The quantity theory of crypto: what is Bitcoin worth as a medium of exchange?

John Lewis

The recent near halving of Bitcoin’s price has reignited debate about its true value. As a store of value, net present value asset pricing models suggest it should be worth zero because it pays no dividend. Yet its price remains far above zero, and its total value is still large despite recent turbulence. In this post I explore the question: what’s Bitcoin’s value as a means of exchange? I show that using a simple quantity theory of money framework helps explain its extreme volatility, the powerful influence of sentiment, how prices can surge even when transaction usage is low, and – crucially – why innovations by competitors and limited retail payment adoption pose significant downside price risks.

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The seven deadly paradoxes of cryptocurrency

John Lewis

Will people in 2030 buy goods, get mortgages or hold their pension pots in bitcoin, ethereum or ripple rather than central bank issued currencies? I doubt it.  Existing private cryptocurrencies do not seriously threaten traditional monies because they are afflicted by multiple internal contradictions. They are hard to scale, are expensive to store, cumbersome to maintain, tricky for holders to liquidate, almost worthless in theory, and boxed in by their anonymity. And if newer cryptocurrencies ever emerge to solve these problems, that’s additional downside news for the value of existing ones.

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Bitesize: The very volatile value of cryptocurrencies

John Lewis

Proponents of private cryptocurrencies argue they are a better store of value than traditional “fiat” currency. But even if a cryptocurrency’s value cannot be inflated away by large supply increases, that doesn’t automatically mean its value is stable in terms of ability to buy goods and services.

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