Shared cooperative pressure can itself generate trust between opposing parties.

Evidence

The cooperative exchanges of mutual restraint actually changed the nature of the interaction. They tended to make the two sides care about each other’s welfare’ (Axelrod 1984: 85). In the previous section we saw that interest, irrespective of trust, could make cooperation more likely simply by making action more pressing. On closer inspection we find that when that pressure is commonly shared and this fact is known to both sides, then cooperation is motivated and trust itself may increase as a result. — Diego Gambetta, Trust - Making and Breaking Cooperative…, 2794

Categorization

• XREF: Directly feeds the reader’s Hardin/Luhmann integration: this is the claim that cooperative restraint creates rather than presupposes trust — relevant to the doctor’s wife’s role.