Credit Rationing,Income Exaggeration,and Adverse Selection in the Mortgage Market

We examine the role of borrower concerns about future credit availability in mitigating the effects of adverse selection and income misrepresentation in the mortgage market. We show that the majority of additional risk associated with “low‐doc” mortgages originated prior to the Great Recession was due to adverse selection on the part of borrowers who could verify income but chose not to. We provide novel evidence that these borrowers were more likely to inflate or exaggerate their income. Our analysis suggests that recent regulatory changes that have essentially eliminated the low‐doc loan product would result in credit rationing against self‐employed borrowers.     

Excess Returns to R&D-Intensive Firms

Recent studies indicate that both current R&D investment levels and current or recent changes in R&D investment are positively associated with subsequent excess (risk-adjusted) stock returns. The tentative explanation offered for these results is that shares of R&D-intensive firms are mispriced because investors fail to see through earnings distortions caused by conservative accounting for R&D costs. However, an alternative explanation is that conventional controls for risk do not completely capture the riskiness of R&D-intensive firms, causing measured excess returns for these firms to be biased upward. This study provides evidence useful for distinguishing between the mispricing and risk explanations for R&D-related excess returns. Overall, our empirical results suggest that the positive association between R&D investment levels and excess returns is more likely to result from failure to control adequately for risk than from mispricing. On the other hand, our results do not rule out the possibility of a second source of excess returns that are due to mispricing and that are associated with changes in the level of R&D investment.     

“十五”期间中国信贷市场发展展望

“十五”期间，我国金融机构贷款总量将继续增长，但增幅有所回落，贷款在企业资金来源中所占的比重与贷款占金融机构资产总额的比重将趋于下降。贷款结构趋于优化，不良贷款比率趋于下降，非国有企业贷款和外币贷款的比重快速上升，信贷市场与证券市场的关键日趋紧密，信贷资产证券化趋势增强。     

中国农村金融市场中非价格信贷配给的理论和实证分析

本文建立农村金融市场中非价格信贷配给的理论分析框架,基于特殊设计的直接诱导式询问方法,对农户面临的非价格信贷配给机制进行调查和识别,并实证分析影响非价格信贷配给机制的因素。研究发现,农村利率市场化改革以来,农村金融机构并没有将灵活的利率差异化管理作为弥补潜在贷款损失的手段。当前农村金融市场中多种类型的非价格信贷配给机制并存,农村金融机构的信贷合约特征和放贷行为偏好使得一部分农户被配给出信贷市场,一部分农户主动退出信贷市场。农村金融机构倾向于与农村地区少数生产规模较大、具有稳定收入和身份特征的农户建立稳定的、以重复放贷为基础的信贷供给机制,不具备这些特征的农户将面临配给,这与利率管制时期的放贷行为并无本质差异。未来须调整仅仅以增加农村金融供给解决融资难题的改革思路,深入到市场结构、信贷合约和产品创新以及包括公司治理、风险甄别和内部管理机制在内的农村金融机构治理机制等微观层面的改革。     

信息不对称状况下的信贷配给

信息不完全普遍存在于商业信贷活动中,这使得信贷配给成为一个普遍的现象。本文借鉴了前人理论,通过建立不完全信息条件下的信贷配给模型,分析了信贷配给的形成机理。由此得到的启示是,缓解信贷配给问题关键在于营造一个理想的社会化信用环境,改善中小企业整体资信状况。     

Signaling-Screening Equilibrium in the Mortgage Market

The signaling model of Spence (1973a) and the screening model of Rothchild and Stiglitz (1976) have been separately used to explain economic phenomena when there is asymmetric information. In the real world, however, situations of asymmetric information often simultaneously involve signaling and screening. In this paper, we combine signaling and screening mechanisms and demonstrate a signaling-screening separating equilibrium. We present the analysis within the framework of mortgage markets. Borrowers signal their default risk types to lenders by acquiring different credit records. This partially separates borrowers into subsets. Lenders screen each subset by offering menus of mortgage loan contracts. Borrowers, then, self-select by choosing particular contracts from the menu. We show the conditions under which the signaling-screening equilibrium is Pareto superior to a screening-only equilibrium.     

Credit ratings and the cross-section of stock returns

Low credit risk firms realize higher returns than high credit risk firms. This is puzzling because investors seem to pay a premium for bearing credit risk. The credit risk effect manifests itself due to the poor performance of low-rated stocks (which account for 4.2% of total market capitalization) during periods of financial distress. Around rating downgrades, low-rated firms experience considerable negative returns amid strong institutional selling, whereas returns do not differ across credit risk groups in stable or improving credit conditions. The evidence for the credit risk effect points towards mispricing generated by retail investors and sustained by illiquidity and short sell constraints.     

信贷市场、资本市场与我国的储蓄投资转化率

储蓄向投资转化是金融体系最基本的功能.本文首先从理论上论证信贷市场、资本市场在储蓄投资转化过程中是竞争又合作的动态互补关系,接着以灰色关联度的数量方法论证我国目前正处于金融体系历史演变阶段中的弱市场导向阶段,信贷市场仍然在储蓄向投资转化的过程中占主体地位,以股市为代表的资本市场对储蓄投资转化率的影响较小,但已呈现出向上发展的态势.我国应在加大银行部门发展的基础上大力发展资本市场,并从法律政策、政府监管等方面进行完善,充分发挥资本市场的作用,建立适合中国自身特点的金融结构.     

信贷市场、资本市场与我国的储蓄投资转化率

储蓄向投资转化是金融体系最基本的功能。本文首先从理论上论证信贷市场、资本市场在储蓄投资转化过程中是竞争又合作的动态互补关系，接着以灰色关联度的数量方法论证我国目前正处于金融体系历史演变阶段中的弱市场导向阶段，信贷市场仍然在储蓄向投资转化的过程中占主体地位，以股市为代表的资本市场对储蓄投资转化率的影响较小，但已呈现出向上发展的态势。我国应在加大银行部门发展的基础上大力发展资本市场，并从法律政策、政府监管等方面进行完善，充分发挥资本市场的作用，建立适合中国自身特点的金融结构。     

Bank and Nonbank Lenders and the Commercial Mortgage Market

This paper develops an equilibrium model of the commercial mortgage market that includes the sequence from commitment to origination and allows testing for differences by type of lender. From borrowers, loan demand is based on the income yield, capital gains, and expectations about return distributions. Lenders use prices such as mortgage rates and their distributions, and quantities in underwriting standards. There are separate equilibria in the markets for loan commitments and originations. Bank and nonbank lenders are not restricted to the same lending technology, nor to the weights placed on mortgage rates as opposed to underwriting standards. Empirical results for the United States commercial mortgage market indicate that banks use interest rates in allocating credit while nonbanks rely on underwriting standards, notably the loan-to-value ratio. A consequence is that nonbanks have a clientele incentive towards making low cap rate loans compensated by low loan-to-value ratios.     

Do industries contain predictive information for the Fama–French factors?

We examine whether the returns of US industry portfolios predict the returns and volatility of Fama and French's small-minus-big (SMB) and high-minus-low (HML) factors. The analysis reveals that all 30 industry returns strongly forecast one-month-ahead SMB factor returns. Moreover, a significant number of industry returns predict the volatility of the SMB and HML factors by up to two or three months. These findings suggest that US industry returns contain profitable information on Fama–French SMB and HML factors, and since most investors cannot extract the profitable information contained in industry returns in a timely manner, this information gradually diffuses in equity markets.     

An Empirical Comparison of Credit Spreads between the Bond Market and the Credit Default Swap Market

This paper compares the pricing of credit risk in the bond market and the fast-growing credit default swap (CDS) market. The cointegration test confirms that the theoretical parity relationship between the two credit spreads holds as a long-run equilibrium condition. Nevertheless, substantial deviation from the parity can arise in the short run. The panel data study and the VECM analysis both suggest that the deviation is largely due to the higher responsiveness of CDS premia to changes in credit conditions. Moreover, it exhibits a certain degree of persistence in that only 10% of price discrepancies can be removed within a business day.     

Borrower Self-Selection,Underwriting Costs,and Subprime Mortgage Credit Supply

In the U.S., households participate in two very different types of credit markets. Personal lending is characterized by continuous risk-based pricing in which lenders offer households a continuous distribution of borrowing possibilities based on estimates of their creditworthiness. This contrasts sharply with mortgage markets where lenders specialize in specific risk categories of borrowers and mortgage supply is stepwise linear. The contrast between continuous lending for personal loans and discrete lending by specialized lenders for mortgage credit has led to concerns regarding the efficiency and equity of mortgage lending. This paper sheds both theoretical and empirical light on the differences in the two credit markets. The theory section demonstrates why, in a perfectly competitive credit market where all lenders have the same underwriting technology, mortgage credit supply curves are stepwise linear and lenders specialize in prime or subprime lending. The empirical section then provides evidence that borrowers are being effectively sorted based on risk characteristics by the market.     

中国商业银行市场势力对其效率和稳定性的影响

文章运用随机边界模型估算了中国商业银行近十年来的成本、利润效率,并分别以勒纳指数和Z指数代表市场势力和稳定性,考察了市场势力对银行经营效率和稳定性的影响。结果表明:内地商业银行整体的效率逐年上升,但仍落后于香港的银行;四大商业银行的效率低于中小银行。市场势力与效率呈反向关系,而与稳定性的关系要区别对待:市场势力一方面增加了中小银行和香港银行的稳定性,另一方面也增加了四大商业银行和交通银行的经营风险。因此,继续深入金融自由化和银行业改革,恰当地引入一些竞争,会对中国商业银行经营的效率和稳定性起到积极的作用。     

信贷配给理论发展、模型与实证研究

信贷配给理论是一个比较复杂的经济学理论,对于信贷配给至今还没有一个统一公认的定义,该理论不仅内容多、不系统,且理论模型多又较为分散,实证研究虽已处于起步阶段但度量仍较为困难。中国学者对此问题也进行了10多年的研究,研究基本分为两类:一类是零散介绍西方信贷配给理论研究情况,另一类是结合中国国情进行了相应的信贷配给问题的研究。为全面理解和把握好信贷配给理论,本文从信贷配给定义、信贷配给理论发展、信贷配给理论模型、信贷配给实证和中国信贷配给理论研究等多视角,对信贷配给理论与实证文献进行了一次比较全面、系统的梳理。     

Market integration and currency risk in Asian emerging markets

Most of the Asian emerging stock markets started to liberalize their markets in 1990s. In this paper, I examine whether those markets have become integrated with world stock market since the 1990s by estimating and testing a dynamic version of international CAPM (ICAPM) in the absence of purchasing power parity (PPP) using a parsimonious multivariate GARCH-in-Mean (MGARCH-M) approach. I also investigate to what extent the liberalization process has affected the cost of capital and price volatility for each market. The empirical results show that Philippines was segmented from the world stock market before its liberalization date, but no evidence of market segmentation is found for the other five markets (India, Korea, Malaysia, Taiwan, and Thailand) before their liberalization dates. However, all six markets have become integrated after opening up their markets to foreign investors. In addition, the estimated risk premia are lower after the liberalization, indicating that the liberalization process has reduced the cost of capital for their domestic firms. Moreover, there is no evidence of extra market volatility introduced by capital market liberalization, and on the contrary, the markets have become more stabilized through the liberalization process.     

Pricing of the currency risk in the Canadian equity market

Based on a three-factor international capital asset pricing model, we examine whether the world market, the local market and the currency risks are priced in the Canadian equity market. The analysis presented in this paper is based on data collected from 2003 to 2010. As the dataset also includes the period of global financial crisis, we examine the issue of risk pricing in the full sample as well as in before and after global financial crisis periods. Unlike most existing studies, the empirical results presented in this paper are based on (i) the quasi maximum likelihood estimation (QMLE) based multivariate GARCH-in-Mean specification and (ii) the generalized method of moments (GMM) techniques. Our empirical analysis based on weekly data on 58 largest Canadian firms indicates that the currency as well as the local and the world market risks are priced in the Canadian equity market. This result holds for all exchange currency rates proxies and in all sample periods. We find that the price of the world market, the local market and the currency risks is time-varying and the Canadian equity market is partially segmented.     

Accounting, Intangible Assets, Stock Market Activity, and Measurement and Disclosure Policy—Views From the U.K.

This paper considers the impact of U.K. practices with respect to the measurement and disclosure of intangible assets, focusing on R&D activities. We first update prior U.K. work relating R&D activities to market prices. Second, given the clearly identified role of disclosure outside of the financial statements in helping market participants value R&D expenditures, we consider whether market forces are generally sufficient to ensure adequate disclosures with respect to intangibles by considering the cases of two biotechnology firms involved in the issuance of misleading disclosures. Within this context, we consider how disclosure regulation and enforcement mechanisms have evolved in recent years, and how this evolution has likely been affected by our 'scandal' cases. Our conclusions are that the case of the U.K. does not give rise to any wide-scale concerns about the economic ill-effects caused by the current state of recognition and disclosure with respect to expenditures on intangibles. Further, market forces are unlikely to be sufficient in ensuring honest and timely disclosures with respect to intangibles, but the combination of official regulation and voluntary self-regulation appears to have stemmed the tide of any such disclosure scandals in the U.K.     

规模经济、市场竞争与中小商业银行发展策略研究

利用我国商业银行的资产和利润率等指标构建新增单位资产利润率以及赫芬达尔指数研究我国商业银行的规模经济与增长效率间的内在关系以及行业竞争对增长效率的影响。结果表明2004-2010年间我国大型国有、股份制以及城商行存在表现出利润随规模增长的规模经济特性,但是增长效率呈现下降趋势,市场竞争导致一些商业银行规模的外在不经济。同时结合我国商业银行发展和监管实际提出了我国城商行的未来发展策略等对策。