Purpose: Investigation of the relation between firms' values and aviation fuel hedging activities via a dynamic panel data methodology for the major U.S. passenger airlines during the period 2002-2011. Design/methodology/approach: We use data from nine U.S. major passenger airlines representing...

Purpose: Investigation of the relation between firms’ values and aviation fuel hedging activities via a dynamic panel data methodology for the major U.S. passenger airlines during the period 2002-2011. Design/methodology/approach: We use data from nine U.S. major passenger airlines...

We present a new profitable trading and risk management strategy with transaction cost for an adaptive equally weighted portfolio. Moreover, we implement a rule-based expert system for the daily financial decision making process by using the power of spectral analysis. We use several key...