Enterprises should consider the interests of construction companies must maximize cost control. 要使企业利益最大化就必须考虑施工企业的成本控制。
The behavior in pursuit of self-interest maximization of Local government has obvious externality in regional economic activities. 摘要在区域经济活动中，地方政府追求自身利益最大化的行为会产生明显的外部性。
