Aoshima, Yaichi : Tomono Miki
WP#12-11 Hitotsubashi University IIR （2012/09/12）

Schumpeterian patterns of innovation and the sources of breakthrough inventions: evidence from a data-set of R&D awards

Fontana, Roberto: Alessandro Nuvolari: Hiroshi Shimizu: Andrea Vezzulli
『Journal of Evolutionary Economics』 Vol.22 No.4 pp. 785-810 （2012/09/01）

This paper examines the relationship between Schumpeterian patterns of innovation and the generation of breakthrough inventions. Our data source for breakthrough inven…

Schumpeterian Patterns of Innovation and the Sources of Breakthrough Inventions: Evidence from a Data-Set of R&D Awards

Fontana, Roberto: Alessandro Nuvolari: Hiroshi Shimizu: Andrea Vezzulli
Working Papers 2012/24, Department of Economics at the School of Economics and Management (ISEG), Technical University of Lisbon （2012/08/01）

Study of the Management for Successful R&D Projects Supported by Public Funds

Yamazaki Akira: Kazunari Matsushima: Kenichiro Mizuno
WP#12-09 Hitotsubashi University IIR （2012/07/31）

There are various factors associated with success or failure of R&D projects, such as maturity of the technology, circumstances surrounding R&D systems within companies and environments for commercialization of R&D projects. For R&D projects supported by public funds in particular, it has been difficult to clarify what makes R&D projec…