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LIT-1134: Persuasion Bias, Social Influence, and Unidimensional Opinions

1 min read

Properties5
StatusActive — read 2026-10-29 (NOTE-1392) in full, from the LSE Research Online copy of the authors' version of April 2003; worth reading as the paper that reads DeGroot averaging as a bias, failing to discount repeated information, and derives from it that consensus weights are the listening matrix's stationary distribution, correct only in balanced networks, and that long-run disagreement lines up on one axis across all issues. Read it knowing that its listening weights are fixed and reports truthful, so it gives capture without fidelity but no hysteresis or feedback from outcome to authority, that its political and marketing applications are conjecture, and that only the proofs of Theorems 2 and 3 were followed.
Version3
Tagssocial-science, network-science
ExtendsLIT-1527 — Reaching a Consensus
Cited as “paper” byNOTE-1392 — DeMarzo, Vayanos and Zwiebel — Persuasion bias, social influence, and unidimensional opinions

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DeMarzo, P. M., Vayanos, D. & Zwiebel, J. (2003). Quarterly Journal of Economics 118(3):909–968.

Read in full on 2026-10-29 (NOTE-1392).

Why this is here

A15 of the exchange of 2026-10-16: possibly a simpler explanation of CLAIM-297’s capture, as repeated counting of correlated evidence (QUESTION-117).

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