Wednesday, August 31, 2011

Bananas and Broken Windows

A guy walks into his local grocery. Noting the price of bananas is 89 cents per pound, he complains that the grocery across the street sells bananas for 69 cents per pound. The grocer asks him why he didn’t buy bananas from the other grocery. “They are all out of bananas.” The grocer tells him, “When we’re all out, we sell them for 49 cents per pound.” 

It makes sense, doesn’t it? When Grocer A runs out of bananas, Grocer B can charge more. As the supply dwindles and he continues to raise his price, some customers will switch to oranges. Meanwhile, banana growers, realizing more profit, will produce more bananas. But now there are fewer customers because some converted to oranges, so grocers will lower the price to sell their bananas before they go bad. This shows that profits motivate sellers to adjust prices to meet changing supply and demand.

This is common sense economics, understood since people first began to trade. An “education” in basic economics just gives you the ability to draw graphs about prices, supply and demand. “Advanced economics” gives certain economists like Paul Krugman the ability to baffle the masses with more complicated graphs. We are led to believe that government intervention by politicians, justified by graph-makers, will cause more employment, abundant goods, stable prices, and a chicken in every pot. Common sense flies out the window. 

The economy is so complex that it’s impossible to determine all the effects of government intervention. A 19th century economist, Frederic Bastiat wrote, “There is only one difference between a bad economist and a good one: the bad economist confines himself to the visible effect; the good economist takes into account both the effect that can be seen and those effects that must be foreseen.” Bastiat went on to describe the “Broken Window Fallacy” to illustrate the point. Let’s go back to the grocery. 

While the grocer and customer haggle over bananas, a hoodlum throws a rock through the front window. A crowd gathers and begins to discuss the misfortune of the grocer who will have to pay $500 to have his window repaired. Eventually someone points out that the window repairman will have more money to buy bananas for his family. He’ll also buy a pane of glass, providing income for the glass manufacturer. The glass manufacturer will buy raw materials. Truck drivers will deliver these materials. This stimulus will ripple through the economy. When you consider these benefits, isn’t the hoodlum a hero? 

The broken window and the economic activity it will create are easily seen. What is not seen is what would have transpired had the window never been broken. Prior to the act of vandalism the grocer had a good window and $500. After the repair he only has a good window, but not the $500. What would he have done with the $500? Perhaps Christmas bonuses for his staff, a vacation for his family, a new credit card machine to improve service at the checkout register? The very grocer who earned that $500 gets none of the benefit of it! Five hundred dollars of his wealth has been destroyed. If this were truly an effective economic stimulus, the government could hire hoodlums to break windows everywhere!  

The Broken Window Fallacy has been thriving ever since people first began asking government to improve their lives. It’s all the rage today. A tax levied on one group of people to benefit another group has the same effect as throwing rocks through windows. 

Here are some examples of the Broken Window Fallacy:
  • Economic development subsidies (see Gaylord Entertainment)
  • Stimulus programs
  • War-on-Poverty programs
  • Government jobs programs
No economist or politician can tell you what would have been created if the tax was never collected.  But you know what you would have bought with the money. Even if you just buy bananas, it’s best left to the wisdom of individuals who own the money instead of government.


No comments:

Post a Comment