Toward a Bottom‐Up Approach to Assessing Sovereign Default Risk

The authors propose a new approach to assessing sovereign risk that focuses on the underlying profitability and financial condition of a nations private corporate sector. More specifically, the authors show how their new Z‐Metrics™ approach—an updated and expanded version of the Alt‐man Z‐score methodology—can be used to measure the (cumulative) median probability of default of the non‐financial sector for the next five years, both as an absolute measure of corporate vulnerability and a relative measure that can be compared to the risk of other sovereigns and to the market's assessment as reflected in the prices of credit default swaps. In testing their approach, the authors measure the default probabilities of listed corporate entities in nine European countries, as well as the U.S., at two different points in time: the start of 2009 (and thus prior to the recognition of the Euro crisis by markets and most credit professionals) and for the first four months in 2010 (essentially, the beginning of the recognition of the crisis). Based on these two observations, the authors suggest that their corporate health index of the private sector would not only have served as an effective early warning indicator, but provided a (mostly) useful hierarchy of relative sovereign risks. In addition to predicting sovereign default risk, another potentially valuable use of the authors' model is to remind policy makers of the importance of a profitable private sector to the financial health of sovereign governments.     

Statistical classification models applied to common stock analysis

The application of statistical classification techniques to various aspects of equity financing and returns performance has been an attractive and fairly prolific area of research in the last 10–15 yrs. The various aspects of equity analysis relevant to classification techniques are more diverse than fixed income analysis and, until recently, presented more interesting empirical as well as theoretical challenges.The purpose of this paper is to review and comment upon numerous classification studies related to several aspects of common stock analysis, and, in so doing, to provide a clear picture of the variety of application areas amenable to statistical classification techniques. These areas include (1) common stock investment categories; (2) price-earnings and return-risk equity classification; (3) information content and return performance; and (4) capital structure questions.     

The Impact of the Rating Agencies' Through‐the‐cycle Methodology on Rating Dynamics

Surveys on the use of agency credit ratings reveal that some investors believe that credit‐rating agencies are relatively slow in adjusting their ratings. A well‐accepted explanation for this perception on rating timeliness is the through‐the‐cycle methodology that agencies use. Through‐the‐cycle ratings are intended to measure default risk over long investment horizons and to respond only to changes in the permanent component of credit quality. A second aspect of the through‐the‐cycle methodology is the prudent migration policy. In a benchmark study with a financial ratio‐based credit‐scoring models – an agency‐rating prediction model and default‐prediction models with various time horizons – we confirm the exclusive focus of agencies on the permanent component of credit quality and we model and quantify the agencies' prudent migration policy. A rating migration is triggered only when the rating predicted by the agency‐rating prediction model differs by at least a threshold level of 1.8 notch steps from the actual agency rating. If triggered, ratings are only partly adjusted by 70 per cent at the downside and 60 per cent at the upside. From a 1‐year point‐in‐time perspective, weighting temporary fluctuations in credit quality, the through‐the‐cycle methodology lowers the rating‐migration probability by a factor of 3.5. Both aspects of the through‐the‐cycle methodology contribute equally to this factor. The partial adjustment of ratings lowers the rating‐reversal probabilities on short term and introduces rating drift, the known serial correlation in agency‐rating migrations.     

Effects of the New Basel Capital Accord on Bank Capital Requirements for SMEs

Using data from three countries (US, Italy and Australia) and surveying related studies from several other countries in Europe, we investigate the effects of the New Basel Capital Accord on bank capital requirements for small and medium sized enterprises (SMEs). We find that, for all the countries, banks will have significant benefits, in terms of lower capital requirements, when considering small and medium sized firms as retail customers. But they will be obliged to use the Advanced IRB approach and to manage them on a pooled basis. For SMEs as corporate, however, capital requirements will be slightly greater than under the existing Basel I Capital Accord. We believe that most eligible banks will use a blended approach (considering some SMEs as retail and some as corporate). Through a breakeven analysis, we find that for all of our countries, banking organizations will be obliged to classify as retail at least 20% of their SME portfolio in order to maintain the current capital requirement (8%). JEL classification: G21, G28     

The Equity Performance of Firms Emerging from Bankruptcy

This study assesses the stock return performance of 131 firms emerging from Chapter 11. Using differing estimates of expected returns, we consistently find evidence of large, positive excess returns in 200 days of returns following emergence. We also examine the reaction of our sample firms' equity returns to their earnings announcements after emergence from Chapter 11. The positive and significant reactions suggest that our results are driven by the market's expectational errors, not mismeasurement of risk. The results provide an interesting contrast, but not a contradiction, to previous work that has documented poor operating performance for firms emerging from Chapter 11.     

艾滋病、全球化和人的安全

艾滋病问题与全球化是互为因果的关系,它的泛滥源于当今社会存在的诸多不平等与不公正问题,虽然其紧迫性并未像气候变暖或金融危机等全球化问题那么显著,但艾滋病问题依然是理解全球化的多重含义以及当今世界政治、社会、经济和文化权力运作方式的一个重要视角。美国的艾滋病救助政策体现了艾滋病问题所具有的安全含义,但它到底在多大程度上是出于利他主义的考虑,令人值得怀疑。自2000年艾滋病问题成为联合国安理会的议题以来,人们开始重新思考它对传统安全观所带来的冲击,虽然没有经验证据表明艾滋病问题助长了一国国内的冲突,但艾滋病加速恶化与国内的冲突现状密切相关。作者认为,对于艾滋病疫情的预防与应对,国际援助固然重要,但各国政府必须把自身资源投放到艾滋病的综合性预防、护理以及支持项目当中。     

Identifying employment-creating sectors in South Africa: the role of services industries

This paper explores scenarios for employment creation, with an emphasis on services. It considers whether the government's current policies for the formal services sector will achieve its 2014 target of halving unemployment. New employment has mainly been found in the formal and non-formal services, and future employment will probably come from such sectors as business services, trade, finance and tourism. As at 2004, about 480 000 new jobs were needed annually to halve unemployment from 26.2 per cent to 13 per cent by 2014. This would require at least twice the average annual job creation since 1994. Two scenarios are considered: the first under current conditions with similar rates of growth; the second with substantial improvements in policy, especially the promotion of trade in services. The first scenario leaves the economy with the same rate of unemployment in 2014. The second sees a reduction in unemployment of 20 per cent.     

Managing Credit Risk: A Challenge for the New Millennium

The importance of credit–risk management has never been more important with the current high default rates and bankruptcies; but, there was heightened interest even before the current scenario. Indeed, in 1999, at the end of the benign credit cycle, banks, regulators, and financial market practitioners were spending considerable time on this subject due to:
(1) Increased emphasis on sophisticated risk management techniques in a changing regulatory environment – mainly revisions to the so–called 'Basel Accord'
(2) Refinements in credit–scoring techniques
(3) Establishment of relatively large, relevant data bases on defaults, recoveries and credit migrations
(4) Treatment of bank loans as securities
(5) Development of 'offensive' credit–risk mitigation techniques such as securitizations, credit derivatives and credit insurance products
(6) Portfolio management techniques for credit assets.
(J.E.L.: G14, G21, G33).