政策性负担与长期预算软约束

经济学家们很早就注意到了政策性负担对预算软约束的影响,然而现有的有关政策性负担的理论模型主要集中讨论政策性负担与企业补贴的关系,但企业补贴并不等于预算软约束。为此,本文首先建立了一个简单的三阶段动态博弈模型,在该框架下我们可以准确地定义预算软约束问题,并分析政策性负担对预算软约束的影响。然后,我们利用重复博弈的思想将本文的基本模型动态化,建立了长期预算软约束的基本理论框架,这在现有的预算软约束文献中是不多见的,有助于更加全面地考察影响政策性负担、预算软约束和道德风险问题的各种因素。本文的主要结论是,政策性负担是导致企业出现预算软约束问题的重要根源之一,但如果政府和企业之间的博弈可以重复进行,预算软约束问题能够得到有效缓解。

Policy Burdens and Long-run Soft Budget Constraint

The traditional theories about SBC implicitly assume that the lender and debtor play the game only once. When we relax this assumption and consider the long-run relationship between the lender and debtor, SBC and moral hazard problem will be greatly alleviated. In this paper, we originate the concept of long-run SBC and construct a more general framework in which both traditional SBC and long-run SBC can be incorporated. Under the general framework, we discuss the effect of policy burdens on SBC, and demons...