THE MEASUREMENT OF ECONOMIC FLOW OF SHANGHAI METROPOLITAN REGIONS
基于城市间经济联系程度，测度上海大都市区的人流、信息流和货物流，并建立三者与GDP的线性回归方程，揭示核心城市与周边城市的经济联系。
Metropolitan regions’ economic flow is the flow of essential factors and products that result from economic connections among cities.Based on analyses of the degree of economic connections among different cities,we measure people flow,information flow and the flow of goods transported.Then we establish an equation of linear regression between the three kinds of flow and GDP,which reveals the clues and significance of economic connections between core city and surrounding cities.