Abstract
The purpose of this study is to build a statistical model, which describes consensus formation process, and to analyze its process quantitatively. The model built in this study is using Markovian process with continuous time and discrete set of events The state of the process will be the number of people in the society convinced about plan. There are three parameters in this model namely preference, adaptation trend and flexibility. These parameters are considered as factors of individual decision-making process. Applying this model to the real society, we can estimate these three parameters. With the experimental consideration, it should be clear that this model could describe the real world.