Price and output stabilities determine the success of monetary policy in either economy. This paper briefly examines the monetary policy strategies of three developed countries (USA, UK, Sweden) and three developing countries (Bangladesh, India, Pakistan). It is found that the developed countries follow some rule-based monetary policy whereas the developing countries with ill-organised monetary system do not follow the rule- based policy, rather they often formulate and launch policies under some discretionary framework. The fundamental objective of this study is to examine the performance of rule-based monetary policy in developing countries by extracting experience from developed ones. Since its inception in 1993, Taylor rule has become synonymous to monetary policy. But it is a matter of fact that this rule was grounded on the developed economies and numerous researches have been carried out with the same respect disregarding the applicability of this rule to the developing economies. In this paper, I use one simple macroeconomic model to simulate the economies with the Taylor rule as monetary policy.