Thirdly, let us pay attention to the social status of these supporters. On a large scale, these supporters process the means of production and techniques, which compose to the main body of social economy. The situation that they process economic base but lack in political power limits them from achieving further development. On this occasion, they want to break the old institution and build a new one which is on behalf of them. Not only do these people have the most imperative motivation but also process the sufficient material base, so they are capable of doing what they want to do. As a result, the people with sufficient material base can give impetus to the change of political institution.

All in all, the backward of economy will bring about the formation of political institution, while the imbalance of economy can result in the evaporation. Economy is both the motivation and capacity of changing institutions, and it simultaneously decides whether people are willing to reform or capable to reform. As a result, economy is the necessary factor of the change of political institution.