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The Privatization of Roads and Highways - Ludwig von Mises Institute

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136 <strong>The</strong> <strong>Privatization</strong> <strong>of</strong> <strong>Roads</strong> <strong>and</strong> <strong>Highways</strong><br />

clusion that he really relishes the service in question <strong>and</strong> is seeking<br />

a “free ride.” It may be that he simply does not want it. We<br />

can speculate at length about the different reasons people have<br />

for not buying something (distaste, ignorance, the desire to “free<br />

ride”), but we cannot as scientific economists conclude from the<br />

fact <strong>of</strong> nonpurchase that the person “really” values the good.<br />

If we could legitimately reason in this manner, the sky would<br />

be the limit. Once we leave the solid foundations <strong>of</strong> preferences<br />

revealed in market action, the imagination is left free. Some contend<br />

that parks, roads, <strong>and</strong> national defense are public goods <strong>and</strong><br />

would receive underinvestments in a free market. But using the<br />

same reasoning, one might hold that Edsels, pickle-flavored ice<br />

cream, <strong>and</strong> kerosene lamps are presently victims <strong>of</strong> vicious<br />

underinvestment because people are secretly waiting for everyone<br />

else to buy first, so that they can be free riders. All <strong>of</strong> these<br />

claims have the same logical status. Each is conceivable <strong>and</strong><br />

expressible in ordinary discourse. But none is supported by<br />

demonstrated preference. We must regard all <strong>of</strong> them as scientifically<br />

invalid.<br />

ISOLABILITY<br />

Another argument for government provision <strong>of</strong> roads, closely<br />

allied to the externalities argument, might be called the isolability<br />

condition. According to this line <strong>of</strong> thought, a good or service<br />

comes properly under the province <strong>of</strong> the marketplace only if its<br />

benefits can be isolated <strong>and</strong> imputed to specific individuals. Otherwise<br />

its benefits are said to be “diffused,” <strong>and</strong> the good in question<br />

must then be supplied by government. As stated by one<br />

advocate <strong>of</strong> this position: “If it were agreed that the benefits from<br />

highway improvements are so diffused among inhabitants <strong>of</strong> a<br />

state that it is impossible to isolate individual beneficiaries, . . .<br />

[then] highways should be supported from the general fund.” 51<br />

51 D. Netter, “Toll <strong>Roads</strong> <strong>and</strong> the Crisis in Highway Finance,” National Tax<br />

Journal 5, no. 2 (June 1952): 109.

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