Sovereign Bond Yields Research Articles

Russia–Ukraine war and the cost of borrowing in the West African Economic and Monetary Union sovereign debt market

AbstractThis paper contributes to the emerging literature on the economic impacts of the Russia–Ukraine war by estimating the effects of that war on FCFA‐denominated sovereign bond yields and spreads for the West African Economic and Monetary Union (WAEMU) countries. Using ordinary least squares regressions on monthly panel data from January 2020 to December 2022, we found three key results. First, the Russia–Ukraine war significantly increased long‐term government bonds but had no impact on short‐term sovereign bond yields. Second, the Russia–Ukraine war raised sovereign bond spreads in WAEMU countries. These results suggest that WAEMU countries may consider reducing sovereign long‐term bond issuances and exploiting alternative financing sources, such as concessional financing, until the war and its corollary of global economic and financial imbalances are resolved. Finally, we found that the Central Bank of West African States's policy rate hikes increase governments' borrowing costs. Given this impact, we recommend complementing monetary policy with nonmonetary and fiscal policy measures to ease inflationary pressure from the Russia–Ukraine war. This approach may help mitigate the upward pressure driven by monetary policy tightening on sovereign borrowing costs in the WAEMU government securities markets.

Investors reward countries for participating in climate agreements

International climate agreements are one of the best-known approaches to coordinating climate actions among governments but face a free-rider problem, where individual governments lack sufficient incentives to reduce emissions. This study examines the role of investors in providing rewards to governments through sovereign bond yields to encourage climate cooperation and reduce emission intensity. Using a difference-in-differences method, this study examines how sovereign bond yields change around the Kyoto Protocol and the Paris Agreement. The findings show that investors reward governments committed to reducing greenhouse gas emissions with a 4 to 5 basis point decrease in sovereign bond yields. This suggests that investors better compensate countries making significant commitments to climate agreements, helping mitigate the free-rider problem and encouraging effective climate action.

Anatomy of sovereign yield behaviour using textual news

While the relationship between the information content of macroeconomic news and the behavior of asset prices has been studied extensively in the finance literature, this study provides a new perspective by examining the impact of textual news on sovereign bond yield spreads in an emerging country. This study used bond market news published in newspapers to develop the sentiment scores using a modified word dictionary to unravel news characteristics. A nonlinear regime-shifting regression model of Markov Regime Shifting (MRS) is used to understand the impact of news on sovereign bond yield spreads. The paper results show that textual news sentiment may explain both steepening and flattening of the yield curve, with monetary and fiscal policy news having the most significant impact on yield spread behaviour. The results hold key implications for policymakers, debt fund managers and other market participants.

Balance sheet expansionary policies in the euro area: Macroeconomic impacts and a vulnerable versus non-vulnerable comparison

This paper investigates the impacts and heterogeneity of the ECB's large-scale asset purchasing programs of sovereign securities on real GDP, inflation, long-term sovereign bond yields, systemic stress, and the unemployment rate. A structural Bayesian VAR model with six endogenous variables was estimated for 11 euro area countries over the period 2012:M1 to 2023:M12. To provide robustness to the results, a structural panel BVAR model is estimated, enabling a straightforward comparison of impulse responses of vulnerable and non-vulnerable countries. The results suggest that the magnitudes of impulse responses were more favorable in countries that were more economically and financially vulnerable. These findings underscore that financial and economic distress was a source of heterogeneity in the responses to large scale asset purchases within the euro area.

Global and local information efficiency: An examination of samuelson's dictum

The global version of Samuelson's Dictum is the conjecture that there is more informational inefficiency for global information than for country-specific information. Consistent with this conjecture, we find that sovereign CDS spreads can predict future sovereign bond yields of their underlying countries and this predictive power arises almost entirely from CDS spread's global—rather than country-specific—component. Noting the striking similarities between the evidence in stock and sovereign bond markets, we examine the underlying mechanism for the results in both markets in parallel and find further similarities across these two markets. In both cases, information appears to flow in one direction: from the sovereign CDS market to stock and sovereign bond markets and not the other way around. Information transmission occurs mostly during the days surrounding announcements of credit-rating or outlook changes, especially downgrades. These results are broadly consistent with a setup in which information acquisition and processing is costly.

Buying into new ideas: the ECB’s evolving justification of unlimited liquidity

Abstract In 2012, Draghi put an end to rising euro area sovereign bond yield spreads by resolving to do ‘whatever it takes’. The crisis rhetoric and institutional practices of unlimited liquidity have since become commonplace, as countermeasures to recent market turmoil show. This article sets out to explain how and why ‘unlimited liquidity’ ideas moved to the ECB’s center of economic analysis during the euro crisis. Previous work fails to decipher that the ideational shift was highly anomalous when viewed against German ordoliberalism or scholarly support for ‘expansionary austerity’. Addressing this relative neglect in other accounts, we draw on qualitative text analysis and expert interviews to argue that this shift was due to norm entrepreneurs who capitalized on the uncertainty of the crisis. We employ constructivist arguments to identify four scoping conditions that account for the ascendance of ‘unlimited liquidity’: an indicative reference, credibility, institutional positioning and—as an extension to the literature—intellectual sensitivity. Our analysis suggests that the euro crisis changed economic ideas, and fundamentally remodels the constructivist framework for studying monetary policy in crisis times.

Whatever-it-takes policymaking during the pandemic

Central banks across the globe introduced large-scale asset purchase programs to address the unprecedented circumstances experienced during the pandemic. Many of these programs were announced as open-ended to shock-and-awe market participants and restore confidence in financial markets. This paper examines whether these whatever-it-takes announcements had larger effects than announcements with explicit limits on scale. We use a narrative approach to categorize announcements made by twenty-two central banks, and event study, propensity-score-matching, and local projection methods to measure the short-term effects of policy announcements on exchange rates and sovereign bond yields. We find that on average a central bank’s first whatever-it-takes announcement lowers 10-year bond yields by an additional 47 basis points relative to size-limited announcements, suggesting that communication of potential policy scale matters. Our results for yields hold for both advanced and emerging economies, while exchange rates go in opposing directions, muting their response when we group all countries together.

ANALYSIS OF THE EXCHANGE RATE LEVEL OF EMERGING MARKET COUNTRIES DURING THE COVID-19 OUTBREAK

This study investigates the influences of the COVID-19 Pandemic on exchange rate level in two emerging countries, India and Indonesia, using ARDL Model with time series data from 2020 to 2022. The research examines how the exchange rate level of these two countries changed during the pandemic, and how the factors affected their sovereign bond yields and capital flows. Furthermore, this study compares and contrasts the exchange rate performance of these two countries with different macroeconomic vulnerabilities, such as Interest Rate Differential, Inflation Rate Differential, Industrial Production Index, and Stock Market. The findings reveal that the interest rate differential is the most significant factor influencing exchange rates for both countries in the short run and long run, while the inflation rate differential and the industrial production index are also important for Indonesia. Overall, these two countries should adopt monetary and fiscal policies that maintain a competitive interest rate level, control the inflation rate, stimulate the industrial production, and enhance the transparency and the efficiency of their stock markets. This paper provides policy implications and recommendations for financial stability in the post-pandemic.

Modeling Extreme Events: Time-Varying Extreme Tail Shape

We propose a dynamic semiparametric framework to study time variation in tail parameters. The framework builds on the Generalized Pareto Distribution (GPD) for modeling peaks over thresholds as in Extreme Value Theory, but casts the model in a conditional framework to allow for time-variation in the tail parameters. We establish parameter regions for stationarity and ergodicity and for the existence of (unconditional) moments and consider conditions for consistency and asymptotic normality of the maximum likelihood estimator for the deterministic parameters in the model. Two empirical datasets illustrate the usefulness of the approach: daily U.S. equity returns, and 15-min euro area sovereign bond yield changes.

The impact of news on South African sovereign bond yields

ABSTRACT A reverse event study approach was used to investigate how the South African sovereign bond yield curve reacts to headline news. The change in daily yields, calculated as the difference between the natural log of zero-coupon yields on consecutive business days, were used in the analysis. Dates of abnormal daily yield changes were identified using GARCH models. News items for the sample period were classified into categories using supervised machine learning. A regression model was fitted to determine the link between the abnormal yield changes and the news categories. The results indicated that, for abnormal increases in yield (negative news), political news had an impact on all nodes. For abnormal decreases in yield (positive news), economic news had the greatest impact on the 10-year and political news on the 15- and 20-year nodes of the yield curve.

Co-movement and global factors in sovereign bond yields

Abstract We study the co-movement in international zero-coupon government bond yields using a recently proposed methodology by Choi et al. (2018) and Choi et al. (2021) for the estimation of multilevel factor models. We employ a readily available non-proprietary dataset coupled with open-source code which facilitates reproduction of the results but also comparability with the existing bibliography. The ten countries dataset is cross-sectionally expanded to eleven countries with newly constructed data series on the term structure of Greek constant-maturity, government zero-coupon bond rates. We find that the country pair US-Germany is most suitable as an initial candidate for global factor estimation. We confirm that three global factors account for most of the variation in zero-coupon bond yields leaving a small proportion to be (contemporaneously) explained by local factors. Global inflation and global real activity are related to the global level and slope factors. The third global factor, “curvature,” is strongly related to economic/financial uncertainty linked to systemic risk stemming from the US financial markets. JEL classification numbers: C10, E43, G12, G15. Keywords: Sovereign bonds; Yield curve; Term structure; Multilevel factor model; Global factors; Local factors.

Detecting business cycles for Hungarian leading and coincident indicators with a Markov switching dynamic model to improve sustainability in economic growth

This paper applies the hidden Markov switching dynamic regression (MSDR) model to estimate transition probabilities of the Hungarian GDP between recessionary and expansionary periods. The transition probabilities are then compared to the OECD Hungarian binary business cycle indicator to assess the predictive power of the model. The paper proposes a linear model with a mean and a homoscedastic component. The level of symmetricity between the GDP and business cycles is explained by the panel data variables (Unemployment rate, IPI index, Inflation, BUX year-on-year change, and 10-3 Year sovereign bond yield spreads). It is assumed in this paper that by extending the model to encompass an exogenous variable listed in the panel data, essentially making the model bivariate, the maximum likelihood function would capture the business cycle more accurately. The results show that by plugging the unemployment rate as the exogenous variable in the regression, our model’s accuracy is 70%.

Do green financial policies offset the climate transition risk penalty imposed on long-term sovereign bond yields?

Asset valuations in high-carbon sectors face significant corrections due to climate risks. This paper specifically analyses whether markets impose a penalty on long-term sovereign bonds issued by countries facing higher climate-related transition risk while rewarding those that have implemented green financial policies to mitigate these risks. We find that higher carbon dioxide emissions and a lower sustainable development score (both proxies for transition risks) lead to an increase in long-term sovereign bond yields. However, the presence of green financial policies appears to offset this climate transition risk premium.

Modelling asymmetric sovereign bond yield volatility with univariate GARCH models: Evidence from India

Does Indian sovereign yield volatility reflect economic fundamentals, or whether it is a self-generated force flowing through markets with little connection to such fundamentals? To answer the question, this research explores the volatility dynamics and measures the persistence of shocks to the sovereign bond yield volatility in India from 1 January 2016, to 18 May 2022, using a family of GARCH models. The empirical results indicate the high volatility persistence across the maturity spectrum in the sample period. However, upon decomposing the markets into bull and bear phases, our results support the existence of weak volatility persistence and rapid mean reversion in the bear market. This shows that the economic response policies implemented by the government during the pandemic, including fiscal measures, have a restraining effect on sovereign yield volatility. For a positive γ, the results suggest the possibility of a “leverage effect” that is markedly different from that frequently seen in stock markets. Results further indicate that the fluctuations in Indian sovereign yields cannot be dissociated from inflation and money market volatility. Our findings herein provide valuable information and implications for policymakers and financial investors worldwide.

Geopolitical Risks and Yield Dynamics in the Australian Sovereign Bond Market

Geopolitical risks and shocks such as military conflicts, terrorist attacks, and war tensions are known to cause significant economic downturns. The main purpose of this paper is to determine the dynamics between Australian sovereign bond yields and geopolitical risk. This is achieved by employing a quantile regression analysis. The findings of this study indicate that the impact of geopolitical risk on Australian sovereign yield dynamics is asymmetrical. Furthermore, an increase in geopolitical risk only impacts short-term yields at extreme regimes. However, the impact is, by and large, insignificant. On the other hand, an increase in geopolitical risk does have a statistically significant positive impact on medium- and long-term yields across most quantiles. Lastly, an increase in geopolitical risk tends to result in a steeper yield curve at the belly of the curve but causes the yield curve to flatten at the long end. This study is the first study that holistically examines the dynamics between geopolitical risk and Australian sovereign bond yields. The study thereby contributes to the body of knowledge on Australian bond yields, specifically, and adds to the sparse body of knowledge on the dynamics between geopolitical risk and sovereign bond yields. The findings of this study have implications for monetary policy makers, given that shifts in sovereign bond yields could impact all three core mandates of the Australian Reserve Bank. Furthermore, changes in the slope of the yieldcurve could be used by monetary policy makers to pre-empt changes in future economic growth. The results of this study also relate to fiscal policy formulation, given that yields directly impact the cost of government borrowing. Lastly, portfolio managers could benefit from the results of this study, as these results provide information on the ability of Australian sovereign bonds to hedge against geopolitical risk.

Sovereign bonds and flight to safety: Implications of the COVID-19 crisis for sovereign debt markets in the G-7 and E-7 economies

This study investigates the implications of the COVID-19 pandemic for sovereign debt in the G-7 and E-7 economies and explores the notion of sovereign bonds as a safe haven. Using a set of panel regression and dynamic connectedness TVP-VAR approaches, our results reveal that the impact of COVID-19 global case numbers on sovereign bonds has been contingent on the level of the country's financial and economic development. More precisely, our findings suggest that G-7 countries, where economic development is typically higher, have seen a negative effect of the COVID-19 pandemic on sovereign bond yield: sovereign 10-year bond yields declined as the number of COVID-19 global confirmed cases increased in G-7 countries. However, in E-7 countries, where economic growth and development are typically lower, sovereign bond yields responded positively to the initial increase in COVID-19 global confirmed case numbers, but this positive effect is not statistically significant. We also find that the G-7 and E-7 economies have a strong time-varying connectedness in relation to their bond markets and this effect is more pronounced in G-7 economies. Daily Infectious Disease Equity Market Volatility is likely to be the strongest predictor of total connectedness. Concomitantly, we shed new light on the predictive power of the number of COVID-19 confirmed cases and deaths, and the Daily Infectious Disease Equity Market Volatility Tracker on the interdependence of these sovereign bond markets. Overall, this paper highlights the heterogeneous effect of the COVID-19 pandemic on sovereign bond yields in G-7 and E-7 countries and the notion that the developed economies, with their developed sovereign bond markets, are still seen as a safe haven during times of crisis.

A global monetary policy factor in sovereign bond yields

A global monetary policy factor in sovereign bond yields

Fiscal Decentralization and Nature-Based Adaptation Financing: A New Perspective on Sovereign Bond Yields

Fiscal Decentralization and Nature-Based Adaptation Financing: A New Perspective on Sovereign Bond Yields

Modelling Asymmetric Sovereign Bond Yield Volatility with Univariate GARCH Models: Evidence from India

Modelling Asymmetric Sovereign Bond Yield Volatility with Univariate GARCH Models: Evidence from India

Euro Area Sovereign Bond Yields during the Covid-19 Pandemic: What Do They Tell Us?

Euro Area Sovereign Bond Yields during the Covid-19 Pandemic: What Do They Tell Us?