Since hyperinflation is visible as a monetary effect, models of hyperinflation center on the demand for money. Economists see both a rapid increase in the money supply and an increase in the velocity of money if the (monetary) inflating is not stopped.heories of hyperinflation generally look for a relationship between seigniorage and the inflation tax. In both Cagan's model and the neo-classical models, a tipping point occurs when the increase in money supply or the drop in the monetary base makes it impossible for a government to improve its financial position.
The comma is not part of the title, so the comma does not belong inside the quote. Therefore in this context you put the comma after the quote, like so: According to Astrophysics: Growing Rapidly, astrophysics is a rapidly growing field.
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