Inflation and interest rates reached their highest levels since World War II as the administration freed domestic oil prices in response to rising prices from OPEC. The Misery Index, Carter's own invention of economic well-being, rose 50% in four years. | Inflation and interest rates reached their highest levels since World War II as the administration freed domestic oil prices in response to rising prices from OPEC. The Misery Index, Carter's own invention of economic well-being, rose 50% in four years. |