Covered interest rate parity assumes that there is no risk premium on the hedged returns on currencies. However, empirical evidence indicates that risk premiums are not identically zero, and this is referred to as the forward premium puzzle. We show that there exist market regimes, within which...

Purpose – This paper aims to extend the Fama and French (FF) three‐factor model in studying time‐varying risk premiums of Sector Select Exchange Traded Funds (ETFs) under a Markov regime‐switching framework. Design/methodology/approach – First, the original FF model is augmented to...

Purpose – This paper aims to extend the Fama and French (FF) three-factor model in studying time-varying risk premiums of Sector Select Exchange Traded Funds (ETFs) under a Markov regime-switching framework. Design/methodology/approach – First, the original FF model is augmented to include...

Purpose This paper aims to propose a novel design concept for a biomimetic dolphin-like underwater glider, which can offer the advantages of both robotic dolphins and underwater gliders to achieve high-maneuverability, high-speed and long-distance motions. Design/methodology/approach To testify...