A new interpretation and derivation of the Swaps index
揭示了Swaps指数与Kemeny规则之间的联系，为Swaps指数提供了新解释，使其成为衡量偏好中菜单依赖性的合适指标。
The Swaps index (Apesteguia and Ballester, 2015) is a popular measure of rationality in the revealed preference literature. In this note, we show a connection between the Swaps index and the Kemeny rule, a well-known method of preference aggregation in social choice theory. Our new interpretation of the Swaps index makes it a suitable measure of menu dependence in preferences.