Search

This paper examines the effect of sovereign risk on bond duration. We compare the sovereign risk-adjusted duration for U.S. dollar-denominated Asian sovereign bonds with their Macaulay duration for both investment grade bonds and speculative grade bonds. We find that the sovereign risk-adjusted duration is significantly shorter than its Macaulay counterpart for all bonds, regardless of their bond rating and their maturity. Further, the “shortening” effect of sovereign risk on duration gets stronger as bond rating deteriorates and in recessionary conditions. Our findings provide strong support for the importance of adjusting for sovereign risk when bond portfolio managers apply the popular duration measure to hedge interest rate risk.

This paper examines the effects of default risk, call risk, and their interactions on bond duration. We find that call risk decreases durations of default-free bonds, while default risk alone generally decreases durations for risky bonds with only a few exceptions. The joint effect of default and call risk always results in shorter durations for corporate bonds. Controlling for the effect of default risk, call risk has a negative effect on duration, which diminishes as bond ratings decline. Finally, the effect of call risk on duration depends on bond characteristics. Empirical evidence shows that the effect of call risk is smaller for discount bonds and for deep-discount fallen angels.

In this paper, we argue that accounting curricula should be expanded to cover the topic of real options. Our argument relies on reference to the [American Institute of Certified Public Accountants (AICPA) (1999) ( Core Competency Framework , New York, NY: AICPA Accessed 21.08.08], the framework for curriculum change espoused by [Arya, A., Fellingham, J. C., & Schroeder, D. A. (2003). An academic curriculum proposal. Issues in Accounting Education , 18 (1) 29–35], a global study of core competencies for management accountants [International Federation of Accountants (IFAC), (2002). Competency profiles for management accounting practice and practitioners. New York, NY: International Federation of Accountants], a global capital-budgeting “best practices statement” [International Federation of Accountants (IFAC), (2008). International good practice guidance: Project appraisal using discounted cash flow . New York, NY: International Federation of Accountants], current specifications of the CMA exam [Institute of Management Accountants (IMA), (2008). Certified management accountant (CMA) learning outcome statements (effective 07/01/04), updated 07/2008 . Accessed 29.10.08.], and elements of the Albrecht and Sack report [Albrecht, W. S., & Sack, R. J. (2000). Accounting education: Charting the course through a perilous future . Accounting education series, Vol. 16. Sarasota, FL: American Accounting Association]. We make special reference to the linkage of the topic of real options to two broad educational goals: decision-modeling and risk analysis. Existing resources that accounting faculty can use to incorporate real options into the curriculum are limited. As a response, we provide an extended example that accounting educators can use to cover the topic of real options. This example uses a set of binomial trees (one for cash inflows and another for cash outflows). The step-by-step approach presented in this paper allows students without a technical/mathematical background to extend discounted-cash-flow (DCF) decision models (e.g., NPV) to incorporate real options that are embedded in proposed investment projects.

Using a popular three-factor term structure model that accounts for the correlation between default and interest rates to fit corporate bond yields, we uncover missing factors in the model. The principal component analysis indicates that the model residuals of bonds across different ratings and maturities are driven by some common factors. Further analysis shows that residuals exhibit significant negative correlation with the concurrent and lagged monthly returns of S&P 500. Our results suggest that the term structure model of corporate bonds should incorporate aggregate economic factors in order to better explain the term structure of corporate bond yields.

Default correlation is a critical concept in risk management for fixed income investment, bank management, and insurance industry, working capital management, among many. We extend the Leland-Toft term structure model into a two-firm environment and predict the default correlation between two firms by directly simulating the calibrate model based on the observed equity data (1990-2010) for various ratings. Using our empirical default correlation estimation as the benchmark, our investigation sheds more light on the structural approach in predicting default correlation. The results show that our approach outperforms the previous Zhou’s model, thereby our approach is not only theoretical improvement, but also has an empirical advantage.

We examine effects of sovereign risk on bond duration in European and Latin American sovereign bond markets over the period 1996-2011. We compare the sovereign risk-adjusted duration for U.S. dollar-denominated sovereign bonds with their Macaulay duration for both investment- and speculative-grade bonds. We find that the sovereign risk-adjusted duration is significantly shorter than its Macaulay counterpart for all bonds, regardless of the bond rating and maturity. Further, the “shortening” effect of sovereign risk on duration is generally stronger among bonds of lower ratings. During the recent global financial crisis, the “shortening” effect was dampened for quality sovereign bonds. But the sovereign risk effect on duration was intensified for BBB and BB rated bonds, reflecting investors’ perception of increasing likelihood of default by issuing nations. Results are robust when CDS prices are used as a proxy for changes in sovereign risk. Moreover, the regional analysis shows that sovereign risk shortens duration much less for sovereign bonds issued by the EU and Latin American countries than for non-EU member counterparts. Our study demonstrates the importance of, and provides a practical guide for, bond portfolio managers to account for sovereign risk in managing interest rate risk exposure in their investments.