所获奖励与支付价格之间的差额越大，消费越英明，得分就会越高，或者说“越划算”。
The greater the difference between the rewards for owning the good and the prices they paid, the wiser their purchases, and the higher the score, or "pay-off".
所获奖励与支付价格之间的差额越大，消费越英明，得分就会越高，或者说“越划算”。
The greater the difference between the rewards for owning the good and the prices they paid, the wiser their purchases, and the higher the score, or "pay-off".
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