In 1980, I had the privilege of advising Prime Minister Margaret Thatcher to ignore the demands of 360 British economists who made the outrageous claim that Britain would never (yes, never) recover from her decision to reduce government spending during a severe recession. They wanted more spending. She responded with a speech promising to stay with her tight budget. She kept a sustained focus on long-term problems. Expectations about the economy’s future improved, and the recovery soon began.