The equity premium (also called market risk premium, equity risk premium, market premium and risk premium), is one of the most important, discussed but elusive parameters in finance. The term equity premium is used to designate four different concepts (although many times they are mixed):...

Principal component analysis of equity options on Dow-Jones firms reveals a strong factor structure. The first principal component explains 77% of the variation in the equity volatility level, 77% of the variation in the equity option skew, and 60% of the implied volatility term structure across...

En este documento se valoran varias emisiones de bonos bolsa (un tipo de bonos estructurados) emitidos en Espantilde;a. Estis instrumentos financieros son la combinacioacute;n de un bono y una o maacute;s opciones.I value several issues of 'bonos bolsa' issued in Spain. These instruments are the...

En este documento se muestra coacute;mo utilizar la simulacioacute;n para valorar opciones y otros instrumentos financieros. Tambieacute;n se muestra coacute;mo se ha de realizar la simulacioacute;n para, al valorar opciones, obtener el mismo resultado que con la foacute;rmula de Black y Scholes.MBA...

Equity options display a strong factor structure. The first principal components of the equity volatility levels, skews, and term structures explain a substantial fraction of the cross-sectional variation. Furthermore, these principal components are highly correlated with the S&P500 index option...

We develop a tractable dynamic model of an index option market maker with limited capital and characterize how option prices depend on inventory risk and market maker wealth. The risk averse market maker absorbs positive demand by end users and requires a more negative variance risk premium when...

We propose a novel factor model for option returns. Option exposures are estimated nonparametrically and factor risk premia can vary nonlinearly with states. The model is estimated using regressions, with minimal assumptions on factor and option return dynamics. Using index options, we...

We show that the three valuation methods (if used correctly) always yield the same result. The most striking result of this paper is that for a firm growing at a rate g, the Net Present Value of the tax shield due to interest payments (in the APV approach) must be calculated as follows: NPV OF...

Spanish convertible bonds are different from the American convertible bonds. First, the conversion price is not fixed in pesetas, but is defined as a percentage discount off the average share price over a number of days before conversion. Second, the conversion option can be exercised only at a...

Spanish Abstract: Este documento contiene 210 errores cometidos en distintas valoraciones de empresas.La mayor parte de las valoraciones proceden de arbitrajes, procesos judiciales, compras y ventas de empresas a los que el autor ha tenido acceso. Casi todos los nombres de personas, empresas y...