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A robust model of the convenience yield in the natural gas market
Author(s) -
Volmer Thomas
Publication year - 2011
Publication title -
journal of futures markets
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.88
H-Index - 55
eISSN - 1096-9934
pISSN - 0270-7314
DOI - 10.1002/fut.20504
Subject(s) - futures contract , yield (engineering) , robustness (evolution) , econometrics , economics , futures market , variance (accounting) , natural gas , linear model , econometric model , convenience yield , variable (mathematics) , spot contract , financial economics , mathematics , statistics , chemistry , thermodynamics , physics , mathematical analysis , biochemistry , accounting , organic chemistry , gene
This study advances the research on the convenience yield of natural gas. Econometric models confirm that air temperature is an important explanatory variable in addition to storage levels. Furthermore, an extended linear model shows that one has to account for a changing cost of physical storage in the spirit of Brennan (1958). Besides this, an alternative regime‐switching model for the convenience yield helps to put in perspective a prominent finding by Fama, and French (1987). That is, given binding capacity constraints for gas storage, the variance of the futures' basis will increase rather than decrease with the storage levels. Finally and most importantly, robustness tests demonstrate that the extended linear model produces the most viable forecasts and that these forecasts can help to amend the performance of reduced‐form models for the gas spot price. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark