Charles Yuji Horioka (born September 7, 1956, in Boston, Massachusetts) is a Japanese-American economist residing in Japan.
Previously, he taught at Stanford, Columbia, Kyoto, and Osaka Universities and the University of the Philippines, Diliman, where he was Vea Family Professor of Technology and Evolutionary Economics Centennial.
In his article with Martin Feldstein, "Domestic Saving and International Capital Flows", published in the Economic Journal in 1980, Horioka documented a positive correlation between long-term savings and investment rates across countries.
This result has come to be known as the Feldstein–Horioka puzzle or paradox and the article is one of the most cited in international finance.
His specialties are macroeconomics, household and family economics, the Japanese economy, and the Asian economies, and he has written numerous scholarly articles on consumption, saving, and bequest behavior and parent-child relations in Japan, the United States, China, India, Korea, and Asia more generally.