Sustainability-linked finance and extended producer responsibility look like separate instruments. They perform the same operation: converting a measurement into a price.
An externality does not walk inside on its own
Environmental cost is absent from a profit-and-loss statement not because the cost does not exist but because no one has agreed to count it. Internalisation is the introduction of a counting rule, not a change of conscience. A cost takes a place in the accounts only once the scope, the unit and the person who confirms the value have been fixed.
Finance uses an interest rate; EPR uses a fee
A sustainability-linked loan moves its margin according to whether pre-agreed indicators are met. An extended producer responsibility scheme charges a fee against volumes placed on the market and recovery achieved. The instruments sit with different ministries and carry different names, but the structure is identical: one measured value is wired to a flow of money. Both therefore succeed or fail at the point of measurement design.
A badly chosen indicator prices the wrong behaviour
The moment a measurement becomes a price, whatever is easy to measure becomes what is managed. Count recovered tonnage alone and no one manages what the material becomes. Count total emissions alone and a production cut is indistinguishable from an efficiency gain. Selecting an indicator is not a technical step; it decides which behaviour carries a price.
Where to start in practice
List the environmental indicators your organisation currently reports, and write next to each the money it actually moves — a margin, a fee, a subsidy, a contract term. Indicators that leave the second column empty are measurements that have not yet become prices. That list is an accurate picture of how far internalisation has reached.