The determinants of parallel invention: Measuring the role of information sharing and personal interaction between inventors

Kang, Byeongwoo:Rudi Bekkers:Atsushi Ohyama
『Research Policy』 Vol. 53 Issue 10 pp. 1-16 （2024/12/01）

There is abundant evidence that individuals create similar ideas independently at about the same time. While this phenomenon has often been documented, its underlying mechanisms have been understudied empirically. This study investigates two of such mechanisms implied by the theoretical work of Amabile (1983, 1988), Nonaka (1994), and …

The Role of Face-to-face Contact in Innovation: The Evidence from the Spanish Flu Pandemic in Japan

Inoue, Hiroyasu： Kentaro Nakajima： Tetsuji Okazaki： Yukiko Umeno Saito
22-E-026 RIETI Discussion Paper Series （2022/03/01）

Product Innovation, Product Diversification and Firm Growth: Evidence from Japan's Early Industrialization

Braginsky, Serguey: Atsushi Ohyama: Tetsuji Okazakii: Chad Syverson
『American Economic Review』 Vol. 111 No. 12 pp. 3795-3826 （2021/12/01）

Local Industry Influence on Commercialization of University Research by University Startups

Kang, Byeongwoo : Kazuyuki Motohashi
20-E-086 RIETI Discussion Paper Series （2020/11/01）

A Validation Study of Knowledge Combinatorial Novelty

Matumoto, Kuniko : Sotaro Shibayama : Byeongwoo Kang : Masatsura Igami
No. 190 NISTEP Discussion Paper （2020/11/01）

National Origin Diversity and Innovation Performance

Kang, Byeongwoo : Kaoru Nabeshima
2020-E-2 WIAPS Discussion Paper Series （2020/09/01）

Revisiting incremental product innovations in the food manufacturing industry: An empirical study on the effect of intellectual property rights

Yoshioka-Kobayashi, Tohru: Tomofumi Miyanoshita: Daisuke Kanama
『Journal of Economic Structures』 （2020/04/20）

The highly competitive and mature food industry has long been process innovation-oriented while largely neglecting product/technological innovation. However, recent innovation debates have raised two issues. First, imitations of product innovations likely underestimate the value of innovation in this industry; second, exaggerations of …

Academic contribution to industrial innovation by funding type

Kang, Byeongwoo: Kazuyuki Motohashi
『Scientometrics』 Vol. 124 No. 1 pp. 169-193 （2020/03/23）

Universities are an important actor for innovation. Their contributions to technological and scientific knowledge development have been supported by various types of fu…

Product Innovation, Product Diversification and Firm Growth: Evidence from Japan's Early Industrialization

Braguinsy, Serguy : Atsushi Ohyama : Tetsuji Okazaki : Chad Syverson
No. 26665 NBER Working Paper （2020/01/01）

The Impacts of Export Competition on International Technology Flows

Nabeshima, Kaoru : Mila Kashcheeva : Byeongwoo Kang
『Applied Economics Letters』 pp. 1-4 （2017/10/25）

Knowledge flow is a key to building technological capabilities. This article investigates how competition in international trade affects knowledge flow between countries…

The Impact of Import vs. Export Competition in Technology Flows between Countries

Kaoru, Nabeshima : Mila Kashcheeva : Byeongwoo Kang
No. 654 IDE Discussion Papers （2017/04/01）

Many countries are interested in strengthening their technological capabilities to achieve high growth rates. Knowledge flow is a key to build technological capabilities…

Analysing R&D in the Japanese Construction Industry

Konno, Yukiko
WP#16-06 Hitotsubashi University IIR （2016/04/08）

This study examines the reasons for research and development (R&D) inactivity in the Japan’s construction industry. It focuses on the impact of Japan’s public works bid…

A Cost Benefit Analysis of AminoIndex™ Cancer Screening in Japan

Tamura, Masaoki : Akira Imaizumi : Takahiko Muramatsu : Nobuhisa Shimba
WP#15-14 Hitotsubashi University IIR （2015/08/03）

This article presents a cost benefit analysis of AminoIndexTM Cancer Screening (AICS) in Japan. AICS is a new cancer diagnosis method based on profiles of amino acids. The cost benefit analysis is performed on each type of cancer, each sex, and each age class. The results indicate that AICS is cost-beneficial mainly for 50-75 years old…

Management of science, serendipity, and research performance: Evidence from a survey of scientists in Japan and the U.S.

Murayama, Kota: Makoto Nirei: Hiroshi Shimizu
『Research Policy』 Vol.44 No.4 pp.862-873 （2015/05/01）

In science, research teams are increasing in size, which suggests that science is becoming more organisational. This paper aims to empirically investigate the effects of the division of labour in management and science on serendipity, which has been considered one of the great factors in science. Specifically, in examining the survey o…

Author ordering in scientific research: evidence from scientists survey in the US and Japan

Nagaoka, Sadao : Hideo Owan
WP#13-23 Hitotsubashi University IIR （2014/02/28）

This paper examines what drives author ordering in scientific research. We first discuss a theoretical framework for the choice between alphabetical ordering and relativ…

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…

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…

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…

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）