The Skew Pattern of Implied Volatility in the DAX Index Options Market

This paper aims to analyze the reasons why insurance companies make the decision to hedge their corporate risk through derivatives, and to identify the variables that determine hedging volume in the context of the agency theory and maximization of firm value. The empirical study is based on data provided by 28 Spanish life insurers. Apart from being a pioneering work in the Spanish insurance industry, this paper also includes several variables that have not been taken into account in previous studies. The results indicate that hedging decision and volume are positively related to the company’s size, leverage and interest rate exposure. We also find that the type of product is important in the hedging decision. Finally, companies that use derivatives have a great return on assets that suggest a relationship between hedging decision and value creation.