No more discount under enhanced fair value hierarchy

We use an integrated approach to analyse the reasons behind the discount on the balance-sheet fair value of illiquid financial instruments held by European banks and classified into the Level 3 Fair Value hierarchy under IFRS 7. We believe that the potential sources of misalignment are (1) the lack of disclosure, (2) earnings management, and (3) the lack of liquidity. We show that the discount implicit in market values is linked to the lack of mandatory additional disclosure required by IFRS 7 and that this result supports the strong enforcement activity made by national authorities.     

古典屈学中屈原人格研究与现代屈学人格理论

自汉初迄清季,历代学者虽没有用“人格”一词来评论屈原,但对其人的性格、气质、能力、品行等多有阐发,并集中在忠君爱国的伦理道德层面。这些感发式的阐述,包含了“人格”的一些方面,是对屈原人格不自觉的局部揭示。以人格心理学理论观照,屈原赍志以殁,是历史必然条件下其人格合乎逻辑的推衍,是他对人生积极探索之后的必然选择。     

Commentary: The corporate structure of financial conglomerates

Commentary: The corporate structure of financial conglomerates     

Measuring and Optimizing Portfolio Credit Risk: A Copula‐based Approach*

In this work, we present a methodology for measuring and optimizing the credit risk of a loan portfolio taking into account the non‐normality of the credit loss distribution. In particular, we aim at modelling accurately joint default events for credit assets. In order to achieve this goal, we build the loss distribution of the loan portfolio by Monte Carlo simulation. The times until default of each obligor in portfolio are simulated following a copula‐based approach. In particular, we study four different types of dependence structure for the credit assets in portfolio: the Gaussian copula, the Student's t‐copula, the grouped t‐copula and the Clayton n‐copula (or Cook–Johnson copula). Our aim is to assess the impact of each type of copula on the value of different portfolio risk measures, such as expected loss, maximum loss, credit value at risk and expected shortfall. In addition, we want to verify whether and how the optimal portfolio composition may change utilizing various types of copula for describing the default dependence structure. In order to optimize portfolio credit risk, we minimize the conditional value at risk, a risk measure both relevant and tractable, by solving a simple linear programming problem subject to the traditional constraints of balance, portfolio expected return and trading. The outcomes, in terms of optimal portfolio compositions, obtained assuming different default dependence structures are compared with each other. The solution of the risk minimization problem may suggest us how to restructure the inefficient loan portfolios in order to obtain their best risk/return profile. In the absence of a developed secondary market for loans, we may follow the investment strategies indicated by the solution vector by utilizing credit default swaps.     

Dynamic economic analysis of marine pollution prevention technologies: An application to double hulls and electronic charts

Marine pollution associated with shipping accidents has resulted in a Congressional mandate for double hulls on tankers in U.S. waters. In this paper, we formulate a social planner's problem using optimal control theory to examine the relative cost-effectiveness of double hulls and alternative pollution prevention technologies, and the optimal installation strategy for such technologies. The model encompasses the costs and benefits associated with shipping operations, damage to the marine environment, and investment in each technology. A computer simulation of the model is used to evaluate investment strategies for two technological options: double hulls and electronic chart systems. Results indicate that electronic charts may be a far more cost-effective approach to marine pollution control.