Direct Preference Revelation (直接显示性偏好) Suppose that the bundle x is chosen when the bundle y is affordable hen x* is revealed directly as preferred to y (otherwise y would have been chosen 北京大学经济学院 Slide北京大学经济学院 Slide9 Direct Preference Revelation （直接显示性偏好） • Suppose that the bundle x* is chosen when the bundle y is affordable. • Then x* is revealed directly as preferred to y (otherwise y would have been chosen)