**7. Concluding Remarks**

*Reflective* individuals are more likely to act rational and self-interested in social dilemma tasks and *intuitive* individuals are more likely to bring their internalized cooperative and fair behavior to the lab. Acknowledging that individuals differ in their cognitive reflection ability entails greater prediction and description of decision making. *Intuitive* individuals are more likely to act as a strong reciprocator and do not tolerate selfish deviations for material incentives. Explaining the *intuitive* decision in the lab by the Social Heuristic Hypothesis insights are gained regarding how society maintains the cooperative and fair behavior and could shed light on cultural differences. A topic for future research is to investigate whether the *intuitive* behavior is prosocial across cultures. Future research could differentiate the perspectives further to predict decision making with greater precision and understand the behavioral differences in more detail.

**Funding:** This research received no external funding.

**Acknowledgments:** I want to thank Alexander Koch for helpful comments and feedback during the process of designing the experiments as well as writing the article.

**Conflicts of Interest:** The author declares no conflict of interest.
