Like the biologist, the economist predicts the effects of environmental changes on the surviving class of living organisms; the economist need not as… - Armen Alchian

By this I refer to the fact that at the same time several people may each possess some portion of the rights to use the land. A may possess the right to grow wheat on it. B may possess the right to walk across it. C may possess the right to dump ashes and smoke on it. D may possess the right to fly an airplane over it. E may have the right to subject it to vibrations consequent to the use of some neighboring equipment. And each of these rights may be transferable. In sum, private property rights to various partitioned uses of land are "owned" by different persons.

Before condemning violence (physical force) as a means of social control, note that its threatened or actual use is widely practiced and respected—at least when applied successfully on a national scale. Julius Caesar conquered Gaul and was honored by the Romans; had he simply roughed up the local residents, he would have been damned as a gangster. Alexander the Great, who conquered the Near East, was not regarded by the Greeks as a ruffian, nor was Charlemagne after he conquered Europe. Europeans acquired and divided—and redivided—America by force. Lenin is not regarded in Russia as a subversive. Nor is Spain’s Franco, Cuba’s Castro, Nigeria’s Gowon, Uganda’s Amin, China’s Mao, our George Washington.

Alchian: Perhaps it might have been more appropriate for the Nobel Prize to have gone to you and Hicks together, and [Kenneth] Arrow and [Gunnar] Myrdal together.
Hayek: Oh, surely. [laughter]