问巴罗证明的李嘉图等价的意义

Barro把李嘉图等价严格用数学表达的文章是1974年发表在JPE的Are government bond net wealth？不过个人推荐巴罗后来自己写的The Ricardian approach to budget deficits，对李嘉图等价的阐述比较全面清晰一些，可以在下面链接中下载http://www.ukzn.ac.za/economics/viegi/teaching/uct/barro.pdf
20# nicolenico