Bitcoin, in stark contrast, has a fixed supply which would imply a deflationary bias, the authors note.
I agree here. People are biased alredy, they don't want to spend coins because of a fear that in the future Bitcoin will be much more valuable.
Bitcoin community is suffering from our own 'Bitcoin Pizza' syndrome.
However, security or trust issues the decentralization of digital currency and the absence of insurance provided by governmental authorities may prevent digital currency from being used as a store of value.
Government insurance is not worth anything, banks are lying, quantitative easing is rampantly growing bigger.
Fiat money is good only here and now, tomorrow we can have another global economic crisis.