Contributor(s): Dr Peter Orszag | Spiralling health care costs are currently threatening the future of the US economy. Peter Orszag offers insight on possible approaches to reduce health care costs over time without impairing the quality of medical care or outcomes. LSE alumnus Peter Orszag (MSc, PhD Economics, 1992, 1997) is vice chairman of Global Banking at CitiGroup. He recently served as director of the Office of Management and Budget under president Barack Obama.