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Wednesday, February 28, 2007

An Example Of Why Price Controls Don’t Work

Bart Hinkle has an interesting post today about an article in the USA Today concerning “congestion pricing” and what it has done to traffic jams on high-traffic roads.

The average driver in the Los Angeles area spends the equivalent of more than two workweeks each year stuck in traffic. But one place where cars and trucks hum along at full speed is in the left lanes of a 10-mile stretch of State Road 91, an east-west highway in Orange County.

That’s because those lanes use a toll system known as “congestion pricing.” Tolls on SR 91 vary depending on time of day, from $1.15 to $9.25, and are priced to keep traffic moving.

Congestion pricing is essentially a reflection of free-market pricing.  In the case of toll roads, traffic capacity is finite.  Only so many cars can be on a given road at one time, so when demand for road space increases so does the price.  This encourages people to conserve road space by traveling at different times, or finding alternate routes, ultimately leading to a quicker trip home for everyone.  When the toll price is controlled, however, and does not fluctuate with demand you get traffic jams.  Or, put another way, shortages in road space.

Now apply this thinking to, say, health care.  Currently health care costs more than anyone would like, but if we try to “solve” that problem by putting the government in charge of doling out our health care we’re going to run into shortages.  Why?  Because the government has only a finite budget for health care and they cannot provide to unlimited supply of health services to a public that isn’t paying for them directly.  In a government-backed health care system we would all pay into the system whether we like it or not and then could use the system whenever we needed it.  Because we will have already paid for the health services none of us will feel the need to shop around for cost-effective health care (or find another route home in the toll-roads example), nor will we be pressured by financial considerations to take care of ourselves so that we can avoid visits to the hospital (which is akin to traveling at a different time in the toll roads example).  Instead we’ll all try to cram into the government hospitals whenever we need care, and what we’ll ultimately be stuck with is Canadian and British-style operating waiting lists and health services shortages.

Sort of like the traffic jams that happen on toll roads where the toll doesn’t reflect demand.

You can apply this sort of thinking to other areas as well.  Like price controls on energy.  If Congress were to mandate that all gasoline must be sold for no more than $1.50 a gallon I think most of us would be appreciative...until there were gas shortages because the oil companies weren’t making enough money to produce enough gasoline to keep up with demand.  Look also at California’s power shortages from several years ago.  In that instance energy prices were capped, meaning that they couldn’t reflect real demand for energy.  So nobody in California felt financial pressure to, you know, shut off some lights or turn off the air conditioning.  At least, not until the shortages hit and those things were shut off for them.

Comments

Great article, Rob!  Price is the rationing element in the supply/demand relationship, so if prices are kept lower than market(govt price controls) or higher than market(taxes), it distorts the supply/demand relationship, resulting in consumer dissatisfaction.
In the case of the CA energy crisis, suppressing the price also suppressed the building of more generating capacity(with an assist from the enviro extremists), resulting in the shortage.  Markets always work better with minimal govt interference.


"If the good men are silent only the wicked are heard.” - Edmund Burke

robert108 on February 28, 2007 at 01:27 pm
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Brilliant analogy, Rob.

It’s so exquisite, I might have to steal* it.

You’ve been warned!

(*Or at least repeat it, with proper attribution.)

Bart Hinkle on March 1, 2007 at 07:09 am
Rob
Rob
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Steal away, sir!


The war against illegal plunder has been fought since the beginning of the world. But how is… legal plunder to be identified? Quite simply. See if the law takes from some persons what belongs to them, and gives it to other persons to whom it does not belong. See if the law benefits one citizen at the expense of another by doing what the citizen himself cannot do without committing a crime. Then abolish this law without delay … If such a law is not abolished immediately it will spread, multiply and develop into a system.

Frédéric Bastiat, The Law

Rob’s recently listened-to songs:

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Rob on March 1, 2007 at 07:26 am
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