Ian is credited with bringing the craft of political risk to financial markets, creating Wall Street’s first global political risk index (GPRI), and for establishing political risk as an academic discipline. His definition of emerging markets— “those countries where politics matters at least as much as economics for market outcomes”—has become an industry standard. “G-Zero,” his term for a global power vacuum in which no country is willing and able to set the international agenda, is widely used by policymakers and thought leaders.