It is very difficult to wipe out the counterfeit and inferior goods in one country,
even though possible, it is uneconomical. What we quest for is a moderate control that
measures up to the economic balance law, and is accepted by the consumer. Starting fromthis
purpose, this paper analyzes the moderate controlling problem of the government and
enterprises to fight against the counterfeit and inferior goods, and derives an optimal region for
the enterprises to invest and the functions aboutthe sales income and the investment in fighting
against the counterfeit and inferior goods. Furthermore, this paper qualitatively arrives at the
optimal scale for the government to fight against the counterfeit and inferior goods by applying
the microeconomy-analyzing method.