32 C. Bencivenga, G. Sargenti, and R.L. D’Ecclesia
- Johansen, S.: Likelihood-based Inference in Cointegrated Vector Autoregressive Models.
Oxford University Press, Oxford (1995) - Mjelde, J.W., Bessler, D.A.: Market integration among electricity markets and their major
fuel source markets. Energy Econ. 31, 482–491 (2009) - Panagiotidis, T., Rutledge, E.: Oil and gas markets in the UK: evidence from a cointegrating
approach. Energy Econ. 29, 329–347 (2006) - Serletis, A., Herbert, J.: The message in North America energy prices. Energy Econ. 21,
471–483 (1999) - Stock, J.H., Watson, M.W.: Testing for common trends. J. Am. Stat. Assoc. 83, 1097–1107
(1988) - Villar, J.A., Joutz, F.L.: The relationship between crude oil and natural gas prices. Energy
Information Administration, Office of Oil and Natural Gas. Washington, D.C. (2006) - Yule, U.: Why do we sometimes get nonsense-correlations between time series? A study
in sampling and the nature of time series. J. R. Stat. Soc. 89, 1–63 (1926)