Jan Slort,

Paying for the maintenance of roads and bridges can be shifted to tolls. They are less intrusive and expensive to operate than previously, and they are increasingly being used.

With time, costs change. Water will likely become more expensive, and gasoline has become cheaper in real terms for decades. Hotel stays have increased in price while information transfers have plummeted.

Political and legislative distortions can raise or lower prices, such as rent controls in cities and tariffs on Chinese imports.

Best.