Because of the importance of the energy sector's development for the performance and stability of the economy, its analysis has become an intriguing branch of the economic sciences. For this study it should be tested the characteristics of each of the industries that comprise it, as well as make...

Because of the importance of the energy sector's development for the performance and stability of the economy, its analysis has become an intriguing branch of the economic sciences. For this study it should be tested the characteristics of each of the industries that comprise it, as well as make...

En 1970, E. Fama publicó un artículo sobre la teoría de los mercadosde capitales eficientes" que tuvo -y aún tiene- un impacto muy fuerteen finanzas. El artículo muestra que la teoría presentada por Fama notiene nada que ver con la eficiencia tal como la entienden los economistas.En...

The essay offers a new understanding of how financial markets work. The key departure from conventional theory is to recognize that investors do not invest directly in securities but through agents such as fund managers. Agents have better information and different objectives than their...

English Abstract: This study investigates the informational role of thin options markets, specifically the Spanish options market. Firstly, we examine the effect of options markets by analysing stock market reaction to earnings news, conditional on the availability of options markets. Secondly,...

Spanish Abstract: El presente trabajo tiene por objeto analizar el impacto que la incorporación de las empresas al Mercado Alternativo Bursátil (MAB) español ha supuesto sobre la formación de los precios de las acciones involucradas. Para ello, se ha construido una base de datos que incluye...

English Abstract: Since the onset of the pandemic, the equity market has experienced bouts of high volatility, with private investors’ use of derivatives for speculative purposes being cited as a relevant factor in some cases. This paper analyses two specific episodes: the revaluation of...

English Abstract: This practical paper recognizes the need for non-traded companies, most of them SMEs, (Small and Medium-size Enterprises), to have appropriate tools to address the definition and estimation of the cost of capital. This concept is critical to determine the feasibility of an...

Spanish Abstract: En este trabajo se plantea la necesidad de las empresas no transadas en bolsa, la mayoría de ellas, PYMEs, (Pequeñas y Medianas Empresas) de contar con herramientas apropiadas para abordar la definición y estimación del costo promedio ponderado de capital. Este concepto es...

La existencia de memoria de largo plazo en las series financieras implica que los retornos de un activo hoy pueden tener incidencia sobre los retornos futuros, incluso más allá del corto plazo. En presencia de dicha memoria el horizonte de inversión elegido puede resultar en diferentes...