The question of who commands the money conceals a second question: what, exactly, can be commanded? The central bank can set terms on its own liabilities and operations. It cannot order every business to borrow, every bank to lend, or every household to spend at the desired moment. Yet its decisions reach all three, through the conditions on which payments settle and credit is priced. The Governor stands between two temptations in the account of monetary power. One imagines a public hand turning a single tap that determines every deposit in the economy. The other imagines private money growing beyond any public influence. The work of governing lies in the connections between the public settlement asset and the many private decisions made in its name.
The Bank of England's account of money creation makes the connection concrete. A bank loan ordinarily creates a matching deposit; it does not merely hand over a deposit someone else has already saved. That capacity is constrained by profitability, risk, funding, regulation, and borrowers' willingness to borrow. The central bank influences the terms of this activity through its policy rate and the provision of settlement balances, while the deposits remain liabilities of commercial banks. Thus an individual bank must attend to the payments that leave it, even when the banking system as a whole creates new deposits by lending. The authority governs a system of balance sheets and incentives. It does not allocate a fixed heap of notes among borrowers and call the division complete.1
Interest is one of its principal instruments, but the word price must be used carefully. A rate of interest prices a claim across time; it is not the same thing as money's purchasing power over goods. Suppose a business expects a project costing 100 to return 107 in a year. At a financing cost of five, the expected margin before other costs is two; at nine, it is minus two. A higher borrowing rate can therefore turn a desired project into one the business declines. The example assumes the expected receipts and other conditions are unchanged. In practice they may move too, and different borrowers face different spreads above the policy rate. The Governor affects the choice through a price, but the eventual investment depends on the whole calculation, not on that price in isolation.2
The real burden also depends on expected inflation. A loan carrying 5% interest when prices are expected to rise 2% has an expected real gross repayment factor of 1.05 divided by 1.02, or roughly 1.0294. If expected inflation rises to 6% while the nominal rate remains 5%, that factor becomes about 0.9906. The same posted rate accompanies different expected real terms. This is why a nominal rate cannot by itself tell the observer how restrictive policy is. Nor can a committee know every relevant expectation, the sustainable pace of output, or the delay with which its action will work. Governing through interest requires judgment about conditions that are partly hidden and changing, and an account of uncertainty is part of competent command rather than an excuse for its absence.3
An asset purchase makes another distinction visible. Suppose the central bank buys a bond worth 100 from a pension fund, settling through the fund's bank. The fund exchanges the bond for a deposit; the bank gains a reserve asset and owes a matching deposit; the central bank gains the bond and issues reserves. These are changes in the composition and distribution of financial claims, not the appearance of 100 units of free wealth in the commercial bank. The transaction may influence asset prices, portfolios, and spending, but the reserve balance is not then handed to a household as a loan. The monetary consequence depends on what people do with their altered holdings and terms. Counting new reserves alone cannot tell the whole story of what follows in production or prices.4
A mandate is needed because these instruments distribute consequences even when they pursue a general objective. Higher financing costs bear differently on a debt-free saver and a firm that must refinance tomorrow; a stabilization that prevents a collapse may benefit both without benefiting them equally. Independence can protect a monetary authority from a demand to postpone every painful choice until after an election. It cannot supply the legitimate objective, settle every conflict between objectives, or make the authority answerable to no one. The useful institutional question is which decisions are delegated, under what instruction, with what explanation and review. A fixed rule reduces some discretion but may fit a new shock badly; discretion permits adaptation but asks the public to trust the judgment and restraint of its holder.5
The Governor therefore commands certain instruments and influences an economy whose decisions remain dispersed. Its power is substantial because settlement, credit, and expectations connect its balance sheet to the plans of others; its limits are substantial because those connections do not transmit every instruction mechanically. The answer to market or state is an arrangement between them, whose merits depend on whether it preserves credible money while allowing useful production and exchange. A rule must survive circumstances, and discretion must survive accountability. The next plate considers an attempt to replace the official's discretionary authorship with a distributed protocol. The Coin promises that the monetary rule can live in a network; the question is what that removes from the Governor's hands, and what remains to be governed elsewhere.