Purpose - The purpose of this paper is to study the efficiency of different oil and gas markets. Most previous studies examined the issue using low frequency date sampled at monthly, weekly, or daily frequencies. In this study, 30-minute intraday data are used to explore efficiency in energy...

Purpose - This study investigates the role of cryptocurrencies in enhancing the performance of portfoliosconstructed from traditional asset classes. Using a long sample period covering not only the large valueincreases but also the dramatic declines during the beginning of 2018, the purpose of...

Purpose - As cryptocurrencies continue to gain viability as an asset class, institutional investors and publicly traded firms have started taking investment positions in digital currencies. What firms may not be considering, however, is the effect these assets may have on their risk profiles....

We investigate the integration of oil spot and futures markets using matched, intraday data to avoid non-synchronous trading issues. Our evidence indicates highly integrated spot and futures markets. Economic shocks that arise in spot markets are quickly transmitted to the futures markets...