This paper analyses the degree of market integration in the retail gasoline markets in the United States after it was completely deregulated in 1981. The monthly average prices of unleaded regular gasoline, excluding taxes, from January 1983 to December of 1998 for five US Petroleum...

Chicago and its suburbs are experiencing an increasing demand for water from a growing population and economy and may experience water scarcity in the near future. The Chicago metropolitan area has nearly depleted its groundwater resources to a point where interstate conflicts with Wisconsin...