Liquidity mining (also called yield farming) is a token-distribution strategy in which a protocol pays out its own governance token to the users who supply liquidity or otherwise use it. The rewards sit on top of ordinary trading fees or lending interest, so for a period the protocol effectively subsidises participation with newly minted tokens. It is the most widely copied DAO growth mechanism of the last five years, and also one of the most criticised: it reliably buys total value locked (TVL) in the short run, and reliably fails to keep it.
Origin: Compound and "DeFi summer"
Liquidity mining as a mass phenomenon dates to June 2020, when Compound began distributing its governance token COMP daily to both suppliers and borrowers across its money markets, in proportion to the interest accruing in each market. Within a day COMP was among the largest DeFi tokens by market capitalisation, and the design was copied across the ecosystem in what became known as "DeFi summer." The insight was simple: instead of selling tokens to investors, a protocol could distribute them to the people actually using it, bootstrapping both liquidity and a holder base at once — a user-centric distribution in place of a sale.
How it works
The mechanics are consistent across implementations:
- Deposit. A user supplies assets to a pool — a lending market, or a two-sided AMM pool.
- Accrue. The protocol streams a fixed or governance-set number of its tokens per block/day to that pool, split across depositors by share.
- Claim and, usually, sell. Farmers harvest the reward token. Because most farmers value the reward only in the numéraire they came with, a large share is sold on receipt, adding constant sell pressure.
The headline number is APY: the annualised value of emissions divided by capital deposited. When the reward token appreciates, that APY can spike — Compound's reached roughly 50% at points — which is exactly what pulls in capital that has no interest in the protocol beyond the yield. High token velocity (reward tokens earned and immediately dumped) is the direct on-chain signature of this dynamic.
The mercenary-capital problem
Mercenary capital is liquidity that chases the highest available yield with no loyalty to any one protocol. It arrives when a program launches and leaves the moment emissions taper or a richer farm appears elsewhere. The consequence is that TVL, during an incentive program, measures the size of the incentive far more than the health of the protocol: a chart of deposits often tracks the emissions schedule almost exactly, then collapses when rewards end. The extreme cases — pools that amassed a meaningful slice of all DeFi TVL over a single weekend and then emptied — made the pattern impossible to ignore.
The costs compound. Emissions dilute existing holders to pay for liquidity that does not stay; the sold reward tokens depress price; and the protocol is left with a temporary TVL number and no durable moat. Liquidity mining is best understood not as free growth but as renting liquidity — and rented liquidity leaves.
Steering emissions: vote-escrow and gauges
The first major refinement was to make emissions earned and directed rather than sprayed. Curve's design is the archetype: liquidity providers still receive CRV emissions, but the split across pools is decided by gauge-weight votes cast by holders who have locked CRV into vote-escrowed veCRV. Locking longer grants more weight, converting some mercenary capital into longer-committed capital and letting governance point rewards at the pools that matter. It also spawned a secondary market — "bribes" and vote markets where protocols pay veCRV holders to direct emissions their way — which is a story in its own right (the "Curve wars"). The lesson: emissions are a lever, and who holds the lever is a governance question.
Owning liquidity instead of renting it
The second response was to stop renting altogether. Rather than pay emissions to third-party LPs forever, a DAO can acquire the liquidity for its own balance sheet — protocol-owned liquidity (POL). OlympusDAO popularised the approach with bonding: the protocol sells its token at a discount in exchange for LP tokens, building a treasury of liquidity it controls and no longer has to keep bribing to retain. A liquidity bootstrapping pool solves the adjacent problem of the initial fair launch. Each of these trades an ongoing emissions bill for a one-time treasury cost, and each treats liquidity as an asset to hold rather than a subsidy to pay.
Design tradeoffs
Multicoin Capital's design-space analysis frames the choices well: who gets paid (makers, takers, or service providers like liquidators), how much (total allocation and how it is measured), and when (immediate, vested, or clawback-able). A program that pays a fixed emission with no lock-up should expect short-term arbitrageurs to crowd out organic users; lock-ups, vesting, and usefulness-weighted rewards push in the other direction. The recurring failures are the mirror image: overpaying for headline TVL, rewarding volume rather than usefulness, and emission rules loose enough to be gamed. Liquidity mining is not inherently bad — it is a distribution tool whose outcome is entirely determined by these parameters and by whether the protocol has a reason for the capital to stay once the subsidy stops.
How Caper approaches this
A Caper runs no liquidity-mining program and emits no reward token. Instead of renting liquidity with emissions, each caper's token trades against an always-on bonding curve whose reserve provides continuous liquidity at the curve price — there is no third-party LP to bribe and no emission schedule to taper. Governance weight is not farmed either: it is earned participation, and every holder keeps a credible exit right to redeem their share of the treasury at any time. The contrast is the point of this page — liquidity mining buys capital that leaves when the reward stops; Caper's design gives capital a standing reason to stay, or a clean way to go, without a subsidy running underneath it.