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What is wealth concentration in crypto?
Wealth concentration in crypto is how much of a coin's supply, mining power or voting power sits with a small number of holders. Critics say crypto reproduces or sharpens inequality; supporters say protocol rules treat every coin alike, so rewards scale in proportion to holdings without the economies of scale of mining.
Where people disagree
Supporters say crypto's rules are the same for every holder: a staker with ten times the coins earns exactly ten times the rewards, without the bulk-buying advantages large miners enjoy. Vitalik Buterin argues proof of stake reduces centralization risk because economies of scale matter much less than in proof of work.
Critics say crypto concentrates wealth and power from the start. BIS economists note many blockchains allocate a substantial share of coins to insiders and that fixed operating costs favor large stakers, while Makarov and Schoar document concentrated ownership among the largest holders and among miners, which also concentrates control of governance and the network.
What it means for you
Concentration reaches you through price and control: a few large holders selling can move a thinly traded coin sharply, and in token-voted systems they can outvote everyone else. A coin's top-holder list on a block explorer is a starting point, but one exchange address can hold coins for many customers, so raw address rankings can mislead.
How it works
Makarov and Schoar (NBER, 2021) built a database linking Bitcoin addresses to real entities to measure ownership concentration among the largest holders and the concentration and regional make-up of miners; linking matters because one address may belong to an exchange holding coins for many users. BIS economists argue proof-of-stake tends to concentrate because operating costs are mostly fixed, favoring large stakers, and that insider allocations at launch add to it. Vitalik Buterin's Proof of Stake FAQ counters that staking returns are strictly proportional to stake, avoiding the hardware economies of scale of mining.
Sources: Makarov and Schoar, Blockchain Analysis of the Bitcoin Market (NBER Working Paper 29396, 2021), BIS Quarterly Review: DeFi risks and the decentralisation illusion (Aramonte, Huang, Schrimpf, 2021), Vitalik Buterin, Proof of Stake FAQ (2017) · checked 4 October 2026
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