{"id":1140,"slug":"schmitt-skiera-van-den-bulte-2011-16pct-ltv-premium","title":"Schmitt, Skiera, Van den Bulte 2011 (JoM) — referred customers ≥16% higher LTV than matched non-referred; retention persists, margin decays","kind":"reference","scope":"business","status":"current","audiences":["kevin","candid-team"],"topics":["psychology-aversion","referral-mechanics"],"reference_body":"**Claim:** Schmitt, Skiera, and Van den Bulte (2011), \"Referral Programs and Customer Value,\" tracked **~10,000 customers of a German retail bank for ~33 months** and found that referred customers had:\n\n- **Higher contribution margins**, with the advantage **eroding over time**\n- **Higher retention rates**, with the advantage **persisting**\n- **Higher lifetime value — at least 16% higher** than matched non-referred customers\n- **Substantial variation across segments** — private-banking referrals 36% higher value; some retail-bank segments minimal or zero difference\n\nWon the 2011 MSI/H. Paul Root Award.\n\n**Source:** Schmitt, P., Skiera, B., & Van den Bulte, C. (2011). \"Referral Programs and Customer Value.\" *Journal of Marketing* 75(1), 46–59.\n\n**Confidence:** Verified (banking context). Cross-domain mapping to trades is Directional but theory-consistent.\n\n**For Candid — uncomfortable translation:** A strong-tie referral from a fellow contractor doesn't just convert better at the front end; it **produces a longer-retained client** because the referring relationship continues to *police the engagement*. The referrer is exposed to reputation cost if the referred relationship goes poorly — that exposure works on both sides.\n\n**Mechanism decomposition:** [[van-den-bulte-2018-better-matching-social-enrichment]].","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"research-brief-trust-networks-in-group-reputation-may-2026","title":"Research brief: trust, referral networks, and in-group reputation in Ontario's trades economy (May 2026 — Foundation Brief #3)","kind":"reference","scope":"business","link_type":"relates-to"}],"incoming":[{"slug":"van-den-bulte-2018-better-matching-social-enrichment","title":"Van den Bulte, Bayer, Skiera, Schmitt 2018 (JMR) — referred-customer LTV decomposes into \"better matching\" (temporary) + \"social enrichment\" (persistent)","kind":"reference","scope":"business","link_type":"depends-on"},{"slug":"expectation-setting-retention-by-tie-strength","title":"Expectation transfer + retention by tie strength — strong-tie referrals carry expectation specificity + active social-enrichment retention; weak-tie referrals churn at near-baseline rates","kind":"reference","scope":"business","link_type":"depends-on"},{"slug":"rule-network-membership-precedes-referral-program-design","title":"R1 — Network membership precedes referral-program design; \"we have a referral program\" is not a strategy until \"we are in the network\" is true","kind":"rule","scope":"business","link_type":"depends-on"}]},"created_at":"2026-05-25T13:34:11.143Z","updated_at":"2026-05-25T13:34:11.143Z"}