0.20 Keith J. Crocker Thomas P. Lyon, What Do "Facilitating Practices" Facilitate? An Empirical Investigation of Most-Favored-Nation Clauses in Natural Gas Contracts, Journal of Law and Economics, 1994.

{ gas natural coal market }	0.20
{ contract contracts contracting contractual }	0.15
{ supra note law econ }	0.12
{ price market competition monopoly }	0.08

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