Whatever Happened to the Invisible Hand of Capitalism?

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When I was growing up in the Soviet Union, our local grocery store had two types of sugar: The cheap one was priced at 96 kopecks (Russian cents) a kilo and the expensive one at 104 kopecks. I vividly remember these prices because they didn’t change for a decade. The prices were not set by sugar supply and demand but were determined by a well-meaning bureaucrat (who may even have been an economist) a thousand miles away. If all Russian housewives (and househusbands) had decided to go on an apple pie diet and started baking pies for breakfast, lunch and dinner, sugar demand would have increased but the prices still would have been 96 and 104 kopecks. As a result, we would have had a shortage of sugar — a very common occurrence in the Soviet era.

In a capitalist economy, the invisible hand serves a very important but underappreciated role: It is a signaling mechanism that helps balance supply and demand. High demand leads to higher prices, telegraphing suppliers that they’ll make more money if they produce extra goods. Additional supply lowers prices, bringing them to a new equilibrium. I am slightly embarrassed as I write this, because you may confuse me for an economist — I am not one. But this is how prices are set for millions of goods globally on a daily basis in free-market economies.

In the command-and-control economy of the Soviet Union, the prices of goods often had little to do with supply and demand but were instead typically used as a political tool. This in part is why the Soviet economy failed — to make good decisions you need good data, and if price carries no data, it is hard to make good business decisions.

When I left Soviet Russia in 1991, I thought I would never see a command-and-control economy again. I was wrong. Over the past decade our global economy has started to resemble one, as the well-meaning economists running central banks have been setting the price for the most important commodity in the world: money. Interest rates are the price of money, and the daily decisions of billions of people and their corporations and governments should determine them. Like the price of sugar in Soviet Russia, interest rates today have little to do with supply and demand (and thus have zero signaling value).