This study investigates the price linkage among the US major energy sources, considering structural breaks in time series, to provide information for diversifying the US energy sources. We find that only a weak linkage sustains among crude oil, gasoline, heating oil, coal, natural gas, uranium...

The bilateral trade flows between Canada and the US have grown rapidly in the 1990s. Are they evidence of an emerging North American trading bloc? A gravity model of trade finds that while economic size and proximity can explain much of the substantial trade between Canada and the US, the US...