This paper questions traditional approaches for testing the day-of-the-week effect on stock returns. We propose an alternative approach based on the closure test principle introduced by Marcus, Peritz and Gabriel (1976), which has become very popular in Biometrics and Medical Statistics. We test...

Since the 1960s hydrocarbons like crude oil and natural gas have been the most important energy source to fuel the world economy. Despite high recent growth rates for renewable energies, hydro- carbons are expected to be a dominant source of energy for several decades to come. In the last 20...