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

Kang,Byeongwoo: Rudi Bekkers
WP#22-06 Hitotsubashi University IIR （2022/11/07）

Historical accounts describe numerous cases of parallel invention. Nowadays, with over half a million inventions yearly that apply for patent protection at the USPTO alone, it is likely that there are a lot of parallel inventions among these. Yet, the mechanisms behind creating similar knowledge remain unstudied. From both a theoretica…

Language Barriers and the Speed of Knowledge Diffusion

Higham, Kyle: Sadao Nagaoka
22-E-074 RIETI Discussion Paper Series （2022/08/18）

The Economics of Spatial Mobility: Theory and Evidence Using Smartphone Data

Miyauchi, Yuhei： Kentaro Nakajima： Stephen J. Redding
No. 28497 NBER Working Paper （2022/04/01）

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）

On the Use of Satellite-Based Vehicle Flows Data to Assess Local Economic Activity: The Case of Philippine Cities

Go, Eugenia： Kentaro Nakajima： Yasuyuki Sawada： Kiyoshi Taniguchi
No. 652 ADB Economics Working Paper Series （2022/03/01）

Local Labor Market Effects of Chinese Imports and Offshoring: Evidence from Matched-Foreign Affiliate-Domestic Parent-Domestic Plant Data in Japan

Kiyota, Kozo： Kentaro Nakajima： Miho Takizawa
22-E-13 RIETI Discussion Paper Series （2022/03/01）

Patent citation generation at the triadic offices: Mechanisms and implications for analysis.

Higham, Kyle: Tohru Yoshioka-Kobayashi
4022851 SSRN Working Paper （2022/02/03）

Patent citations have been used for over four decades as indicators of numerous aspects of technological progress, including knowledge flows, technological evolution, and patent impact. However, research on these topics often ignores the variable contexts in which examiners, applicants, and third parties generate these citations, and t…

The Roles of Structured Management in the Formation of Transactional Relationship

Imani, Yusuke: Atsushi Ohyama
E-2021-07 TDB-CAREE Discussion Paper Series （2022/02/01）

Estimating the Impact of Land Use Regulation on Land Price: At the Kink Point of Building Height Limits in Fukuoka

Nakajima, Kentaro： Keisuke Takano
21-E-88 RIETI Discussion Paper Series　21-E-88 （2021/10/01）

Management Practices in Japan: Survey Evidence from Six Industries in JP MOPS

Kambayashi, Ryo: Atsushi Ohyama: Nobuko Hori
No. 57 New ESRI Working Paper Series （2021/04/01）

On the Economy of Machine and Intelligence: Differences and Analytics of Innovation

Kimura, Megumi
WP#21-01 Hitotsubashi University IIR （2021/01/06）

Detecting images of innovation expressed in the past, and analysing their variation and mutation, this paper tackled with cold cases of our learnings. Thanks to the deve…

Life of Designs: The Perfection of Co-Adaptation

Kimura, Megumi
WP#20-19 Hitotsubashi University IIR （2020/12/25）

Using open sources published in the past, and tracing learning histories of the world, this paper discovered “the third causes” of learnings. Actions and works of scient…

Giants and Angels: Innovation on the Lines

Kimura, Megumi
WP#20-18 Hitotsubashi University IIR （2020/12/25）

This paper organises relationships between giants and angels in innovation, or historical relationships between science and economy into a linear narrative form, clarify…

Creative Turn: Streaming Innovation

Kimura, Megumi
WP#20-17 Hitotsubashi University IIR （2020/12/25）

This paper presents essence and principles of economy and society, or secrets and keys for innovation in the age of machines and intelligence. The focus of this paper is…

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）

Patent Quality: Towards a Systematic Framework for Analysis and Measurement

Higham, Kyle W.: Gaétan de Rassenfosse: Adam B. Jaffe
No. 27598 NBER Working Paper （2020/09/29）

The 'quality' of novel technological innovations is extremely variable, and the ability to measure innovation quality is essential to sensible, evidence-based policy. Patents, an often vital precursor to a commercialised innovation, share this heterogeneous quality distribution. A pertinent question then arises: How should we define an…

National Origin Diversity and Innovation Performance

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

The Screening Function of International Search Authorities under the Patent Cooperation Treaty: Evidence from the Japanese Government’s Policy Change in 1999

Okada, Yoshimi
WP#20-13 Hitotsubashi University IIR （2020/07/31）

This article examines the screening function of the International Search authorities, which produce International Search Reports (ISRs) for international patent applicat…

Characteristics of Firms Transmitting Data across Borders: Evidence from Japanese Firm-level Data

Tomiura, Eiichi : Banri Ito : Byeongwoo Kang
20-E-048 RIETI Discussion Paper Series （2020/05/01）