Open Access
Spillover dynamics effects between risk-neutral equity and treasury volatilities
(Springer, 2022) González Urteaga, Ana; Nieto, Belén; Rubio, Gonzalo; Enpresen Kudeaketa; Institute for Advanced Research in Business and Economics - INARBE; Gestión de Empresas; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Macro-finance asset pricing models provide a rationale for connectedness dynamics between equity and Treasury risk-neutral volatilities. In this paper, we study the total and directional connectedness, in the sense of spillover effects, between risk-neutral volatilities from the equity and Treasury markets. In addition, we analyze the economic and monetary drivers of connectedness dynamics. Most of the time, but especially during bad economic times, we find significant net spillovers from Treasury to equity risk-neutral volatility. The spillover channel between risk-neutral volatilities arises mainly through the government fixed income market.
Open Access
Further empirical evidence on stochastic volatility models with jumps in returns
(Elsevier España, S.L., 2012) González Urteaga, Ana; Gestión de Empresas; Enpresen Kudeaketa
Using the Efficient Method of Moments we estimate a continuous time diffusion for the stochastic volatility of some international stock market indices that allows for possible jumps in returns. These jumps are needed for a sensible characterization of the dynamics of the distribution of returns, even under stochastic volatility. Although the stochastic volatility model with jumps in returns tends to exaggerate the negative skewness relative to the sample moments, the inclusion of jumps strongly improves the ability of the model to replicate sample kurtosis. This contrasts with the failure of the pure stochastic volatility model in generating high enough kurtosis. Our results extend the limited available evidence from the U.S. market to several European stock market indices.
Open Access
Lagged accuracy in credit-risk measures
(Elsevier, 2022) Abinzano Guillén, María Isabel; González Urteaga, Ana; Muga Caperos, Luis Fernando; Sánchez Alegría, Santiago; Institute for Advanced Research in Business and Economics - INARBE
This paper analyzes the magnitude (accuracy) and length (time) of the lag in the incorporation of new information in different measures of credit risk. The results, for US firms, show a lag for Altman’s Z accounting measure and credit rating. In contrast, market-based credit-risk measures such as CDSs and the Black-Scholes-Merton model show no lag. This paper also analyzes the determinants of the lags found showing the importance of the informativeness of CDSs in reducing the lag for all types of default events, and a negative relationship between accounting manipulation and the lag of Altman’s Z for severe default events.
Open Access
Performance of default-risk measures: the sample matters
(Elsevier, 2020) Abinzano Guillén, María Isabel; González Urteaga, Ana; Muga Caperos, Luis Fernando; Sánchez Alegría, Santiago; Enpresen Kudeaketa; Institute for Advanced Research in Business and Economics - INARBE; Gestión de Empresas; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa; Gobierno de Navarra / Nafarroako Gobernua, PI017-PI039 CORRAL
This paper examines the predictive power of the main default-risk measures used by both academics and practitioners, including accounting measures, market-price-based measures and the credit rating. Given that some measures are unavailable for some firm types, pair wise comparisons are made between the various measures, using same-size samples in every case. The results show the superiority of market-based measures, although their accuracy depends on the prediction horizon and the type of default events considered. Furthermore, examination shows that the effect of within-sample firm characteristics varies across measures. The overall finding is of poorer goodness of fit for accurate default prediction in samples characterised by high book-to-market ratios and/or high asset intangibility, both of which suggest pricing difficulty. In the case of large-firm samples, goodness of fit is in general negatively related to size, possibly because of the 'too-big-to-fail' effect.
Open Access
The nexus between sovereign CDS and stock market volatility: new evidence
(MDPI, 2021) Ballester Miquel, Laura; Escrivá, Ana Mónica; González Urteaga, Ana; Enpresen Kudeaketa; Institute for Advanced Research in Business and Economics - INARBE; Gestión de Empresas
This paper extends the studies published to date by performing an analysis of the causal relationships between sovereign CDS spreads and the estimated conditional volatility of stock indices. This estimation is performed using a vector autoregressive model (VAR) and dynamically applying the Granger causality test. The conditional volatility of the stock market has been obtained through various univariate GARCH models. This methodology allows us to study the information transmissions, both unidirectional and bidirectional, that occur between CDS spreads and stock volatility between 2004 and 2020. We conclude that CDS spread returns cause (in the Granger sense) conditional stock volatility, mainly in Europe and during the sovereign debt crisis. This transmission dynamic breaks down during the COVID-19 period, where there are high bidirectional relationships between the two markets.
Open Access
The cross-sectional variation of volatility risk premia
(Elsevier, 2016) González Urteaga, Ana; Rubio Irigoyen, Gonzalo; Gestión de Empresas; Enpresen Kudeaketa
This paper analyzes the determinants of the cross-sectional variation of the average volatility risk premia for a representative set of portfolios sorted by volatility risk premium beta. The market volatility risk premium and, especially, the default premium are shown to be key risk factors in the cross-sectional variation of average volatility risk premium payoffs. The cross-sectional variation of risk premia seems to reflect a very different behavior of the underlying components of our sample portfolios with respect to credit or financial stress that generates a significant dispersion of the volatility swap pricing of these securities.
Open Access
Future directions in international financial integration research. A crowdsourced perspective
(Elsevier, 2018) Lucey, Brian M.; Vigne, Samuel A.; Ballester Miquel, Laura; Barbopoulos, Leonidas; Brzeszczynski, Janusz; Carchano, Óscar; Dimic, Nebojsa; Fernández, Viviana; Gogolin, Fabian; González Urteaga, Ana; Gestión de Empresas; Enpresen Kudeaketa
This paper is the result of a crowdsourced effort to surface perspectives on the present and future direction of international finance. The authors are researchers in financial economics who attended the INFINITI 2017 conference in the University of Valencia in June 2017 and who participated in the crowdsourcing via the Overleaf platform. This paper highlights the actual state of scientific knowledge in a multitude of fields in finance and proposes different directions for future research.
Open Access
Enhancing learning in the finance classroom
(Universidad Politécnica de Valencia., 2022) Abinzano Guillén, María Isabel; Corredor Casado, María Pilar; Río Solano, María Cristina del; Ferrer Zubiate, Elena; González Urteaga, Ana; Mansilla Fernández, José Manuel; Martínez García, Beatriz; Muga Caperos, Luis Fernando; Gestión de Empresas; Enpresen Kudeaketa
This paper aims to describe a teaching-learning experience based on ProjectBased Learning (PBL). This experience is part of an educational innovation project devoted to transforming finance classes in various facets of financial advice. Specifically, the article focuses on the transformation process of a subject that studies financial markets and the assets traded in them. Based on this experience, the classroom becomes a financial consulting firm that advises investors on how to invest their capital. The results show us a remarkable active dedication of the students to the course, improved knowledge, and marks. In addition, the development of skills and values such as teamwork, autonomy, solidarity, equality, and professional skills are elements that encourage us to continue along this line.
Open Access
Bank fragility and contagion: evidence from the bank CDS market
(Elsevier, 2016) Ballester Miquel, Laura; Casu, Barbara; González Urteaga, Ana; Gestión de Empresas; Enpresen Kudeaketa
Understanding how contagion works among financial institutions is a top priority for regulators and policy makers who aim to foster financial stability and to prevent financial crises. Using bank credit default swap (CDS) data, we provide a framework for the evaluation of contagion among banks in different countries and regions during a period of prolonged financial distress. We measure contagion in terms of return spillovers, following a Generalized VAR (GVAR) approach. In addition, we propose an innovative framework to distinguish between two types of contagion: systematic (linked to global factors), and idiosyncratic (linked to bank specific factors). We find evidence of both types of contagion, although the spillover dynamics changed over time. Our measure of systematic contagion is always greater than the idiosyncratic component, thus highlighting the importance of common factors in the propagation of risk spillovers. This indicates that international linkages among banking markets are central to the transmission of shocks.
Open Access
An empirical investigation of the effect of credit ratings on sovereign credit risk
(Universidad de Castilla La Mancha, 2015) Ballester Miquel, Laura; González Urteaga, Ana; Gestión de Empresas; Enpresen Kudeaketa
We investigate the cross-border spillover effects of credit rating events for sovereign CDS Latin American emerging economies during 2004-2014. The article extends the previous literature measuring the effect in terms of change in contagion, which we quantify using the novel GVAR methodology. We find that CDS of boarding markets anticipate both positive and to a greater extent negative events that occurs in a given country. Alternatively, only upgrades display a significant spillover effect the days after the event. Therefore, CDS already reflect the information before the positive or negative rating announcement occurs. However, only upgrades contain new information that have a significant impact on the CDS markets of other sovereigns.