Funding for this research was provided by:
Freeman Spogli Institute for International Studies, Stanford University
University of Toronto
Article History
Received: 21 April 2020
Accepted: 18 January 2021
First Online: 22 March 2021
Competing interests
: The authors declare no competing interests for this study. RK and MYY have disseminated the research results to academic audiences, government officers, foundations, and media outlets. RK and MSM have complied with the conflict of interest disclosure requirements at their respective academic institutions. RK and MYY are co-founders of SKY Labo, a non-profit organization based in Tokyo, Japan. Currently, no financial conflict of interest has been identified since the authors do not earn any income from this organization.