Based on the analysis of lakes pollution in Wuhan,this paper further explores the main source of lake pollution,analyses pollution of the lake from both the government and the market in economics perspective,and points out that the radical reason of lakes pollution is the external diseconomy of pollution emissions.

The flow of surplus labor of China s rural areas brings the society a series of external diseconomy in the promotion of industrialization and urbanization.

The rigorous meaning of ecotourism shouldn t include the problem of external diseconomy, which is the premise of sustainable development.

On the external diseconomies of the heritage tourism and its governance strategies;

The essay conducts an analysis of the external diseconomies of webonomics, demonstrating the limitation of traditional externalities theory in solving the problem of the external diseconomies of webonomics, pointing out that government intervention is not an effective means in solving the problem whereas a market-oriented deployment of resources still plays a part.

The transaction of pollution discharge licenses is an economic stimulating method based on market: The seller's economical return from selling the rest valid term of pollution discharge license is a kind of market compensation because it is helpful to reduce the environmental external diseconomics.

Based on the externality theory,this paper presents,from the angle of social cost and welfare,an analysis of the external diseconomics caused by inherent defects in buildings,and the function of inherent defects insurance system to reduce this kind of negative effect,and demonstrates the necessity and value of inherent defects insurance system.

The property of the Quasi-common Pool Resource also leads to the external diseconomics in its development.

A Study of the Negative Externality of Tourism Operation;

SME are an important force for growth of the national economy,But in the course of development and not by exterior extravagance problems of distress.