One of the hardest things for many people to grasp during the Great Recession has been the idea that inflation is too low. We generally talk about inflation as pure economic evil, something that could never possibly be too low. But it is.
If you say inflation is too low, some people will bring up the high inflation of the 1970s or, more hysterically, the hyper-inflation in Weimar Germany during the rise of the Nazis as proof that Inflation Is Bad. But that doesn't really make sense. Inflation is bad when it gets too high, but that doesn't make a modest amount of inflation bad. The sun is bad in Death Valley when it's 130 degrees, but that doesn't make sunshine a universal menace. 15% inflation would be a very bad thing, but that doesn't mean 1.5% inflation is a good thing. 130 degrees Fahrenheit is murderous, but so 13 degrees is also a killer. A lot of our public debate about inflation is like trying to treat a case of frostbite while people keep shouting that heat is a terrible thing and then angrily tell you a long story about forest fires.