Paul Krugman is credited with coining the term immaculate disinflation, whereby he predicted that it is possible in the U.S. today to see a fast drop in inflation without an accompanying large increase in unemployment. If true (based on assumptions about the pandemic producing unusual economic behavior that is now getting quickly corrected), this would be a notable exception to a basic principle from economics that a. The only way to cool down an economy is to use substantial increases in interest rates to motivate people to save more, invest less, and spend less, which in turn causes a spike in job losses. b. The only way to cool down an economy is to raise the productivity growth rate