Altruistic punishment is a fundamental driver for cooperation in human interactions. In this paper, we expand our understanding of this form of costly punishment to help explain a puzzle of voting behavior: why do people who are indifferent between two potential policy outcomes of an election...

The expression "cash-for-votes" describes a form of vote buying in which candidates for office pay individuals in exchange for their votes. That practice undermines the functioning of democracy but is pervasive in many parts of the world, especially in the Global South. We discuss estimates of...