Modern analysis has attempted to provide microfoundations for the demand for money and to distinguish valid nominal and real monetary relationships for micro or macro uses, including their influence on the aggregate demand for output.   • _____, 1987. "Money and Markets". Cambridge. Description and chapter-preview.   • David Laidler, 1988. "Taking Money Seriously," "Canadian Journal of Economics", 21(4), pp. 687–713.    • _____, 1993. "The Demand for Money: Theories, Evidence, and Problems", 4th ed. Description.   • _____, 1997. "Notes on the Microfoundations of Monetary Economics," "Economic Journal", 107(443), pp. 1213–1223.    • Don Patinkin, 1965, 2nd ed. "Money, Interest and Prices: An Integration of Monetary and Value Theory". New York: Harper and Row. Introduction to 1990 MIT edition (PDF), and 1991 evaluation by Stanley Fischer.   • Michael Woodford, 2003. "Interest and Prices: Foundations of a Theory of Monetary Policy", Princeton University Press. Description and Table of Contents. .</ref> Its methods include deriving and testing the implications of money as a substitute for other assets   • _____ with Stephen S. Golub, 1998. "Money, Credit, and Capital". Irwin/McGraw-Hill. TOC.   • Stephen M. Goldfeld and Daniel E. Sichel, 1990. "The Demand for Money," in "Handbook of Monetary Economics", v. 1, pp. 299-356. Outline. Elsevier.   • Subramanian S. Sriram, 2001. "A Survey of Recent Empirical Money Demand Studies," "IMF Staff Papers", 47(3). International Monetary Fund. pp. 334-65.</ref> and as based on explicit frictions.   • Neil Wallace, 2001. "Whither Monetary Economics?," "International Economic Review", 42(4), pp. p. 847-869.   • Ricardo Lagos and Randall Wright, 2005. "A Unified Framework for Monetary Theory and Policy Analysis," "Journal of Political Economy", 113(3], pp. 463-84. </ref>