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.
In your writing, sometimes you may need to include the title of a magazine, the headline of a newspaper article, the title of a song or movie, and so on. In English, when punctuating these magazine titles, headlines, and song or movie titles, keep in mind these two options: Put the title in quotation marks. Quotation marks enclose titles of smaller works or parts of a whole. Set the title off from the rest of the writing with italic or underlining. By using italic or underlining, you set off titles of larger works or complete works.