Crowdsourcing Information in Informal Supply Chains
summary
A deployed field platform called Pimping Pen app crowdsources mill prices and transaction logs from transportation middlemen in Indonesian palm fruit supply chains, backed by 1.5 years of fieldwork (over 4,000 farmer surveys, GPS traces and ride-alongs). About 300 registered users, ~88 daily active and ~50 daily sharers, receive payments totaling $2,000/month; the research develops a game-theoretic disclosure policy using partial disclosure and a platform-enforced grim-trigger to incentivize truthful, non-monetary sharing.
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chapters (24)
- 0:00Intro
- 0:46What are Informal Supply Chains?
- 1:56Information in Informal Supply Chains
- 5:09Our Setting: Palm Fruit in Rural Indonesia
- 10:26Inefficiencies in Palm Oil Supply Chain
- 13:40Designing an Information-Sharing Platform
- 19:12Related Literature
- 22:43Overview of Large-Scale Field Work
- 23:12Establishing Farmer-Middleman Connections
- 24:05Nicknames...
- 24:39Establishing Middleman-Processor Connections
- 26:14Understanding Middleman Operations
- 27:35Price Dispersion at Processors
- 27:58PemPem
- 32:00Model
- 33:30Competition: Volume Evolution
- 36:42Assumptions
- 37:14Main Results
- 38:34Example: Full Platform Disclosure
- 42:19Example: Grim-Trigger Platform Disclosure
- 43:42Optimal Information Disclosure
- 44:11Extensions & Practical Considerations
- 45:18Field Experiment Operationalization
- 45:52Conclusion
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