Ryan Avent
"More simply, services inflation is about expectations and unemployment, while goods inflation is about global capacity utilisation. That makes sense; to a first approximation services are people. Goods are also people, a little bit. But they are more energy, materials, and supply chains. Goods prices rise faster when one of those three factors bumps up against constraints. Service prices rise faster when there aren't enough people to go around.
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I like this way of digging into CPI data. But I also think it mostly reinforces the point that what monetary policy is really interested in is the labour-market output gap and its relation to wage growth. The prices for "stuff" don't matter, and we don't care if factories or stores close so long as everyone who wants to work can. The goods-services distinction is useful in that it shows us once again that on that basis the Fed has done far too little."
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