Pass-through of wholesale price to the end user retail price in the Norwegian electricity market

In this paper we estimate the pass-through of wholesale electricity price to the end consumer price with variable price contracts in the Norwegian electricity market using weekly data. We find substantial asymmetry when retailers pass on the impact of price changes in the wholesale market to the retail prices as price increases are transmitted more quickly than price decreases. By examining the cumulative adjustment function of price change, we identify that some dominant retailers might be exercising market power in the retail electricity market. For an average Norwegian household with variable price contract, the cost of asymmetric price pass-through due to 2.5Ore/kWh change in the wholesale price over the complete life of pass-through in a year reaches to a high of 2.28 NOK. This cost sums up to 3.8 million NOK for all the Norwegian households on variable price contracts for one time price change. To deal with this asymmetric price setting behavior, end consumers should switch to spot price contracts and make use of “smart grid” technologies.

[1]  M. Lu,et al.  Dynamic Structure of Disequilibrium Models , 1998 .

[2]  Victor Ginsburgh,et al.  Adjustment costs, concentration and price behaviour , 1988 .

[3]  Catherine D. Wolfram,et al.  Measuring Duopoly Power in the British Electricity Spot Market , 1999 .

[4]  S. Borenstein,et al.  Do Gasoline Prices Respond Asymmetrically to Crude Oil Price Changes , 1997 .

[5]  Wojciech W. Charemza,et al.  New Directions in Econometric Practice: General to Specific Modelling, Cointegration and Vector Autoregression , 1991 .

[6]  Ronald N. Johnson.  Search Costs, Lags and Prices at the Pump , 2002 .

[7]  Monica Giulietti,et al.  Estimation of Search Frictions in the British Electricity Market , 2014 .

[8]  Petter Vegard Hansen,et al.  Electricity Retailing in Norway , 2009 .

[9]  K. Lai,et al.  A threshold cointegration analysis of asymmetric price transmission from crude oil to gasoline prices , 2005 .

[10]  M. Manera,et al.  Econometric Models of Asymmetric Price Transmission , 2005 .

[11]  James Bushnell,et al.  Market Power in Electricity Markets: Beyond Concentration Measures , 1999 .

[12]  P. Lewis,et al.  A Mixed Nordic Experience: Implementing Competitive Retail Electricity Markets for Household Customers , 2006 .

[13]  Helmut Thome.  Party mandate theory and time-series analysis: a methodological comment , 1999 .

[14]  M. Waterson,et al.  Strategic change in the market for domestic electricity in the UK , 2003 .

[15]  James D. Hamilton,et al.  Why Are Prices Sticky? The Dynamics of Wholesale Gasoline Prices , 2003 .

[16]  David F. Hendry,et al.  Co-Integration, Error Correction, and the Econometric Analysis of Non-Stationary Data , 1993, Advanced texts in econometrics.

[17]  W. Enders,et al.  Cointegration and Threshold Adjustment , 1998 .

[18]  P. Diamond.  A model of price adjustment , 1971 .

[19]  S. Littlechild.  Competition and contracts in the Nordic Residential Electricity Markets , 2006 .

[20]  V. Salas-Fumás,et al.  Market power and bank interest rate adjustments , 2005 .

[21]  Stephen Littlechild,et al.  Wholesale Spot Price Pass-Through , 2003 .

[22]  L. Bettendorf,et al.  Price asymmetry in the Dutch retail gasoline market , 2003 .

[23]  Matteo Manera,et al.  Asymmetric Error Correction Models for the Oil-Gasoline Price Relationship , 2005 .

[24]  S. Peltzman.  Prices Rise Faster than They Fall , 2000, Journal of Political Economy.

[25]  J. Madsen,et al.  Asymmetric price adjustment in a menu-cost model , 1998 .

[26]  R. Bacon.  Rockets and feathers: the asymmetric speed of adjustment of UK retail gasoline prices to cost changes , 1991 .

[27]  S. Borenstein,et al.  Sticky Prices, Inventories, and Market Power in Wholesale Gasoline Markets , 1996 .

[28]  J. Tirole,et al.  Retail Electricity Competition , 2004 .