Fig. 3
From: Whether and when did bitcoin sentiment matter for investors? Before and during the COVID-19 pandemic
Left Panel (a) depicts the daily return on Bitcoin prices and change in bitcoin specific sentiment index from 1st January 2016 to 30th June 2021. Right Panel (b) shows the wavelet power spectrum of return and sentiment index data, respectively. Thick black line indicates the boundaries of the cone of influence (COI). Thin black line shades the areas with 10% significant level. These areas have been simulated after 1000 runs. The wavelet power ranges respect to jet color codes from low (blue) to high (red). Periods are depicted as weekly on the vertical axis