"Cost" is one of the economics' concept, but now, reflecting the development of society on a perspective of cost theory has becoming a focus of development studies. Cost and development are closely linked, in history, no development is without cost, development always means cost. Price has its inevitability, but not all costs are reasonable.For understanding social development costs, we must pay attention to reasonable and unreasonable price, long-term and short-term price, tangible and intangible price. High material prosperity of modern Western civilization is achieved by the traditional mode of development, while one-sided pursuit of economic growth have made an unprecedented increase on material standards of living ,at the same time it has brought tremendous losses to human development. In a certain sense, sustainable development concept is raised from the perspective of cost,it contains profound sense of price,it is the development of the traditional mode of development, it can avoid unreasonable price brought about by the traditional means, But the achievement of sustainable development also need to pay a price. Price theory tells us that sustainable development is actually searching for a balance between price and the value of state and seeking the maximum development.at minimum cost. Scientific development concept is the inheritance and development of the sustainable development concept,it is a sustainable development theory suited to our nation's conditions . |