Dividing an obligation among two delegates lets the principal extract more from each.

Evidence

If B is obligated to a particular duty toward A, and if he delegates this duty to C and D among whom it is to be distributed, then A is greatly tempted to impose on each of them, if possible, a little more than half; from both together, therefore, he profits more than he would have earlier, when the duty was in the hand of only one person. — Georg Simmel, The Sociology of Georg Simmel, 4528

Categorization

• DEFINE: Concretely illustrates the tertius gaudens dynamic through division of duties — the arithmetic of ‘two-ness’ benefiting the third party.