Commercial bank

Definition and stakes

William J. Brennan, Jr. United States v. Philadelphia National Bank…

Commercial banks are unique among financial institutions in that they alone are permitted by law to accept demand deposits. This distinctive power gives commercial banking a key role in the national economy. For banks do not merely deal in but are actually a source of, money and credit; when a bank makes a loan by crediting the borrower's demand deposit account, it augments the Nation's credit supply.
Source: Wikisource

William J. Brennan, Jr. United States v. Philadelphia National Bank…

And the amount of the funds held by commercial banks is very large indeed; demand deposits alone represent approximately three-fourths of the money supply in the United States. [49] Since a bank's assets must be sufficiently liquid to accommodate demand withdrawals, short-term commercial and industrial loans are the major element in bank portfolios, thus making commercial banks the principal source of short-term business credit. Many other services are also provided by banks, but in these more or less collateral areas they receive more active competition from other financial institutions.
Source: Wikisource

Portrait of Franklin D. Roosevelt Franklin D. Roosevelt Looking Forward (1933)

We have witnessed not only the unrestrained use of bank deposits in speculation to the detriment of local credit, but we are also aware that this speculation was encouraged by the government itself. I propose that such speculation be discouraged and prevented.
Investment banking is a legitimate business. Commercial banking is another wholly separate and distinct legitimate business. Their consolidation and mingling are contrary to public policy.
Source: Gutenberg

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