李嘉图等价性命题是研究最优政府债务问题的出发点,如果人们出于跨代利他动机留下遗产(Bar- ro,1974)或赡养长辈(Carmichael,1982),李嘉图等价性命题成立,以税收方式还是发行债券的方式为政府支出筹资就没有任何实质性影响,不存在最优政府债务问题。然而,人们跨代转移财富并不一定出 The proposition of Ricardo's equivalence is the starting point for the study of the optimal government debt problem. If Ricardo's proposition of equivalence is established due to the motivation of transgenerational altruism (Bar- ro, 1974) or Carmichael (1982) There is no substantive impact on the way the tax revenue is issued or the way in which the bonds are issued, so there is no optimal government debt problem. However, people do not necessarily transfer wealth across generations