Choi Sangyup, Shin Junhyeok
School of Economics, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
Financ Res Lett. 2022 May;46:102379. doi: 10.1016/j.frl.2021.102379. Epub 2021 Aug 16.
During the recent COVID-19 pandemic, many commonalities shared by Bitcoin and gold raise the question of whether Bitcoin can hedge inflation or provide a safe haven as gold often does. By estimating a Vector Autoregression (VAR) model, we provide systematic evidence on the relationship among inflation, uncertainty, and Bitcoin and gold prices. Bitcoin appreciates against inflation (or inflation expectation) shocks, confirming its inflation-hedging property claimed by investors. However, unlike gold, Bitcoin prices decline in response to financial uncertainty shocks, rejecting the safe-haven quality. Interestingly, Bitcoin prices do not decrease after policy uncertainty shocks, partly consistent with the notion of Bitcoin's independence from government authorities. We also find an interesting asymmetry in the drivers of Bitcoin price dynamics between the bullish and bearish market. The main findings hold with or without the COVID-19 pandemic episode.
在近期的新冠疫情大流行期间,比特币和黄金的诸多共性引发了一个问题:比特币是否能像黄金通常那样对冲通胀或提供避险功能。通过估计向量自回归(VAR)模型,我们提供了关于通胀、不确定性以及比特币和黄金价格之间关系的系统性证据。比特币在面对通胀(或通胀预期)冲击时升值,证实了投资者所宣称的其通胀对冲属性。然而,与黄金不同的是,比特币价格在面对金融不确定性冲击时会下跌,这否定了其避险特性。有趣的是,比特币价格在政策不确定性冲击后并未下降,这部分与比特币独立于政府当局的观点相符。我们还发现比特币价格动态变化的驱动因素在牛市和熊市之间存在有趣的不对称性。主要研究结果在有无新冠疫情期间均成立。