Economics of waste management and recycling was an early research interest of Professor Kazuhiro Ueta. This paper briefly summarizes his Economics of Recycling for Solid Waste Management [in Japanese] (Tokyo: Yuhikaku, 1992), which includes his studies, and discusses the progress in the past 25 years and future prospects in the field. Required future studies include (1) problems in solid waste management in developing countries and policies to address them, (2) policy instruments for waste management and recycling using theories of behavioral economics, and (3) evaluation of designed policies using field experimental methods in economics. This paper shows Professor Ueta's foresights and provides suggestions for future tasks in the field.