It's not always easy to control your feelings about rivals but adopting your competitor's perspective can promote cool, rational decision-making even in tough competitions.

I prefer to discern evidence of rational decision-making.

People who often use several screens at once have less 'grey matter' in a part of the brain linked to emotional control and rational decision-making, according to the study.

And she said no 'rational decision-making' person could decide not to expel him.

The second, substantive meaning presupposes neither rational decision-making nor conditions of scarcity.