Jeffrey MacIntosh is a full Professor of Law at the University of Toronto Faculty of Law. In 1988-89 he was a John M. Olin Fellow in Law and Economics at Yale Law School. He is a former Associate Director and Director of the Capital Markets Institute at the University of Toronto. In 1999 he served as a member of the Ontario Securities Commission Task Force on Small Business Financing. From 1999 to 2020 he was the Toronto Stock Exchange Professor of Capital Markets at the Faculty of Law.