The American Economic Association Dues Structure
研究了美国经济协会按收入自愿缴纳会费的制度，发现尽管存在少量欺骗行为，但大部分成员遵守了该制度，并解释了原因。
Because consumers have an incentive to misrepresent their incomes and accurate information about consumers' incomes is costly for sellers to obtain, income-based pricing of goods or services seems unlikely to survive for long. Indeed, income-based pricing is extremely rare. However, the American Economic Association's dues structure in which members voluntarily pay dues according to income has survived for twenty years. The authors’ survey results reveal that while some ‘cheating’ does occur, there is substantial compliance with the income-based dues structure. They offer several explanations for their findings.