Interpersonal relations: Cooperation and competition.

Schmitt (1984) wrote a map, not a lab report. The paper lists the knobs we can turn to study cooperation and competition.

It names four big knobs: how often partners check each other’s work, what facts they share, whether they meet face-to-face, and how much reward is at stake.

The goal was to give future researchers a clear recipe for turning social give-and-take into measurable behavior.

There are no new numbers here. Instead, the paper shows that cooperation is really about shared consequences.

When one person’s payoff depends on another’s behavior, you have cooperation. When payoffs clash, you have competition.

The author argues we can test these ideas in any setting by tweaking the four knobs.

Pomerleau et al. (1973) tried one of the first lab tests. They saw little true cooperation; kids just picked the easiest route. Their data warned us that friendly-looking actions can hide simple effort escape.

Spilles (2026) flipped the question into a real classroom. Third- and fourth-graders played a competitive Good Behavior Game and liked their peers more than kids in a cooperative version. The 2026 result extends the 1984 map: sometimes competition, not cooperation, builds social glue.

Marin et al. (2024) push the same worry. They say lab-perfect relations often fall apart in noisy everyday life. Together, the three papers say: take the 1984 knobs, but turn them in the wild, not just at the white table.

You now have a short checklist for social-skills groups or staff meetings. Ask: Do partners check each other? Do they share clear data? Do they meet in person? Is the prize big enough to matter? Change one knob at a time, measure what happens, and you are doing applied cooperation science.