Where the words come from
Money measured by liquidity; demand and time deposits; debit cards as instructions to move a deposit and credit cards as short-term loans; more cards not changing the quantity of money; US M1 and M2 — Principles of Economics 2e, OpenStax, licensed CC BY 4.0. https://openstax.org/books/principles-economics-2e/pages/27-2-measuring-money-currency-m1-and-m2. Changes: the US M1 and M2 described only to mark them as US measures; demand deposits called sight deposits, and certificates of deposit left out; "checks" became "cheques"; the card paragraph condensed; the placing of each asset in the UK measures, the cards' intro, the mistake note's UK rule and the recap are ours; British spelling.
The overwhelming majority of money in the economy held as bank accounts that exist only as electronic records — Principles of Economics 2e, OpenStax, licensed CC BY 4.0. https://openstax.org/books/principles-economics-2e/pages/27-3-the-role-of-banks. Changes: condensed from the section's opening; the issuers of UK notes, coins and reserves, and the sentence on lending adding to deposits (taught in 27.4), are ours.
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