Economic Impact of Our Prison Population
America’s prison population has been in the news recently, having reached a record high in absolute numbers, partly due to population growth, of course, but still representing about 1 percent of the adult population. Economic statistics are affected by imprisonment. The person in prison stops paying taxes and generating GDP. The companies that built prisons and the people who work in prisons are accounted for as adding to GDP (story). If we assume that for every two people in prison, there is one person involved in prison construction or management, and that prisoners and guards would both make average salaries if working in some other industry, the effect on the economy is 1% down from the prisoners not working and 1/2% up from the prison industry working.
Does it make sense to say that our GDP is reduced by only 1/2%? Suppose that 66.6% of us were in prison and 33.3% of us were building and running prisons. An economist would say that our economy was reduced either by 33.3% or 66.6%. In fact, however, no food would be grown, no products manufactured, and no private houses constructed. People wouldn’t be able to buy import anything from other countries because the 33.3% of the population that was working would have to pay 100% of its salary in tax just so that it could pay itself.
Putting immigrants in prison is probably the worst imaginable thing to be doing economically. It is tough to find good national statistics, but http://www.nytimes.com/2007/05/30/business/30leonside.html seems to indicate that about 7 percent of the U.S. population are noncitizens and that the percentage among prisoners is similar (it is about 17 percent in California state prisons). Suppose that 1 million immigrants come over the border tomorrow, commit crimes, are apprehended, and are put in prison. The economists would record a massive spike in GDP. We paid police officers to find these folks, we paid construction workers to build new prisons, we paid guards to watch them, we paid managers to supervise the guards, we paid farmers to divert grain from our biofuels program to feed these folks. So the numbers look great temporarily, but the effect on the welfare of American citizens and our competitiveness for new business investment would be devastating. [Just as the tornado that hit Atlanta yesterday will increase GDP as windows are replaced and buildings repaired, though the people of Atlanta are certainly not better off and we could have spent that money building factories instead.]
At the very least, running an expensive prison system seems to put us at a competitive disadvantage to countries that can manage to achieve similar levels of public security without such a large or expensive prison system. Our taxes will be higher compared to those other countries and that will discourage business investment.
If we want to dig ourselves out of this recession, we may have to stop committing crimes against each other!
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