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Spatial Effects in Prices in Natural Gas Retail Markets

 |  January 29, 2019

By John Garcia & Hermilson Velasquez (Universidad EAFIT), Carlos Montenegro

The gas distribution system for natural gas vehicles (NGV) in the Service Stations (EDS) in Colombia is highly concentrated, which gives the retail distributors market power. The pricing mechanism appears to approximate a Bertrand type of oligopolistic model, with a dominant firm setting the prices. The geographical location of the EDS generates strategies that influence price formation. In this research, a spatial contiguity matrix is designed, which includes socio-economic and distance characteristics, related to the EDS geographic location. We use a spatial panel model of Durbin type, which includes fundamental variables to explain the GNV price formation.

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