The goal of this paper is to study the consequences of non-reciprocal or unilateral altruism, that is, of altruism between individuals who have different concern for others. By contrast to what the literature usually shows — that unilateral altruists lead egoists to cooperate, that...

In this paper, we study the impact of altruism on an interaction between a samaritan and a recipient/parasite in the frame of Buchanan's samaritan's dilemma (1975). We show that, as soon as altruism reaches a certain threshold, the equilibrium of the game corresponds to the situation Buchanan...

The economic analysis of law mostly relies on the assumption of self-interested agents. Until the early 1970s, it is little concerned with the issues of rescue and helping. Now, an economic analysis of rescue laws appears with the works of Landes and Posner (1978). We show that the emergence and...

Written by James Buchanan in the early 1970s, “The Samaritan's Dilemma” is a pessimistic essay, marked by his author's negative views about the situation in Western societies at that time. Yet, the situation described in this essay also fits into Buchanan’s approach of cooperation and...