This study investigates the efficiency dynamics of spot and futures electricity markets across a sample of European countries, while taking into account the impact of market couplings. The analysis employs three distinct efficiency measures, namely entropy, Hurst measure, and fractal dimension,...

There is an ongoing trend of deregulation and integration of electricity markets in Europe and North America. This change in market structure has naturally affected the interaction between agents and has contributed to an increasing commoditization of electric power. This paper focuses on one...