Is Bitcoin just a bubble?

November 30, 2017
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Some people think so, in the associated video clip Joe Stiglitz says Bitcoin should be banned.  Here is some FT skepticism from Jean Tirole.

I used to think Bitcoin was a bubble, but I no longer hold this view.  If nothing else, put all the more complicated factors aside and think of Bitcoin as competing for some of the asset space held by gold and also to some extent art.  Gold, too, in its hedging functions is a “bubble,” though not a bubble.  It is hard to ship, but has some extra value because it is perceived as a focal asset and one that does not covary positively in a simple way with the market portfolio.  The same is true of Bitcoin, yet that kind of focality-based “bubbliness” can persist for centuries.  Note by the way that gold has become less of a hedge, partly because inflation has been low and partly because China and India dominate the gold market more than a few decades ago.  So new and better hedges are needed.  And what a backstory Bitcoin has, making it a strong competitor in this regard.

I am not saying that is the Bitcoin story, it is simply a Bitcoin story, a minimalist account that can appeal to skeptics.  And you can buy this story and still think the current price is either too high or too low.

This estimate claims there is $241 trillion of wealth in the world, make of that what you will (there is something nonsensical about such aggregate measures because they are not traded against anything).  If you imagine people wish to hold one quarter of one percent of that in crypto form, that gets you to about $600 billion in value.  Currently crypto assets (on good days) hover near $300 billion in market capitalization.  Is that so crazy?  I genuinely don’t know, but that is one way of thinking about market cap in this sector.

I will continue to watch with interest.

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