I no longer agree with mainstream economists that deflation is bad

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The fear of deflation serves as The theoretical justification of every inflationary action taken by the Federal Reserve and central banks around the world. It is why the Federal Reserve targets a price inflation rate of 2 percent, and not 0 percent. It is in large part why the Federal Reserve has more than quadrupled the money supply since August 2008. And it is, remarkably, a great myth, for there is nothing inherently dangerous or damaging about deflation.

Deflation is feared not only by the followers of Milton Friedman (those from the so-called Monetarist or Chicago School of economics), but by Keynesian economists as well. Leading Keynesian Paul Krugman, in a 2010 New York Times article titled “Why Deflation is Bad,” cited deflation as the cause of falling aggregate demand since “when people expect falling prices, they become less willing to spend, and in particular less willing to borrow.”1

Presumably, he believes this delay in spending lasts in perpetuity. But we know from experience that, even in the face of falling prices, individuals and businesses will still, at some point, purchase the good or service in question. Consumption cannot be forever forgone. We see this every day in the computer/electronics industry: the value of using an iPhone over the next six months is worth more than the savings in delaying its purchase.

Another common argument in the defamation of deflation concerns profits. With falling prices, how can businesses earn any as profit margins are squeezed? But profit margins by definition result from both sale prices and costs. If costs — which are after all prices themselves — also fall by the same magnitude (and there is no reason why they would not), profits are unaffected.

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In addition, the American economic experience during the nineteenth century is even more telling.
Twice, while experiencing sustained and significant economic growth, the American economy “endured” deflationary periods of 50 percent.

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