 This confirms the findings of anthropology which suggest that a "gift economy" preceded the more recent market systems where win-lose or risk-avoidance lose-lose calculations apply.Economists tend to disagree with these critiques, arguing that it may be relevant to analyze the consequences of enlightened egoism just as it may be worthwhile to consider altruistic or social behavior.Others argue that we need to understand the consequences of such narrow-minded greed even if only a small percentage of the population embraces such motives.