The UK Market for Natural Gas, Oil and Electricity: Are the Prices Decoupled?
Asche, Frank, Peter Osmundsen and Maria Sandsmark,
The Energy Journal
2006
27(2): 27-40.

Testing for Market Integration: Crude Oil, Coal and Natural Gas
Bachmeir, Lance J. and James M. Griffin (),
The Energy Journal
2006
27(2): 55-71.

The relation between marginal product and price in US energy markets : Implications for climate change policy
Robert K. Kaufmann
Energy Economics,
Volume 16, Issue 2, April 1994, Pages 145-158


谢谢！