How proof of stake emission creates token inflation
Proof of stake networks mint new tokens every time a validator proposes or attests to a block. That minting is called emission. It is deliberate inflation, and the network uses those new tokens to pay validators and stakers for securing the chain.
This differs from proof of work, where miners receive new coins for solving computational puzzles. In proof of stake, the cost is capital - locking up tokens - rather than electricity. The reward structure is the same: new supply enters circulation at a scheduled rate.
The yield that isn't yield
A staking protocol will show you an annualised yield. That number is nominal. It does not account for the fact that all token holders share the network, and every newly minted token reduces the purchasing power of every existing token. Your real return is your nominal yield minus the network's inflation rate.
If a network emits new tokens at 4% per year and you stake at a 6% nominal yield, your real gain is roughly 2%. If the inflation rate is 8% and your yield is 5%, you lose purchasing power even though you are staking. You are being paid in freshly diluted tokens.
Non-stakers take the full hit. They hold tokens that are diluted by the entire inflation rate with no offset, and over time their share of the total supply shrinks.
Ethereum's example
Ethereum switched to proof of stake in September 2022 during an event called the Merge. Before the Merge, Ethereum issued about 13,000 ETH per day to miners; after the Merge, daily issuance dropped to roughly 1,600 ETH per day. That is a reduction of nearly 90%.
The lower issuance did not stop inflation. It slowed it. Ethereum still mints new ETH to pay validators. The inflation rate depends on how many validators are active: more validators means more rewards distributed across more participants, but also more total issuance. As of late 2023, Ethereum's annual issuance was roughly 0.5% of total supply.
The twist is that a fee-burning mechanism, EIP-1559, can offset some or all of that issuance. When network activity is high, more fees are burned than new ETH is minted, and the network becomes deflationary for periods. When activity is low, the network is inflationary again. The base case remains positive issuance.
Solana's declining inflation
Solana launched with a fixed inflation schedule that declines over time. The initial inflation rate was 8% annually, and that rate decreases by 15% every year until it reaches a long-term floor of 1.5%. The schedule is hard-coded in the protocol.
Early stakers received high nominal yields, but those yields were matched against high inflation. As of 2023, Solana's inflation rate had dropped below 6% and continues to fall. Stakers on Solana have historically earned a yield slightly above the inflation rate, producing a small real return. The gap narrows as the inflation floor approaches.
Solana also requires a relatively high minimum stake - about 0.026 SOL to earn rewards as of mid-2023. That excludes small holders from direct staking unless they use a liquid staking derivative.
What matters for a token holder
You need two numbers: the network's current annualised inflation rate and your staked yield. The difference tells you whether your position is growing or shrinking in real terms.
Networks publish their emission schedules. Look at the actual block reward and the number of blocks per year, then divide by the current circulating supply. That is your inflation rate. Compare it to the yield you are offered.
Some networks are transparent about this. Others make it hard to find. If the advertised yield looks generous, check the inflation rate first - it may be explaining that yield.
Why non-stakers lose
Every token holder owns a fixed percentage of the supply. When new tokens are created, that percentage shrinks unless you acquire more tokens. Staking gives you a way to acquire new tokens at roughly the rate of new issuance. But only roughly.
The inflation rate applies to all tokens. The staking yield applies only to tokens you have locked. If a portion of the network does not stake, the staking yield can be higher than the inflation rate because the tokenomics/block-reward-validator-incentive/">reward pool is divided among fewer participants. The dilution still applies to everyone.
Holders who do not stake are diluted by the full inflation rate. Their real return is negative by that amount. Over years, the effect compounds: a 5% annual dilution halves purchasing power every 14 years.
Proof of stake emission is not free money. It is a transfer mechanism. New tokens go to validators and stakers; everyone else pays the cost.
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