This research analyzes correlations between implementation of unbundling policy toward profit margin per unit and market concentration ratio at gas trading companies, gas supplier for industry. By using unbalanced panel data from 26 companies from 2008 to 2014, with random effect model. In first model, research shows that the unbundling policy has significant negative correlation with profit margin per mmbtu by 21.6 percent. In second model, the result shows that unbundling policy have negative correlation, but not significant with the market concentration ratio. The research recommends to encourage new players, especially private companies, to enter natural gas trading business, and to increase the supply of natural gas and as well as the development of adequate infrastructure.
|Journal||Jurnal Kebijakan Ekonomi|
|Publication status||Published - 2015|