Since institutional economics is behavioristic, and the behavior in question is none other than the behavior of individuals while participating in tr… - John R. Commons

The smallest unit of the institutional economists is a unit of activity — a transaction, with its participants. Transactions intervene between the labor of the classic economists and the pleasures of the hedonic economists, simply because it is society that controls access to the forces of nature, and transactions are, not the "exchange of commodities," but the alienation and acquisition, between individuals, of the rights of property and liberty created by society, which must therefore be negotiated between the parties concerned before labor can produce, or consumers can consume, or commodities be physically exchanged.

The boot and shoe makers, either as shoemakers or “cordwainers,” have been the earliest and the most strenuous of American industrialists in their economic struggles. A highly skilled and intelligent class of tradesmen, widely scattered, easily menaced by commercial and industrial changes, they have resorted with determination at each new menace to the refuge of protective organizations.

Liberty is as much a matter of compulsion as duty, but where duty says to a person that he must or must not, liberty says to other persons that they must not interfere with that person, or that they even must help to prevent still other persons from interfering, if necessary.