Political risk, one of the most significant uncertainty shocks, affects firms' future attitudes toward risks and plays a crucial role in their decision making. A stock price crash risk is a classical topic in financial markets; therefore, this paper probes the relationship between firm-level...

This study investigates the determinants of trading activity in the U.S. corporate bond market, focusing on the effects of Seasonal Affective Disorder (SAD) and macroeconomic announcements. Employing the General-to-Specific (Gets) Autometrics methodology, we identify distinct behavioral...

A new methodology for testing and dating economic bubbles based on a sign test with recursive median adjustment is presented. The methodology, originally proposed by Soo and Shin (2001) to detect random walks, is well-suited, theoretically, to deal with the many features of high-frequency...

El proceso de desregulación del sector eléctrico en la Unión Europea generó acciones estratégicas de parte de las empresas del sector que han llevado al reordenamiento de su mercado de energía eléctrica. Una serie de fusiones y adquisiciones ocurrieron a raíz de ese proceso. Este trabajo...

La Aplicación de Modelos EGARCH a la prueba del CAPM párr Colombia permite concluir Que Este sí da Bajo conditions de Alta volatilidad Y Que Se Puede utilizar Como Herramienta para el Análisis Financiero y las Proyecciones de Rentabilidad de Activos Financieros y reales. Igualmente, los...

Financial basics and intuition stresses the importance of investment horizon for risk management and asset allocation. However, the beta parameter of the Capital Asset Pricing Model (CAPM) is invariant to the holding period. Such contradiction is due to the assumption of long-term independence...

ResumenEl objetivo de este artículo es determinar la existencia del "efecto día de semana" en las bolsas de valores de seis países latinoamericanos, Brasil, Chile, Colombia, México, Argentina y Perú, durante el periodo comprendido entre 1993 y 2007. Para ello se analizan los diferentes...

Resumen: La teoría de precios por arbitraje establece que el retorno esperado de un portafolio de activos está relacionado con factores que caracterizan la economía y se puede asociar a variables macroeconómicas. En este estudio se realiza una contrastación empírica de la teoría de...

This paper explores the quadratic variation (QV) as an alternative measure to the bid-ask spread in limit order markets when observed at high resolution. Although the spread cannot be precisely estimated because of microstructure noise, the QV of the price series, consisting of the transaction...

This study investigates the time-varying frequency of spillovers between European stock markets and oil during the COVID-19 pandemic and the Russia-Ukraine war. Using the spillover index by Diebold & Yilmaz, 2012 and Baruník & Křehlík, 2018, we analyze high-frequency data at a 5-min interval...