4Townsend, Optimal Contracts and Competitive Markets with Costly State Verification [J]. Journal of Economic Theory, 1979, (21) : 265 - 293.
5Gale D., M. Hellwig, Incentive-Compatale Debt Contracts the One Period Problem [J]. Review of Economic Study, 1985, (11): 647- 663.
6Hart, Moore, Debt and Seniority: an Analysis of the Role of Hard Claims in Constraining Management [J]. American Economic Review, 1995, (85) : 567 - 583.
7Monnet C., E. Quintin, Optimal Contracts in a Dynamic Costly State Verification Model [EB/OL]. European central bank working paper 126, 2002.
8Garino G. Cosily State Verification with Varying Risk Preferences and Liability[J]. Journal of Economic Surverys, 2006, 20 (1): 71 - 109.
9Helmut B., The role of collateral in a model of Debt renegotiation [J]. Journal of Money, Credit and Banking, 1994, 26 (1) : 72 - 86.
10Coco G.., On the Use of Collateral [J]. Journal of Economic Surveys 2000, (14) : 191 - 214.
