{"id":1457,"slug":"levin-stanford-public-information-shrinks-asymmetry","title":"Levin (Stanford) — making private information public unambiguously improves trade; the edge erodes as data diffuses","kind":"reference","scope":"business","status":"current","audiences":["kevin","smb-owner","candid-team"],"topics":["data-moats","information-asymmetry"],"reference_body":"**Claim.** Counter to a naive \"always hoard information\" reading of Akerlof, Levin notes that improving the *buyer's* information — i.e., making private information public — unambiguously improves trade. The corollary: information advantages erode as data commoditises and diffuses.\n\n**Quote.**\n> \"Improving the buyer's information — i.e., making private information public — unambiguously improves trade.\"\n\n**Source.** Jonathan Levin, \"Information and the Market for Lemons\" (Stanford, web.stanford.edu/~jdlevin/Papers/Lemons.pdf, accessed 2026-06-21).\n\n**Confidence.** Verified. Academic, no incentive taint.\n\n**Caveats.** Working/teaching paper rather than top-tier peer-reviewed publication; the underlying point is consensus information-economics, not a controversial finding.\n\n**Implication / use.** Frame any documented information edge as *temporary rent*, not permanent moat. Cross-references the existing moat brief ([[research-brief-public-data-private-moat]]) without re-deriving it. Anchors [[rule-treat-information-edge-as-temporary-rent]].","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"research-brief-information-asymmetry-decision-edge-june-2026","title":"Research notes (capture-layer): the affirmative, inward decision-edge case for data intelligence — information asymmetry applied to pricing, demand, risk, retention, targeting (June 2026)","kind":"research-notes","scope":"business","link_type":"depends-on"},{"slug":"akerlof-1970-market-for-lemons-asymmetric-information","title":"Akerlof 1970 — \"The Market for Lemons\"; asymmetric information can collapse markets (Nobel 2001)","kind":"reference","scope":"business","link_type":"relates-to"}],"incoming":[{"slug":"rule-treat-information-edge-as-temporary-rent","title":"Rule: treat any documented information edge as temporary rent, not permanent moat","kind":"rule","scope":"business","link_type":"depends-on"},{"slug":"tesco-loyalty-card-now-common-practice-edge-decay","title":"Tesco / Computing on dunnhumby sale — \"Using CRM data from loyalty cards is now common practice rather than the unique differentiator that it once used to be\"","kind":"reference","scope":"business","link_type":"relates-to"}]},"created_at":"2026-06-21T01:14:48.677Z","updated_at":"2026-06-21T01:14:48.677Z"}