MODELING SOVEREIGN RISKS: FROM A HYBRID MODEL TO THE GENERALIZED DENSITY APPROACH

Motivated by the European sovereign debt crisis, we propose a hybrid sovereign default model that combines an accessible part taking into account the evolution of the sovereign solvency and the impact of critical political events, and a totally inaccessible part for the idiosyncratic credit risk. We obtain closed‐form formulas for the probability that the default occurs at critical political dates in a Markovian setting. Moreover, we introduce a generalized density framework for the hybrid default time and deduce the compensator process of default. Finally, we apply the hybrid model and the generalized density to the valuation of sovereign bonds and explain the significant jumps in long‐term government bond yields during the sovereign crisis.     

Ownership discrimination and private firms financing in China

This study examines the financing/funding of private firms in China. Our results show that private firms are significantly less funded through formal financing channels such as bank loans than state-owned firms, and hence have to resort to alternative financing such as trade credit. Consistent with the theoretical expectation and literature, there is a substitution effect between trade credit and bank loans for private firms, but this effect is much weaker compared to that of state-owned firms. Moreover, while the univariate comparisons indicate that private firms obtain more notes payable than state-owned firms, the multivariate regression analyses show that the relation between bank loan and notes payable is positive and indifferent between private and state-owned firms.     

中国的金融市场开发与借款证券化

在当今社会，市场对金融运行的压力越来越大，传统的融资方式已难以满足投资者的需要。一种新的金融形式——贷款证券化，使资金拥有者可以通过这一渠道将资金转移到贷款者手中。通过这种形式，可以很好地解决当今社会许多融资难的问题。目前，这种融资形式正在引起我国许多业界人士的注意，这种形式如果能够在我国的金融体系中得到完善，将会极大地促进我国的经济建设，也能很好地解决我国投融资体系中存在的诸多现实问题。     

Debtor-in-possession financing

Several recent papers have documented the benefits of debtor-in-possession (DIP) financing in the restructuring of firms in Chapter 11. However, the view on benefits is not unanimous and some legal scholars have raised doubts about DIP financing's effects on debt-holders and the possibility of expropriative wealth transfers. In this paper we address this issue by analyzing both stock and bond price data for a comprehensive sample of DIP loans and find significant positive abnormal stock and bond returns at the announcement of DIP loans. Also, we do not find evidence of wealth transfers from junior to senior debt-holders. Further, we examine the DIP loan process in detail and we document important institutional features of DIP loans such as maturity, covenants, fees and interest charges. We find evidence of intense monitoring using covenants. We also find higher fees and charges associated with DIP loans. We argue that overall the results are consistent with the information processing role of financial intermediaries.     

A Dynamic Analysis of Fixed- and Adjustable-Rate Mortgage Terminations

This paper provides a side-by-side comparison of loan-level statistical models for fixed- and adjustable-rate mortgages. Multinomial logit models for quarterly conditional probabilities of default and prepayment are estimated. We find that the estimated impacts of embedded option values for prepayment and default are generally quite similar across both FRM and ARM loans, providing additional empirical support for the basic predictions of the options theory. We also find that differences in estimates of conditional probabilities of prepayment and default associated with mortgage age, origination period, original LTV, and relative loan size, indicate the continued significance of these other economic and demographic factors for empirical models of mortgage terminations.     

国家助学贷款的风险与防范

国家助学贷款是一个政治、福利、教育、金融概念的混合体。本文主要从国家助学贷款发放的现状、存在的问题人手，提出了应加强维护信用制度的法律建设；创建良好的社会信用环境；改进管理制度与操作模式；加强各部门的协调与沟通等防范措施。     

对远期外汇合约信用风险的监管

随着远期外汇合约近几年来在我国的逐步推行,外汇市场活跃的同时也增加了外汇交易的信用风险,。要实现外汇市场的有序开放和稳定发展,就必须对其实行有效的风险管理,这包括交易主体对信用风险的识别,处置和外部监管。     

国家助学贷款：问题与建议

1996年高校招生实行并轨 ,高等教育收费制度的改革已日趋明朗 ,随着扩大招生、收费制度的改革 ,迎面而来的是逐年增多的贫困生 ,为了扩大教育消费、为了不让贫困生辍学 ,政府出台了国家助学贷款政策。实施几年来 ,显现出诸多问题 ,给全面落实带来了困难。目前国家助学贷款在重点院校进展顺利 ,而在普通院校及中小型院校进展缓慢 ,必须加以研究与解决