"It was thenceforth no longer a question, whether this theorem or that was true, but whether it was useful to capital or harmful, expedient or inexpedient, politically dangerous or not. In place of disinterested inquirers, there were hired prize fighters; in place of genuine scientific research, the bad conscience and the evil intent of apologetic." -- Karl Marx
Suppose you run a restaurant. You think that you could expand if you paved your parking lot or put a deck up out back. You convince your local bank manager. The bank credits their own account with an asset and credits your account with a loan. That asset, for the bank, is a promise from you to pay off the loan, probably as a series of payments. You spend the money in your account by paying a paving or building contractor.
The bank has created money. No third party must first choose to increase their saving rate and deposit money in the bank. You are able to obtain resources to implement plans for increased production.
The author of a prominent introductory textbook for economics has another, confused story:
Financial intermediaries are financial institutions through which savers can indirectly provide funds to borrowers. The term intermediary reflects the role of these institutions in standing between savers and borrowers. Here we consider two of the most important financial intermediaries: banks and mutual funds.
Banks If the owner of a small grocery store wants to finance an expansion of his business, he probably takes a strategy quite different from that of Intel. Unlike Intel, a small grocer would find it difficult to raise funds in the bond and stock markets. Most buyers of stocks and bonds prefer to buy those issued by larger, more familiar companies. The small grocer, therefore, most likely finances his business expansion with a loan from a local bank.
Banks are the financial intermediaries with which people are most familiar. A primary job of banks is to take in deposits from people who want to save and use these deposits to make loans to people who want to borrow. Banks pay depositors interest on their deposits and charge borrowers slightly higher interest on their loans. The difference between these rates of interest covers the banks' costs and returns some profit to the owners of the banks." -- Greg Mankiw. 2018. Principles of Economics, 8th edition p. 545.
Mankiw then goes on with archaic nonsense about loanable funds and government spending crowding out private investment.
Why do economists teach balderdash?
I have been reading J. W. Mason and Arjun Jayadev's new book, Against Money. I have pointed out Mankiw's confusion and foolishness before.
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