2Friedman, B, 1999: "The Future of Monetary Policy: The Central Bank as an Army with a Signal Corps?" NBER Working Paper, No. 7420.
3Heller, D., Lengwiler, Y., 2003: "Payment Obligations, Reserve Requirements, and tile Demand for Central Bank Balances" , Journal of Monetary Economics 50, pp. 419 432.
4Poole, W., 1970: "Optimal Choice of Monetary Policy Instruments in a Simple Stochastic Macro Medel" , Quarterly Journal of Economics, Vol.84, P197-216.
5King, Mervyn, 1999: "Challenge of Monetary Policy: New and Old" , Paper prepared for the Symposium on "New Challenges for Monetary Policy" sponsored by the Federal Reserve Bank of Kansas City at Jackson ltole, Wyoming, 27 August 1999.
6Steinsson, J., 2002: "The Implementation of Monetary Policy in an Era of Electronic Payment Systems" , Working Paper.