The price of money, as the price of any financial asset, can be determined through asset pricing theory. Based on this approach, this paper presents a concise survey of the following topics of monetary theory: i) price of money: bubbles versus fundamentals; ii) multiple equilibria; iii) price level indeterminacy; iv) optimum quantity of money; v) hyperinflation; vi) currency substitution, and vii) price of money rigidity.