William Pagel argues in a Bank of England paper for a restrained balance sheet

William Pagel argues in a Bank of England paper for a restrained balance sheet

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.

Publication: 2df86f77-ac59-5598-389c-5a7be3517c7a

attribution — pass: 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.

Staff Working Paper No. 1,202 William Pagel

summary — uncertain: 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.

Under full information, it is optimal to expand reserve supply to the point where reserve demand is satiated, but no further.

date — pass: 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.

Published on 28 August 2026

support — pass: 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.

The policy prescription remains restrained: robustness moves the balance sheet modestly beyond satiation, but fails to justify an open-ended provision of abundant reserves.

media — pass: No media was selected, and no verified media candidates were supplied. A null selection is appropriate.