高等研究所セミナーシリーズ“地球制約下の経済・技術・社会の文理融合型実証研究” Interdisciplinary Empirical Research on Economy, Technology, and Society under Planetary Constraints
WIAS RIEEM Seminar（6/10）
主 旨 / Abstract
①“Empirical Analyses of Firms’ Strategic Decisions: Durability and Electricity Markets”
Takeshi FUKASAWA (Assistant Professor, WIAS, Waseda University)
Abstract:
Firms’ strategies, such as pricing and product introduction decisions, affect both economic activity and the environment. In this sense, a deeper understanding of firms’ strategic behavior is essential for designing effective environmental policies. This presentation introduces two empirical studies on durability and electricity markets, building on and extending empirical methods developed in the Industrial Organization literature in economics.
The first study investigates firms’ incentives to sell high-durability products and the associated welfare implications. While higher durability may reduce future replacement demand and firms’ profits, it has recently attracted increasing attention from the perspective of the circular economy. The study develops a dynamic structural model of forward-looking firms and consumers to provide an empirical framework for analyzing durability choices and their welfare implications, using the light bulb market as an empirical application.
The second study examines the strategic behavior of power generating firms in wholesale electricity markets, particularly in relation to fuel prices and market power. The study develops a novel identification and estimation method for thermal power plants’ marginal costs and markups without imposing assumptions on firms’ exercise of market power. The empirical analysis finds evidence of non-negligible markups and incomplete, firm-specific pass-through of LNG fuel prices into marginal costs. The firm-specific nature of fuel price pass-through suggests incomplete arbitrage in fuel transactions, and the study further discusses its potential causes and consequences, including inefficient operation of thermal generation units.
② “TBA”
Dr. Milan Scasny (Charles University, Prague)
プログラム / Program
司会 / Moderator
近藤 康之 / Yasushi Kondo (早稲田大学 教授 / Professor, Waseda University)
① “Empirical Analyses of Firms’ Strategic Decisions: Durability and Electricity Markets”
Takeshi FUKASAWA (Waseda University WIAS, Assistant Professor)
② “TBA”
Dr. Milan Scasny (Charles University, Prague)
登壇者 / Speakers
Takeshi FUKASAWA (Assistant Professor, WIAS, Waseda University)
Takeshi Fukasawa is an Assistant Professor at the Waseda Institute for Advanced Study (WIAS), Waseda University. He earned his Bachelor of Science in 2019 and a Ph.D. in Economics in 2024, both from the University of Tokyo. His research focuses on industrial organization and related fields, with particular interests in durability, energy efficiency, and dynamic demand. He also studies computationally efficient numerical methods for solving models and estimating parameters.
Dr. Milan Scasny (Charles University, Prague)
Senior Research Fellow & Head of Environmental Economics & Sociology Group, Charles University Environment Center / Lecturer, Charles University, Institute of Economic Studies at Faculty of Social Sciences / Researcher, University of Warsaw, Faculty of Economic Sciences, Warsaw, Poland
日 時 / Date&Time
2026年6月10日（水）17:00～19:00 / June 10, 2026 (Wed.) 17:00 – 19:00
会場 / Venue
ハイブリッド開催
早稲田キャンパス3号館2階210教室 / Room 210, 2nd Floor, Building 3, Waseda Campus, Waseda University
対 象 / Prospected Audience
学部生、大学院生、教員、研究者、一般
Students, Graduate students, Faculty members, Research members, General participants
言 語 / Language
英語 / English
主 催 / Organizer
早稲田大学 高等研究所 / Waseda Institute for Advanced Study (WIAS)
共 催 / Co-Organizer
早稲田大学 環境経済・経営研究所 / Research Institute for Environmental Economics and Management
早稲田大学 現代政治経済研究センターCCS普及政策研究部会 / WINPEC (Waseda Institute of Political Economy) Economics of CCS
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