This will be a brief but hopefully helpful column. For some time, I have been explaining that the new Fed operating framework for monetary policy, in which the FOMC essentially steers interest rates higher by fiat rather than in the traditional method (by managing the supply of funds and therefore the resulting pressure on reserves), is a really bad idea. But in responding to a reader’s post I inadvertently hit on an explanation that may be clearer for some people than my analogy of a doctor manipulating his thermometer to give the right reading from the patient.

Right now, there is a tremendous surplus of reserves above what banks are required to hold or desire to hold. With free markets, this would result in a Fed funds interest rate of zero, or even lower under some circumstances, with a substantial remaining surplus. In this case, the Fed funds effective rate has tended to be in the 10-20bps range since the Fed started paying interest on excess reserves (IOER).

So what happens when there is a floor price established above the market-clearing price? Economics 101 tells us that this results in surplus, with less exchange and higher prices than at equilibrium. Consider a farm-price support program where the government establishes a minimum price for cheese (as it has, actually, in the past). If that price is below the natural market-clearing price, then the floor has no effect. But if the price is above the natural market-clearing price, as in the chart below where the minimum cheese price is set at a, then in the market we will see a quantity of cheese traded equal to b, at a price of a.

cheese

But what also happens is that producers respond to the higher price by producing more cheese, which is why the supply curve has the shape it does. In order to keep this excess cheese from pushing market prices lower, the government ends up buying c-b cheese at some expense that ends up being a transfer from government to farmers. It can amount to a lot of cheese. This is the legacy of farm price supports: vast warehouses of products that the government owns but cannot distribute, because to distribute them would push prices lower. So the government ends up distributing them to people who wouldn’t otherwise buy cheese, at a zero price. And eventually, we get the Wikipedia entry “government cheese.”GovermentCheese

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