E. Akyildirim, S. Corbet, and P. Katsiampa, The development of Bitcoin futures: Exploring the interactions between cryptocurrency derivatives, Neil Kellard, and Ahmet Sensoy, vol.33, pp.1-10, 2019.

D. Aloui, S. Goutte, K. Guesmi, and R. Hchaichi, COVID 19's Impact on crude oil and natural gas SP GS indexes, 2020.
URL : https://hal.archives-ouvertes.fr/halshs-02613280

D. G. Baur and T. Dimpfl, Price discovery in bitcoin spot or futures?, Journal of Futures Markets, vol.39, issue.7, pp.803-817, 2019.

D. G. Baur and B. M. Lucey, Is gold a dedge or a safe ahven? An analysis of stocks, bonds and gold, Financial Review, vol.45, issue.2, pp.217-229, 2010.

D. G. Baur and T. K. Mcdermott, Is gold a safe haven? International evidence, Journal of Banking and Finance, vol.34, issue.8, pp.1886-1898, 2010.

. Bekaert, R. J. Geert, X. Hodrick, and . Zhang, International stock return comovements, Journal of Finance, vol.64, issue.6, pp.2591-2626, 2009.

E. Bouri, B. Lucey, and D. Roubaud, Cryptocurrencies and the downside risk in equity investments, Finance Research Letters, vol.33, pp.1-14, 2019.

D. Bredin, T. Conlon, and V. Potì, Does gold glitter in the long-run? Gold as a hedge and safe haven across time and investment horizon, International Review of Financial Analysis, vol.41, pp.320-328, 2015.

T. Conlon, S. Corbet, and R. Mcgee, Are cryptocurrencies a safe haven for equity markets? An international perspective from the COVID-19 pandemic, 2020.

T. Conlon and R. Mcgee, Safe haven or risky hazard? Bitcoin during the COVID-19 bear market, 2020.

S. Corbet, B. Lucey, M. Peat, and S. Vigne, Bitcoin futures-What use are they?, Economics Letters, vol.172, pp.23-27, 2018.

S. Corbet, A. Meegan, C. Larkin, B. Lucey, and L. Yarovaya, Exploring the dynamic relationships between cryptocurrencies and other financial assets, Economics Letters, vol.165, pp.28-34, 2018.

A. Dyhrberg and . Haubo, Bitcoin, gold and the dollar -A GARCH volatility analysis, Finance Research Letters, vol.16, pp.85-92, 2016.

A. Dyhrberg and . Haubo, Hedging capabilities of bitcoin. Is it the virtual gold?, Finance Research Letters, vol.16, pp.139-144, 2016.

W. Feng, Y. Wang, and Z. Zhang, Can cryptocurrencies be a safe haven: a tail risk perspective analysis, Applied Economics, vol.50, issue.44, pp.4745-4762, 2018.

S. Foley, J. R. Karlsen, and T. Putni??, Sex, drugs, and bitcoin: How much illegal activity is financed through cryptocurrencies?, The Review of Financial Studies, vol.32, issue.5, pp.1798-1853, 2019.

L. Gil-alana and . Alberiko, Cryptocurrencies and stock market indices. Are they related?, 2020.

J. W. Goodell, COVID-19 and finance: Agendas for future research, Finance Research Letters, vol.35, 2020.

J. W. Goodell, J. Richard, F. Mcgee, and . Mcgroarty, Election uncertainty, economic policy uncertainty and financial market uncertainty: A prediction market analysis, Journal of Banking and Finance, vol.110, issue.1, 2020.

J. W. Goodell and S. Goutte, Co-movement of COVID-19 and Bitcoin: Evidence from wavelet coherence analysis, Finance Research Letters forthcoming, 2020.
URL : https://hal.archives-ouvertes.fr/halshs-02613277

J. W. Goodell and T. Huynh, Did Congress trade ahead? Considering the reaction of US industries to COVID-19, 2020.

G. Hale, A. Krishnamurthy, M. Kudlyak, and P. Shultz, How futures trading changed bitcoin prices, FRBSF Economic Letter, vol.12, pp.1-5, 2018.

B. Kapar and J. Olmo, An analysis of price discovery between Bitcoin futures and spot markets, Economics Letters, vol.174, pp.62-64, 2019.

T. Klein, H. Pham-thu, and T. Walther, Bitcoin is not the New Gold -A comparison of volatility, correlation, and portfolio performance, International Review of Financial Analysis, vol.59, pp.105-116, 2018.

J. Kurka, Do cryptocurrencies and traditional asset classes influence each other?, Finance Research Letters, vol.31, pp.38-46, 2019.

. Lee, C. Shih-cheng, C. Lin, and . Yang, The asymmetric behavior and procyclical impact of asset correlations, Journal of Banking and Finance, vol.35, issue.10, pp.2559-2568, 2011.

R. Matkovskyy and A. Jalan, From financial markets to Bitcoin markets: A fresh look at the contagion effect, Finance Research Letters, vol.31, pp.93-97, 2019.
URL : https://hal.archives-ouvertes.fr/hal-02131637

W. Mensi, M. Ur-rehman, and D. Maitra, Does bitcoin co-move and share risk with Sukuk and world and regional Islamic stock markets? Evidence using a time-frequency approach, 2020.

. O'connor, A. Fergal, M. Brian, J. A. Lucey, D. G. Batten et al., The financial economics of gold -A survey, International Review of Financial Analysis, vol.41, pp.186-205, 2015.

S. Raza, N. Ali, M. Shah, and . Shahbaz, Does economic policy uncertainty influence gold prices? Evidence from a nonparametric causality-in-quantiles approach, Resources Policy, vol.57, pp.61-68, 2018.

H. Sebastião and P. Godinho, Bitcoin futures: An effective tool for hedging cryptocurrencies, Finance Research Letters, 2019.

S. Shahzad, E. Hussain, D. Bouri, L. Roubaud, and . Kristoufek, Safe haven, hedge and diversification for G7 stock markets: Gold versus bitcoin, Economic Modelling, vol.87, pp.212-224, 2019.

A. Sharif, C. Aloui, and L. Yarovaya, COVID-19 pandemic, oil prices, stock market, geopolitical risk and policy uncertainty nexus in the US economy: Fresh evidence from the wavelet-based approach, 2020.

L. A. Smales, Bitcoin as a safe haven: Is it even worth considering?, Finance Research Letters, vol.30, pp.385-393, 2019.

. Wang, C. Gang-jin, D. Xie, L. Wen, and . Zhao, When Bitcoin meets economic policy uncertainty (EPU): Measuring risk spillover effect from EPU to Bitcoin, Finance Research Letters, p.31, 2019.

S. Wu, M. Tong, Z. Yang, and A. Derbali, Does gold or Bitcoin hedge economic policy uncertainty?, Finance Research Letters, vol.31, pp.171-178, 2019.

L. Yarovaya, J. Brzeszczynski, J. W. Goodell, B. M. Lucey, and C. Lau, Rethinking financial contagion: Information transmission during the COVID-19 pandemic, 2020.

L. Yarovaya, R. Matkovskyy, and A. Jalan, The effects of a 'black swan' event (COVID-19) on herding behavior in cryptocurrency markets: Evidence from cryptocurrency USD, EUR, JPY and KRW markets, 2020.