# Unwavering cooperators make group efforts easier to start but harder to sustain

Source: [PsyPost – Psychology News](https://www.psypost.org/unwavering-cooperators-make-group-efforts-easier-to-start-but-harder-to-sustain/) · 2026-11-14 · Mind
Page: https://themorning.science/story/unwavering-cooperators-make-group-efforts-easier-to-start-but-harder-to-sustain-9fab2512ba83a666
Kind: research · Impact: low

## In brief

- A new mathematical modeling study finds that a small group of unconditionally cooperative individuals can make it easier for a group to start a shared effort.
- The same study suggests their reliability may encourage others to slack off over the long run, making the effort harder to sustain.
- The source is a short PsyPost summary; details of the model's assumptions and sample size are not available in the provided text.

## Why it matters

The findings suggest that consistent contributors can help launch collective efforts but may unintentionally reduce cooperation over time, which is relevant to how researchers think about group dynamics and public goods.

## Timeline

- 2026-11-14: PsyPost reports on a new mathematical modeling study about unwavering cooperators in group efforts

## Coverage

- [Unwavering cooperators make group efforts easier to start but harder to sustain](https://www.psypost.org/unwavering-cooperators-make-group-efforts-easier-to-start-but-harder-to-sustain/) — PsyPost – Psychology News, 2026-11-14

Tags: cooperation, collective action, game theory, group dynamics, modeling

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science