・Process and mechanism of branding native or traditional varieties of agricultural prducts
・geographical or spatial conditions of breeding and change of varieties
・Geography of knowledge,evolutionary approach and new methodology of agricultural economic geography in knowledge society
◆Kobayashi, Hajime (2017.8) Prosperity and decline of strawberry production districts: a special focus on variety development and diffusion. KCJ-0167, The oral session in the 12th Korea-China-Japan Joint Conference on Geography and the 3rd Asian Conference on Geography, Jeju National University, Jeju, Republic of Korea, August 25th, 2017.
◆Kobayashi, Hajime (2018.7) Acquiring and Maintaining A Regional Advantage in Agriculture: Focusing on Innovation and Shipment Strategy in Japanese Soybean and Strawberry Production Districts. in the 5th Global Conference on Economic Geography, University of Cologne, Cologne, Germany, July 26th, 2018.
◆Kobayashi, Hajime（2019.10.）The Revival of Ideas: The impact of knowledge circulation on economic geography. Oa-77, The oral session in the 14th Japan-Korea-China Joint Conference on Geography, Okayama University(Tsushima campus), Okayama, Japan, October 23th, 2019.
Kobayashi, Hajime（2021.11.）Other Developmental Paths for Realizing “Smart” Agro-food Systems? Focusing on Cases in Japanese Cities and Rural Areas. in the 1st Conference on Asian Inclusive Smart City in the Post Covid 19 Arena, Online Session, November 25th, 2021.
◆Kobayashi, Hajime (2016.9) Innovations in Commercialization of Traditional Agricultural Products: Cases from Native Varieties of Eggplant and Black Soybean. The poster session in the 11th Japan-Korea-China Joint Conference on Geography and the 2nd Asian Conference on Geography, New Otani Inn Sapporo, Hokkaido, Japan, September 12th and 13th, 2016.