Continued roadblocks created by planning laws will contribute to a persistent shortage of houses, preventing steeper falls in values.

The purpose was to address a persistent shortage of teachers for the common schools in the area.

Only when the planning urge overcomes our leaders do we risk persistent shortages or surpluses.

There are persistent shortages of common foodstuffs.

This automatic abolition of non-market-clearing situations distinguishes markets from central planning schemes, which often have a difficult time getting prices right and suffer from persistent shortages of goods and services.