C. Scott Clark is president of C. S. Clark Consulting, adjunct professor in the Department of Economics at Carleton University, and previously held senior positions in the Government of Canada, dealing with both domestic and international policy issues.

On domestic issues, Scott served as associate deputy minister of finance from 1994 to 1997, deputy minister of finance from 1997 to 2000 and senior adviser to the prime minister in 2001. On international policy issues, he was Canada's executive director to the International Monetary Fund (IMF) (1989–1992), Canada's G7 deputy (1992–1994), and Canada's executive director to the European Bank for Reconstruction and Development (EBRD) (2001­–2006). At the EBRD, he served on the Budget Committee and was also chair of the Audit Committee. As deputy minister of finance, Scott served as an ex-officio member on the board of directors of the Bank of Canada and Export Development Canada. He was also adviser to the Independent Evaluation Office of the IMF from 2007­ to 2009. From 2008 to 2010, he served as adviser to the Asian Development Bank with regard to governance issues. He is also a former director of the Queen's University Institute for Energy and Environmental Policy.

Scott is a frequent commentator on public policy issues on BNN, CBC, CTV and in The Globe and Mail and Toronto Star. He also comments regularly on domestic and international policy issues on his blog www.3dpolicy.ca.