The theory of regulational public enforcement is becoming a hot study area of the new comparative economics.

Referring to the development of China s economic theories after 1978,this paper discusses the influence of comparative economics over the development of Chinese economic theories and the role it has played.

This article, by application of comparative economics, is dedicated to analyze loan costs in different conditions and conclude that minimization of costs can be achieved by small and medium-sized enterprise s introducing professional credit guarantee organization, as well as borrower, commercial bank and guarantee organization.

The paper analyzes the land requisition system in new period from perspective of comparative system economics since the new Land Management Law is put into effect from 1998.

Based on the framework of new comparative economics,from the viewpoint of formal and informal finance,the paper explores the logic of China s rural financial reform since 1978.

Along with the collapse of Socialist countries in the Soviet Union and Eastern Europe one after another during the early 90s at the 20th century,the old comparative economics has had no target for comparison ever since,and also provided the condition for the creation of new comparative economics.

The accumulation of related achievements by comparison study in economic geography study facilitate comparative economic geography s emerging.