If the (un)trustworthy are rare, people will talk about them, making their detectionmore reliable and / or less costly. When, however, both types appear in large numbers,detecting (un)trustworthiness will be considerably more difficult and possibly too costly.Based on Güth and Kliemt (2000) we...

The indirect evolutionary approach integrates forward-looking evaluation of opportunitiesand adaptation in the light of the past. Subjective motivation determines behavior,but long-run evolutionary success of motivational types depends on objective factors only.This can justify intrinsic...