{ "identifier": "5BeZILsB", "argumentId": "cmpux6tg6000w8c441gvic2cq", "permalink": "https://www.isonomia.app/a/5BeZILsB", "version": 1, "contentHash": "sha256:ba2f72dcb39380a4c535b4a31a71be7f62d2123644c615ea0f77da3707d6a1a5", "immutablePermalink": "https://www.isonomia.app/a/5BeZILsB@ba2f72dcb39380a4c535b4a31a71be7f62d2123644c615ea0f77da3707d6a1a5", "isoId": "iso:argument:5BeZILsB", "isoUrl": "https://www.isonomia.app/iso/argument/5BeZILsB", "doi": null, "retrievedAt": "2026-07-16T18:25:11.309Z", "createdAt": "2026-06-01T08:01:39.222Z", "updatedAt": "2026-06-01T08:01:39.222Z", "conclusion": { "claimId": "cmpux6pof000j8c44rh9eq2ii", "moid": "c7e6ab858d29060ba3a5b513be85ed69eda4706bad47af3f3f2243292b2caf72", "text": "The trial evidence establishes that output stays roughly stable (company revenue broadly flat-to-slightly-up, retention strongly improved) under a four-day week - but it does NOT establish that productivity rises, because the trials are self-selected, advocacy-coordinated, 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"63162569e549fe42b7db7a6ac6a1cce74b62d89d1e2f09eefd7978ace6374213", "text": "The trials lack a randomized control group and most participating firms have no objective productivity metric; lead researcher Juliet Schor characterized the results as self-reports of companies saying the innovation is working, and economists noted that the implied overnight productivity jumps are implausibly large.", "isImplicit": false }, { "claimId": "cmpux6qq8000r8c445xsta1xk", "moid": "b03a84ce319a27875c9226de470d722825dbd0528b92fe46ffda5c7406a76cdc", "text": "What the objective financial data actually shows is stability, not gain: in the UK pilot, company revenue rose only ~1.4% on average over the trial, and the German trial found revenue and profit broadly stable versus the prior year - while staff turnover fell sharply (~57% in the UK).", "isImplicit": false } ], "scheme": { "id": "cmoqrmt99000i8c7texhpjxa1", "key": "methodological_critique", "name": "Methodological Critique (NON-STANDARD)", "title": 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