What Are Interest Rates And Can They Be Artificially Low Or High?

Many economic commentators believe that interest rates in America and around the world are “artificially low”. Indeed, I too have used the term in the past to refer to the condition in Europe that saw interest rates across the member states converge to a uniformly low level at the introduction of the Euro, only to diverge and soar in the periphery during the ongoing crisis.

So what is an interest rate? An interest rate is the cost of money now. As Eugen von Böhm-Bawerk noted, interest rates result from people valuing money in the present more highly than money in the future. If a business is starting out, and has insufficient capital to carry out its plans it will seek investment, either through selling equity in the ownership of the business, or through credit from lenders. For a lender, an interest rate is their profit for giving up the spending power of their capital to another who desires it now, attached to the risk that the borrower will default.

In monetary economies, money tends to be distributed relatively scarcely. In a commodity-based monetary system, the level of scarcity is determined by the physical limits of how much of a commodity can be pulled out of the ground. In a fiat-based monetary system, there is no such natural scarcity, but money’s relative scarcity is controlled by the banking system and central bank that lends it into the economy. If money was distributed infinitely widely and freely, there would be no such thing as an interest rate as there would be no cost to obtaining money now, just as there is no cost to obtaining a widely-distributed and freely-available commodity like air (at least on the face of the Earth!). Without scarcity money would lose its usability as a currency, as there is no incentive to trade for a substance which is uniformly and effectively infinitely available to everyone. So an interest rate is not only the cost of money, but also a symptom of its scarcity (like RBCT and certain Austrians) seem to imply so. But why should it be the norm that prices are stable? In competitive markets — like modern day high-tech markets — the tendency may be toward deflation rather than stability, as improving technology lowers manufacturing costs, and firms lower prices to stay competitive with each other. Or in markets for scarce goods — like commodities of which there exists a limited quantity — the tendency may be toward inflation, as producers may have to spend more to extract difficult-to-extract resources form the ground. Ultimately, human action in market activity is unpredictable and determined by the subjective preferences of all market participants, and this applies as much to the market for money as it does for any market. There is no reason to believe that prices tend toward stability, and the empirical record shows a significant level of variation in price levels under both the gold standard and the modern fiat system.

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Ultimately, if interest rates are the cost of money, and in a fiat monetary system the quantity and availability of money is determined by lending institutions and the central bank, how can any interest rate not be artificial (i.e. an expression of the subjective opinions, forecasts and plans of those involved in determining the availability of credit and money including governments and central bankers)? Even under a commodity-money system, the availability of money is still determined by the lending system, as well as the miners who pull the monetary commodity or commodities out of the ground (and any legal tender laws that define money, for example monetising gold and demonetising silver).

And if all interest rates in contemporary markets are to some degree artificial this raises some difficult questions, because it means that the availability of capital, and thus the profitability (or unprofitability) of rentiers are effectively policy choices of the state (or indirectly the central bank).

Written By: John Aziz