题目内容
When externalities are present, reaching an efficient outcome is especially difficult when the number of interested parties is large.
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Sophia sits behind Gabriel on an airplane. Gabriel owns the right to recline his seat and values this right at $10. Sophia values a non-reclined seat in front of her at $20. Assuming no transaction costs, an efficient solution would be for Sophia to pay Gabriel $15 to not recline his seat.
16．整个商业银行体系存款准备总额增加是来自于：
19．现金漏损率越高，则存款货币创造乘数：
20．存款货币银行派生存款的能力：
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