> I'm sorry I just can’t find a single source backing you up.
As adastra22 points out: some authors define the term inflation primarily as the increase in the money supply (“monetary inflation”), others primarily as an increase in (consumer good) prices (“price inflation”).
At least in modern economic literature and usage, the term “inflation” (without modifier) is more often used to denote price inflation rather than monetary inflation.
The insistence that the term “inflation” ought be primarily rather used for “monetary inflation” goes back to at least Ludwig von Mises, The Theory of Money and Credit, 1912:
“In theoretical investigation there is only one meaning that can rationally be attached to the expression inflation: an increase in the quantity of money (in the broader sense of the term, so as to include fiduciary media as well), that is not offset by a corresponding increase in the need for money (again in the broader sense of the term), so that a fall in the objective exchange-value of money must occur.”
As adastra22 points out: some authors define the term inflation primarily as the increase in the money supply (“monetary inflation”), others primarily as an increase in (consumer good) prices (“price inflation”).
At least in modern economic literature and usage, the term “inflation” (without modifier) is more often used to denote price inflation rather than monetary inflation.
The insistence that the term “inflation” ought be primarily rather used for “monetary inflation” goes back to at least Ludwig von Mises, The Theory of Money and Credit, 1912:
“In theoretical investigation there is only one meaning that can rationally be attached to the expression inflation: an increase in the quantity of money (in the broader sense of the term, so as to include fiduciary media as well), that is not offset by a corresponding increase in the need for money (again in the broader sense of the term), so that a fall in the objective exchange-value of money must occur.”