I. Abada, S. A. Gabriel, V. Briat, and O. Massol, A Generalized Nash-Cournot Model for the Northwestern European Natural Gas Markets with a Fuel Substitution Demand Function: The GaMMES Model, Networks and Spatial Economics, vol.13, issue.1, pp.1-42, 2013.

F. Asche, P. Osmundsen, and R. Tveterås, European Market Integration for Gas? Volume Flexibility and Political Risk, Energy Economics, vol.24, issue.3, pp.249-265, 2002.

E. M. Bailey, The Geographic Expanse of the Market for Wholesale Electricity, 1998.

C. B. Barrett, Market Analysis Methods: Are Our Enriched Toolkits Well Suited to Enlivened Markets?, American Journal of Agricultural Economics, vol.78, issue.3, pp.825-829, 1996.

C. B. Barrett, Measuring Integration and Efficiency in International Agricultural Markets, Review of Agricultural Economics, vol.23, issue.1, pp.19-32, 2001.

C. B. Barrett and J. R. Li, Distinguishing between Equilibrium and Integration in Spatial Price Analysis, American Journal of Agricultural Economics, vol.84, issue.2, pp.292-307, 2002.

B. Baulch, Transfer Costs, Spatial Arbitrage, and Testing for Food Market Integration, 1997.

, American Journal of Agricultural Economics, vol.79, issue.2, pp.477-487

T. Bollerslev, Generalized Autoregressive Conditional Heteroskedasticity, Journal of Econometrics, vol.31, issue.3, pp.307-327, 1986.

S. P. Brown and M. K. Yücel, Deliverability and regional pricing in U.S. natural gas markets, Energy Economics, vol.30, issue.5, pp.2441-2453, 2008.

H. B. Chenery, Engineering Production Functions, The Quarterly Journal of Economics, vol.63, issue.4, pp.507-531, 1949.

J. T. Cuddington and Z. Wang, Assessing the degree of spot market integration for US natural gas: evidence from daily price data, Journal of Regulatory Economics, vol.29, issue.2, pp.195-210, 2006.

C. J. Day and D. W. Bunn, Divestiture of Generation Assets in the Electricity Pool of England and Wales: A Computational Approach to Analyzing Market Power, Journal of Regulatory Economics, vol.19, issue.2, pp.123-141, 2001.

A. De-vany and W. D. Walls, Pipeline Access and Market Integration in the Natural Gas Industry: Evidence from Cointegration Tests, The Energy Journal, vol.14, issue.4, pp.1-19, 1993.

A. Deaton and G. Laroque, Competitive Storage and Commodity Price Dynamics, Journal of Political Economy, vol.104, issue.5, pp.896-923, 1996.

M. J. Doane and D. F. Spulber, Open Access and the Evolution of the U. S. Spot Market for Natural Gas, Journal of Law and Economics, vol.37, issue.2, pp.477-517, 1994.

S. Enke, Equilibrium among Spatially Separated Markets: Solution by Electric Analogue, 1951.

, Econometrica, vol.19, issue.1, pp.40-47

M. Futyan, The Interconnector Pipeline: a Key Link in Europe's Gas Network, p.11, 2006.

R. Golombek, E. Gjelsvik, and K. E. Rosendahl, Effects of liberalizing the natural gas markets in Western Europe, The Energy Journal, vol.16, issue.1, pp.85-111, 1995.

H. G. Huntington, World Natural Gas Markets And Trade: A Multi-Modeling Perspective, 2009.

, Extension to the Parity Bounds Model, American Journal of Agricultural Economics, vol.89, issue.2, pp.338-352

A. Neumann, B. Siliverstovs, and C. Von-hirschhausen, Convergence of European spot market prices for natural gas? A real-time analysis of market integration using the Kalman Filter, 2006.

, Applied Economics Letters, vol.13, issue.11, pp.727-732

H. Park, J. W. Mjelde, and D. A. Bessler, Price interactions and discovery among natural gas spot markets in North America, Energy Policy, vol.36, issue.1, pp.290-302, 2008.

&. Platt, European Natural Gas Assessments and Indices. Methodology and Specification Guide, 1920.

P. Renou-maissant, Toward the Integration of European Natural Gas Markets: A timevarying Approach, Energy Policy, vol.51, pp.779-790, 2012.

A. Rupérez-micola and D. W. Bunn, Two Markets and a Weak Link, Energy Economics, vol.29, issue.1, pp.79-93, 2007.

P. A. Samuelson, Spatial Price Equilibrium and Linear Programming, The American Economic Review, vol.42, issue.3, pp.283-303, 1952.

A. Serletis, Is There an East-West Split in North American Natural Gas Markets?, The Energy Journal, vol.18, issue.1, pp.47-62, 1997.

R. Sexton, C. Kling, and H. Carman, Market Integration, Efficiency of Arbitrage and Imperfect Competition: Methodology and Application to U, S. Celery. American Journal of Agricultural Economics, vol.73, issue.3, pp.568-80, 1991.

P. T. Spiller and C. J. Huang, On the Extent of the Market: Wholesale Gasoline in the Northern United States, Journal of Industrial Economics, vol.34, pp.131-176, 1986.

P. T. Spiller and R. O. Wood, Arbitrage during the Dollar-Sterling Gold Standard, pp.1899-1908, 1988.

, An Econometric Approach. Journal of Political Economy, vol.96, issue.4, pp.882-892

G. J. Stigler and R. A. Sherwin, The Extent of the Market, Journal of Law and Economics, vol.28, issue.3, pp.555-585, 1985.

T. Takayama and G. C. Judge, Spatial and Temporal Price and Allocation Models, 1971.

M. Vazquez, M. Hallack, and J. Glachant, Designing the European Gas Market: More Liquid & Less Natural?, Economics of Energy & Environmental Policy, vol.1, issue.3, pp.25-38, 2012.

M. A. Weinstein, The Sum of Values from a Normal and a Truncated Normal Distribution, Technometrics, vol.6, pp.104-109, 1964.