John Brian Taylor (born December 8, 1946, in New York City) is a prominent American economist renowned for his contributions to monetary policy, particularly for developing the Taylor Rule in 1993—a guideline for central banks to set interest rates based on inflation and economic output gaps that has influenced monetary policy worldwide. He earned a Bachelor of Arts in economics from Princeton University (1968) and a Ph.D. in economics from Stanford University (1973). Early in his career, Taylor held academic positions at Columbia University and the University of California before joining Stanford University in 1978, where he has served as the Mary and Robert Raymond Professor of Economics since 1980. He is also the George P. Shultz Senior Fellow in Economics at Stanford's Hoover Institution (a position held since 1996), focusing on research in international economics, macroeconomics, and public policy. His government service includes roles as a member of the President's Council of Economic Advisers under Ronald Reagan (1989–1991) and Under Secretary of the Treasury for International Affairs under George W. Bush (2001–2005), where he contributed to international financial stability and exchange rate policies. Taylor has advised multiple U.S. administrations and international organizations, authored numerous books and papers on economic stabilization and fiscal policy, and remains active in policy debates, advocating for rules-based monetary policy. He has testified before Congress and served on advisory boards, including the Congressional Budget Office's Panel of Economic Advisers, bridging academia and policymaking to address global economic challenges.