{"id":"6e7747af07468be56b0f7a1c84e59105321d7b7c54f8ab16b33c59f50d85368a","title":"William Pagel argues in a Bank of England paper for a restrained balance sheet","argument":"Published on 28 August 2026, William Pagel argues in a Bank of England Staff Working Paper that the central bank should supply enough reserves to meet demand, but not provide abundant reserves without limit. In his model, reserves reduce the likelihood and severity of bank runs, while a larger balance sheet can crowd out private investment and misallocate capital because the central bank faces constraints on which securities it can hold. Pagel’s calculations find that, under full information, the optimal supply reaches the point where reserve demand is satiated. Because supplying too few reserves is more costly than supplying too many, he says uncertainty warrants a buffer beyond that point. Even under high degrees of robustness, however, he finds the buffer need not exceed two and a half percentage points of bank assets. His conclusion is that robustness justifies only a modest expansion beyond satiation, not open-ended provision of abundant reserves. The model is calibrated to pre-financial crisis conditions and empirical estimates of the non-linear reserve demand curve; how well that calibration supports the prescription under other conditions remains unknown.","topicIds":["investment-booms-and-busts"],"domain":"other","claimType":"attributed reading","limits":"Text as retrieved on October 23, 2026; originally published August 28, 2026.","speaker":{"name":"Bank of England","roleAtSource":"Publisher"},"source":{"title":"A welfare analysis of the central bank balance sheet","publisher":"Bank of England","format":"Article","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","publishedAt":"2026-08-28T13:00:00.000Z","dateBasis":"Date supplied by the publisher’s feed."},"evidence":[{"text":"William Pagel’s Bank of England working paper was published on 28 August 2026.","excerpt":"Published on\n28 August 2026","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"},{"text":"Pagel’s model weighs reserves’ reduction of bank-run risk against costs from a larger central bank balance sheet.","excerpt":"Supplying central bank reserves reduces the likelihood and severity of runs, but comes at a cost: constraints on the set of securities the central bank can hold mean a larger balance sheet crowds out private investment and misallocates capital.","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"},{"text":"Under full information, Pagel finds the optimal reserve supply reaches satiation; uncertainty warrants a buffer, but not open-ended abundant reserves.","excerpt":"Under full information, it is optimal to expand reserve supply to the point where reserve demand is satiated, but no further. However, because under-supplying reserves is more costly than over-supplying them, robustness to parameter uncertainty calls for an additional buffer in reserve supply.","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"},{"text":"Pagel says that even for high degrees of robustness, the buffer is no larger than two and a half percentage points of bank assets.","excerpt":"But even for high degrees of robustness, the buffer needed is no larger than two and a half percentage points of bank assets.","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"}],"sourceMedia":{"status":"unchecked","sourceUrl":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","checkedAt":null,"items":[]},"assumptions":[],"openQuestion":{"attribution":"Open question","text":"How would the recommended reserve buffer change under conditions unlike those used to calibrate the model?"},"whatWouldChangeView":{"attribution":"Change condition not recorded","text":""},"editorialComparisons":[],"live":{"title":"William Pagel argues in a Bank of England paper for a restrained balance sheet","summary":"Published on 28 August 2026, William Pagel argues in a Bank of England Staff Working Paper that the central bank should supply enough reserves to meet demand, but not provide abundant reserves without limit. In his model, reserves reduce the likelihood and severity of bank runs, while a larger balance sheet can crowd out private investment and misallocate capital because the central bank faces constraints on which securities it can hold. Pagel’s calculations find that, under full information, the optimal supply reaches the point where reserve demand is satiated. Because supplying too few reserves is more costly than supplying too many, he says uncertainty warrants a buffer beyond that point. Even under high degrees of robustness, however, he finds the buffer need not exceed two and a half percentage points of bank assets. His conclusion is that robustness justifies only a modest expansion beyond satiation, not open-ended provision of abundant reserves. The model is calibrated to pre-financial crisis conditions and empirical estimates of the non-linear reserve demand curve; how well that calibration supports the prescription under other conditions remains unknown.","question":"How would the recommended reserve buffer change under conditions unlike those used to calibrate the model?","claims":[{"text":"William Pagel’s Bank of England working paper was published on 28 August 2026.","excerpt":"Published on\n28 August 2026","support":"source-stated"},{"text":"Pagel’s model weighs reserves’ reduction of bank-run risk against costs from a larger central bank balance sheet.","excerpt":"Supplying central bank reserves reduces the likelihood and severity of runs, but comes at a cost: constraints on the set of securities the central bank can hold mean a larger balance sheet crowds out private investment and misallocates capital.","support":"source-stated"},{"text":"Under full information, Pagel finds the optimal reserve supply reaches satiation; uncertainty warrants a buffer, but not open-ended abundant reserves.","excerpt":"Under full information, it is optimal to expand reserve supply to the point where reserve demand is satiated, but no further. However, because under-supplying reserves is more costly than over-supplying them, robustness to parameter uncertainty calls for an additional buffer in reserve supply.","support":"source-stated"},{"text":"Pagel says that even for high degrees of robustness, the buffer is no larger than two and a half percentage points of bank assets.","excerpt":"But even for high degrees of robustness, the buffer needed is no larger than two and a half percentage points of bank assets.","support":"source-stated"}],"limitations":["Text as retrieved on October 23, 2026; originally published August 28, 2026."],"mediaId":null,"correctionReason":null,"id":"6e7747af07468be56b0f7a1c84e59105321d7b7c54f8ab16b33c59f50d85368a","publicationId":"2df86f77-ac59-5598-389c-5a7be3517c7a","version":1,"sourceUrl":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","sourceTitle":"A welfare analysis of the central bank balance sheet","publisher":"Bank of England","publishedAt":"2026-08-28T13:00:00.000Z","originalPublished":{"value":"2026-08-28T13:00:00.000Z","precision":"instant","basis":"backfill:feed_published"},"firstObservedAt":"2026-10-23T21:43:52.869Z","createdAt":"2026-11-06T05:13:24.084Z","historical":true,"entityIds":[],"topicIds":["investment-booms-and-busts"],"media":[],"sourceMedia":{"status":"unchecked","sourceUrl":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","checkedAt":null,"items":[]},"editorialDecision":{"outcome":"accept","mediaId":null,"inputHash":"992e4ed9e1e46e28de43575ab04fecf288e976c9da1d509da5e683f8de34ed0f","rubricVersion":"em-backfill-context/1","provider":"vercel","model":"typesafe-ai/jev","reasonCodes":["bridge_admitted_by_model"],"confidence":0.52,"decidedAt":"2026-10-23T21:43:51.182Z"},"provenance":{"textHash":"d6f064c95d9c64a25f56118360d9105a4381a503aecf7555264ed74f508e17bf","observationId":"1691fbe243e2ff5c02e53221e1ac11a4c4b5fcc1b1afc909420605b12b82412f","retrievedAt":"2026-10-23T21:45:35.394Z","kind":"publisher-page","preparer":{"model":"openai/gpt-6-luna","runId":"aef1f662-ca48-d09e-fbbc-d0a0e9edbdf9"},"reviewer":{"model":"anthropic/claude-opus-5.5","runId":"0cbe2987-ac4f-a158-0bb4-2b7d6151caac"}},"audit":{"status":"uncertain","reviewedAt":"2026-11-06T05:09:48.459Z","model":"anthropic/claude-opus-5.5"}},"canonicalUrl":"https://escapemeridian.com/readings/william-pagel-argues-in-a-bank-of-england-paper-for-a-6e7747af","formats":{"html":"/readings/william-pagel-argues-in-a-bank-of-england-paper-for-a-6e7747af","markdown":"/readings/william-pagel-argues-in-a-bank-of-england-paper-for-a-6e7747af.md","json":"/readings/william-pagel-argues-in-a-bank-of-england-paper-for-a-6e7747af.json"},"attribution":"Headline and summary by Escape Meridian, prepared by Luna from the attributed source. A source check is not independent confirmation of the source’s claims.","maintainedGuideLinks":[],"readerContext":{"version":"reader-context-v1","attribution":"Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement.","terms":[],"entities":[{"id":"buffer","name":"Buffer","kind":"organization","context":"Buffer makes social media management software and publishes company accounts of customer support, team practices and online publishing.","referenceUrls":["https://buffer.com/"],"path":"/entities/buffer","json":"/entities/buffer.json","markdown":"/entities/buffer.md"}]},"researchQuestions":[],"withdrawn":false,"references":{"schemaVersion":1,"target":{"type":"reading","id":"6e7747af07468be56b0f7a1c84e59105321d7b7c54f8ab16b33c59f50d85368a","revision":"2df86f77-ac59-5598-389c-5a7be3517c7a","revisionKind":"publication-id","title":"William Pagel argues in a Bank of England paper for a restrained balance sheet","url":"https://escapemeridian.com/readings/william-pagel-argues-in-a-bank-of-england-paper-for-a-6e7747af"},"source":{"type":"source","id":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","revision":"d6f064c95d9c64a25f56118360d9105a4381a503aecf7555264ed74f508e17bf","revisionKind":"sha256-source-text","title":"A welfare analysis of the central bank balance sheet","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet"},"status":"available","items":[],"next":null,"scope":"Explicit citations in public readings and public file attachments to this reading. Shared topics are not citations. Other artifact types need an explicit reference adapter."},"revisions":[{"id":"6e7747af07468be56b0f7a1c84e59105321d7b7c54f8ab16b33c59f50d85368a","title":"William Pagel argues in a Bank of England paper for a restrained balance sheet","argument":"Published on 28 August 2026, William Pagel argues in a Bank of England Staff Working Paper that the central bank should supply enough reserves to meet demand, but not provide abundant reserves without limit. In his model, reserves reduce the likelihood and severity of bank runs, while a larger balance sheet can crowd out private investment and misallocate capital because the central bank faces constraints on which securities it can hold. Pagel’s calculations find that, under full information, the optimal supply reaches the point where reserve demand is satiated. Because supplying too few reserves is more costly than supplying too many, he says uncertainty warrants a buffer beyond that point. Even under high degrees of robustness, however, he finds the buffer need not exceed two and a half percentage points of bank assets. His conclusion is that robustness justifies only a modest expansion beyond satiation, not open-ended provision of abundant reserves. The model is calibrated to pre-financial crisis conditions and empirical estimates of the non-linear reserve demand curve; how well that calibration supports the prescription under other conditions remains unknown.","topicIds":["investment-booms-and-busts"],"domain":"other","claimType":"attributed reading","limits":"Text as retrieved on October 23, 2026; originally published August 28, 2026.","speaker":{"name":"Bank of England","roleAtSource":"Publisher"},"source":{"title":"A welfare analysis of the central bank balance sheet","publisher":"Bank of England","format":"Article","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","publishedAt":"2026-08-28T13:00:00.000Z","dateBasis":"Date supplied by the publisher’s feed."},"evidence":[{"text":"William Pagel’s Bank of England working paper was published on 28 August 2026.","excerpt":"Published on\n28 August 2026","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"},{"text":"Pagel’s model weighs reserves’ reduction of bank-run risk against costs from a larger central bank balance sheet.","excerpt":"Supplying central bank reserves reduces the likelihood and severity of runs, but comes at a cost: constraints on the set of securities the central bank can hold mean a larger balance sheet crowds out private investment and misallocates capital.","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"},{"text":"Under full information, Pagel finds the optimal reserve supply reaches satiation; uncertainty warrants a buffer, but not open-ended abundant reserves.","excerpt":"Under full information, it is optimal to expand reserve supply to the point where reserve demand is satiated, but no further. However, because under-supplying reserves is more costly than over-supplying them, robustness to parameter uncertainty calls for an additional buffer in reserve supply.","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"},{"text":"Pagel says that even for high degrees of robustness, the buffer is no larger than two and a half percentage points of bank assets.","excerpt":"But even for high degrees of robustness, the buffer needed is no larger than two and a half percentage points of bank assets.","url":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","relationship":"Source-stated"}],"sourceMedia":{"status":"unchecked","sourceUrl":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","checkedAt":null,"items":[]},"assumptions":[],"openQuestion":{"attribution":"Open question","text":"How would the recommended reserve buffer change under conditions unlike those used to calibrate the model?"},"whatWouldChangeView":{"attribution":"Change condition not recorded","text":""},"editorialComparisons":[],"live":{"title":"William Pagel argues in a Bank of England paper for a restrained balance sheet","summary":"Published on 28 August 2026, William Pagel argues in a Bank of England Staff Working Paper that the central bank should supply enough reserves to meet demand, but not provide abundant reserves without limit. In his model, reserves reduce the likelihood and severity of bank runs, while a larger balance sheet can crowd out private investment and misallocate capital because the central bank faces constraints on which securities it can hold. Pagel’s calculations find that, under full information, the optimal supply reaches the point where reserve demand is satiated. Because supplying too few reserves is more costly than supplying too many, he says uncertainty warrants a buffer beyond that point. Even under high degrees of robustness, however, he finds the buffer need not exceed two and a half percentage points of bank assets. His conclusion is that robustness justifies only a modest expansion beyond satiation, not open-ended provision of abundant reserves. The model is calibrated to pre-financial crisis conditions and empirical estimates of the non-linear reserve demand curve; how well that calibration supports the prescription under other conditions remains unknown.","question":"How would the recommended reserve buffer change under conditions unlike those used to calibrate the model?","claims":[{"text":"William Pagel’s Bank of England working paper was published on 28 August 2026.","excerpt":"Published on\n28 August 2026","support":"source-stated"},{"text":"Pagel’s model weighs reserves’ reduction of bank-run risk against costs from a larger central bank balance sheet.","excerpt":"Supplying central bank reserves reduces the likelihood and severity of runs, but comes at a cost: constraints on the set of securities the central bank can hold mean a larger balance sheet crowds out private investment and misallocates capital.","support":"source-stated"},{"text":"Under full information, Pagel finds the optimal reserve supply reaches satiation; uncertainty warrants a buffer, but not open-ended abundant reserves.","excerpt":"Under full information, it is optimal to expand reserve supply to the point where reserve demand is satiated, but no further. However, because under-supplying reserves is more costly than over-supplying them, robustness to parameter uncertainty calls for an additional buffer in reserve supply.","support":"source-stated"},{"text":"Pagel says that even for high degrees of robustness, the buffer is no larger than two and a half percentage points of bank assets.","excerpt":"But even for high degrees of robustness, the buffer needed is no larger than two and a half percentage points of bank assets.","support":"source-stated"}],"limitations":["Text as retrieved on October 23, 2026; originally published August 28, 2026."],"mediaId":null,"correctionReason":null,"id":"6e7747af07468be56b0f7a1c84e59105321d7b7c54f8ab16b33c59f50d85368a","publicationId":"2df86f77-ac59-5598-389c-5a7be3517c7a","version":1,"sourceUrl":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","sourceTitle":"A welfare analysis of the central bank balance sheet","publisher":"Bank of England","publishedAt":"2026-08-28T13:00:00.000Z","originalPublished":{"value":"2026-08-28T13:00:00.000Z","precision":"instant","basis":"backfill:feed_published"},"firstObservedAt":"2026-10-23T21:43:52.869Z","createdAt":"2026-11-06T05:13:24.084Z","historical":true,"entityIds":[],"topicIds":["investment-booms-and-busts"],"media":[],"sourceMedia":{"status":"unchecked","sourceUrl":"https://www.bankofengland.co.uk/working-paper/2026/a-welfare-analysis-of-the-central-bank-balance-sheet","checkedAt":null,"items":[]},"editorialDecision":{"outcome":"accept","mediaId":null,"inputHash":"992e4ed9e1e46e28de43575ab04fecf288e976c9da1d509da5e683f8de34ed0f","rubricVersion":"em-backfill-context/1","provider":"vercel","model":"typesafe-ai/jev","reasonCodes":["bridge_admitted_by_model"],"confidence":0.52,"decidedAt":"2026-10-23T21:43:51.182Z"},"provenance":{"textHash":"d6f064c95d9c64a25f56118360d9105a4381a503aecf7555264ed74f508e17bf","observationId":"1691fbe243e2ff5c02e53221e1ac11a4c4b5fcc1b1afc909420605b12b82412f","retrievedAt":"2026-10-23T21:45:35.394Z","kind":"publisher-page","preparer":{"model":"openai/gpt-6-luna","runId":"aef1f662-ca48-d09e-fbbc-d0a0e9edbdf9"},"reviewer":{"model":"anthropic/claude-opus-5.5","runId":"0cbe2987-ac4f-a158-0bb4-2b7d6151caac"}},"audit":{"status":"uncertain","reviewedAt":"2026-11-06T05:09:48.459Z","model":"anthropic/claude-opus-5.5"}}}],"audits":[{"publicationId":"2df86f77-ac59-5598-389c-5a7be3517c7a","verdict":"uncertain","findings":[{"dimension":"attribution","status":"pass","explanation":"The page is a single Bank of England Staff Working Paper (No. 1,202) by William Pagel. The reading attributes the arguments and findings to Pagel within that paper, which matches the source. It does not present them as official Bank policy.","excerpt":"Staff Working Paper No. 1,202\nWilliam Pagel"},{"dimension":"summary","status":"uncertain","explanation":"The reading tracks the abstract faithfully, including its restrained conclusion and calibration caveat. However, central terms go unexplained for a non-specialist reader, and no definitions are supplied: 'reserves' (bank deposits held at the central bank), 'central bank balance sheet', reserve demand being 'satiated', and 'robustness' to parameter uncertainty. Without these, a reader outside finance may not grasp what is being sized or why. Smallest repair: add brief plain-language glosses or term-library entries for reserves, satiation and robustness.","excerpt":"Under full information, it is optimal to expand reserve supply to the point where reserve demand is satiated, but no further."},{"dimension":"date","status":"pass","explanation":"evidence.originalPublished (2026-08-28T13:00Z) falls on the same UTC day as the page's 'Published on 28 August 2026', and the reading states 28 August 2026. The October 2026 sidebar listings of other working papers are later page content, but the reading neither uses nor relies on them. The reading uses no hindsight framing, and the evidence is a publisher page, not an archive copy.","excerpt":"Published on\n28 August 2026"},{"dimension":"support","status":"pass","explanation":"Each claim matches the abstract: the trade-off between bank runs and crowding out, satiation under full information, a buffer under parameter uncertainty, the cap of two and a half percentage points of bank assets, and the rejection of open-ended abundant reserves. The noted gap about calibration to pre-crisis conditions is framed as unknown rather than asserted, and the question follows from it.","excerpt":"The policy prescription remains restrained: robustness moves the balance sheet modestly beyond satiation, but fails to justify an open-ended provision of abundant reserves."},{"dimension":"media","status":"pass","explanation":"No media was selected, and no verified media candidates were supplied. A null selection is appropriate.","excerpt":null}],"createdAt":"2026-11-06T05:09:48.459Z","model":"anthropic/claude-opus-5.5"}],"correctionUrl":"https://escapemeridian.com/corrections/"}