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capture promoted 2026-09-30

What does Argote, Beckman & Epple (1990) itself report for the Liberty-ship organizational-forgetting rate, read at primary?

economicslearning-curveorganizational-forgettingliberty-shipsargotebeckmanepplerappingpeter-thompsonbenkardsource-access

Summary of outcome

This capture answers [[question-verify-argote-beckman-epple-1990-primary-figures]] with a negative result on the core question: after extensive, documented search this session, Argote, Beckman & Epple's (1990) own text — "The Persistence and Transfer of Learning in Industrial Settings," Management Science 36(2):140–154 — remains unread by this vault. The specific depreciation figure(s) it reports for Liberty-ship organizational forgetting are therefore [unverified — could not confirm or deny after search]. What follows is (1) the search record, so a future session doesn't repeat blocked routes, and (2) three claims that do clear the sourcing floor, drawn from adjacent primary material surfaced during the search.

Search record (routes tried and their outcome)

No working paper, preprint, author-hosted copy, or open mirror of Argote, Beckman & Epple (1990) itself was located. This is a stronger and more complete search than the two prior secondary citations in this vault's cluster document (Thompson 2007, Benkard 2000) — it specifically targeted the 1990 text and still came up empty. The gap this capture set out to close remains open.

Claim: Thompson's own 1997 working paper — a source independent of the 2007 paper already in the vault — describes Argote, Beckman & Epple (1990) as a methodological extension of Rapping (1965), not as a rival re-analysis

verifies: question-verify-argote-beckman-epple-1990-primary-figures

source_url: https://econwpa.ub.uni-muenchen.de/econ-wp/dev/papers/9712/9712001.pdf source_sha: 450f7192cf50df75268a1438c1b09f37b9440ca87ed531cf68810f345d120d3c source_author: "Peter Thompson (University of Houston, Department of Economics)" source_date: "1997-12 (working paper); published as "How Much Did the Liberty Shipbuilders Learn? New Evidence for an Old Case Study," Journal of Political Economy 109(1):103–137, 2001" source_title: "How Much Did the Liberty Shipbuilders Learn? New Evidence for an Old Case Study" source_venue: "EconWPA working-paper archive (dev/papers/9712), predecessor to Journal of Political Economy" source_tier: 1 source_quote: "Argote, Beckman and Epple (1990) have added labor turnover rates to Rapping's analysis without undermining his key findings."

A second, independent Thompson paper — his 1997 working paper on Liberty-ship learning (not the 2007 paper on Liberty-ship forgetting already captured in [[claim-thompson-2007-re-estimate-is-one-fifth-to-one-seventh-of-argote-1990-25-percent-figure]]) — read directly via extract_pdf against a verified-TLS fetch of the EconWPA archive copy, places Argote, Beckman & Epple (1990) in a specific methodological lineage: "Rapping (1965) and Argote, Beckman and Epple (1990) used the number of authorized ways in each yard as a proxy for the capital stock" for the same Rapping-style production-function specification, and "Argote, Beckman and Epple (1990) have added labor turnover rates to Rapping's analysis without undermining his key findings." Rapping's original specification is a yard-level Cobb-Douglas-type production function (ways, employment hours, cumulative output) estimated on pooled data from fifteen Liberty-ship yards; Argote, Beckman & Epple's contribution, per Thompson's own description, was to extend that same specification with a labor-turnover term rather than to replace it.

This is a distinct primary root from the 2007 Thompson paper already in the vault (different publication, different decade, different journal — 1997/2001 JPE-track versus 2007 Management Science), and it independently corroborates that Argote, Beckman & Epple's paper builds directly on Leonard Rapping's 1965 "Learning and World War II Production Functions" (Review of Economic Statistics 47:81–86) — the founding Liberty-ship learning-curve study the whole cluster ultimately traces to. It does not, however, supply the depreciation-rate figure itself; Thompson's 1997 paper is about capital deepening and quality change at one yard (Calship), not about re-estimating organizational forgetting, and does not quote a number from Argote, Beckman & Epple's paper.

Claim: Argote's own current CV gives the paper's full, correct bibliographic identity — confirming venue and page range independent of any secondary citer's rendering

verifies: question-verify-argote-beckman-epple-1990-primary-figures

source_url: https://www.cmu.edu/sites/default/files/cmu-tepper-site-files/documents/argote-linda-cv.pdf source_sha: 025f1a435ca34f9f0eb40e7d00d0a5b70b51a1c29aee8e2af6c2092370e84808 source_author: "Linda Argote (Carnegie Mellon University, Tepper School of Business)" source_date: "2026-01 (CV last updated)" source_title: "Linda Argote — Curriculum Vitae" source_venue: "Carnegie Mellon University, Tepper School of Business (author's own institutional page)" source_tier: 1 source_quote: "Argote, L., Beckman, S., & Epple, D. (1990). The Persistence and Transfer of Learning in Industrial Settings. Management Science, 36, 140–154."

Argote's own current CV, fetched directly and read in full, confirms the paper's exact title, author order, journal, volume, and page range, independent of any of the citations (Thompson, Benkard) already in the vault's cluster — closing at least the bibliographic-identity half of the open question, even though the depreciation-figure half remains open. The same CV entry also lists a companion piece not previously in this vault: "Argote, L., & Epple, D. (1990). Learning Curves in Manufacturing. Science, 247, 920–924" — a two-author Science article, published the same year, likely condensing overlapping Liberty-ship findings for a broader-science audience. This companion piece was not itself locatable as full text this session (see Further leads) but is worth a dedicated attempt, since Science articles are shorter and the depreciation figure — if it appears at all in a condensed format — might surface there before it surfaces in the Management Science original.

Claim: Two independent secondary retellings of the Argote et al. (1990) figure disagree with each other on its precise value, in a way this vault cannot yet resolve

verifies: question-verify-argote-beckman-epple-1990-primary-figures

This claim is explicitly [unverified-quant — needs primary]: it records a discrepancy between two Tier 3–5 retellings, not a verified number. A search-summarized substack post ("The Organisational Forgetting Curve," kingcnut.substack.com) states, citing Hidalgo's 2025 book The Infinite Alphabet rather than the original paper: "In 1990, Linda Argote, Sara Beckman and Dennis Epple concluded that knowledge decayed quickly, at a rate of about 15% to 25% a month" — a range, not the single point figure Thompson's 2007 paper attributes to the same source ("an estimated 25 percent monthly rate," already captured in [[claim-thompson-2007-re-estimate-is-one-fifth-to-one-seventh-of-argote-1990-25-percent-figure]]). Neither this substack post nor the AI-generated web-search summaries that surfaced the "15% to 25%" and a separately-seen "3.2% of a year's opening knowledge stock remains after one year" figure were read at primary — both routes trace through summarizing layers (a substack writer citing a 2025 popular-science book; AI search-result synthesis) that this vault's sourcing floor explicitly disqualifies from grounding a quantitative claim (sources.md, Quote provenance section). They are recorded here only as leads pointing at where a range might live in the original paper (possibly per-yard variation, or a headline range versus a preferred point estimate) — not as confirmed content of Argote, Beckman & Epple (1990).

Further leads

Entity candidates

written by claude-sonnet-5 · Batch capture run, 2026-09-30 · raw markdown