In this paper, we test whether producers in the southern Norway price zone utilize information on available transmission capacity to induce transmission congestion in their price zone to exercise market power or not. Endogeneity results for import congestion suggest that congestion is endogenous during late night and morning hours implying that producers in southern Norway restrict their output to induce transmission congestion into their price zone. We find an average markup of about 19.5 percent above the marginal cost during these hours. These results point that NordPool’s policy of making transmission capacity information public to ensure market transparency is not welfare maximizing as strategic producers can use this information to anticipate and induce transmission congestion into their price zone for driving prices away from the competitive levels.
AmundsenE. S.BergmanL. (2006). “Why has the Nordic electricity market worked so well?” Utilities Policy14(3): 148-157. http://dx.doi.org/10.1016/j.jup.2006.01.001.
2.
AndrewsD. W. K. (1991). “Heteroskedasticity and Autocorrelation Consistent Covariance Matrix Estimation.” Econo-metrica59(3): 817-858. http://dx.doi.org/10.2307/2938229.
3.
ArellanoM. S. (2004). “Market Power in Mixed Hydro-Thermal Electric Systems.” Working paper. Centro de Economia Aplicada, Departmento de Ingenieria Industrial, Universidad de Chile.
4.
BaldickR.GrantR.KahnE. (2004). “Theory and application of linear supply function equilibrium in electricity markets.” Journal of Regulatory Economics25: 143-167. http://dx.doi.org/10.1023/B:REGE.0000012287.80449.97.
5.
BaskM.LundgrenJ.RudholmN. (2009). “Market power in the expanding Nordic power market.” Applied Economics43(9): 1035-1043. http://dx.doi.org/10.1080/00036840802600269.
6.
BorensteinS,, J. Bushnell and C. R. Knittel (1999). “Market Power in Electricity Markets: Beyond Concentration Measures.” The Energy Journal20(4): 65-88. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol20-No4-3.
7.
BorensteinS.BushnellJ.StoftS. (2000). “The competitive effects of transmission capacity in a deregulated electricity industry.” Rand Journal of Economics31(2): 294-325. http://dx.doi.org/10.2307/2601042.
8.
BorensteinS.BushnellJ. B.WolakF. A. (2002). “Measuring Market Inefficiencies in California’s Restructured Wholesale Electricity Market.” The American Economic Review92(5): 1376-1405. http://dx.doi.org/10.1257/000282802762024557.
9.
BresnahanT. F. (1989). Empirical studies in industries with market power. In: Schmalensee, R. and Willig, R. D. (eds.) Handbook of industrial organization. Elsevier, 2, 1011–1057.
10.
BunnD.ZachmannG. (2006). “Market power in transmission auctions.” Unpublished manuscript.
11.
BushnellJ. (1999). “Transmission rights and market power.” The Electricity Journal12: 77-85. http://dx.doi.org/10.1016/S1040-6190(99)00074-3.
12.
BushnellJ. (2003) “A mixed complementarity model of hydro thermal electricity competition in the western U.S.” Operations Research51(1): 81-93. http://dx.doi.org/10.1287/opre.51.L80.12800.
13.
ChoI. K.KimH. (2007). “Market power and network constraint in a deregulated electricity market.” The Energy Journal28(2): 1-34. http://dx.doi.org/10.5547/ISSN0195-6574-EJ-Vol28-No2-1.
14.
CramesC.MoreauxM. (2001). “Water resource and power generation.” International Journal of Industrial Organization19(6): 975-997. http://dx.doi.org/10.1016/S0167-7187(99)00052-1.
15.
DamsgaardN.SkredeS.TorgersenL. (2007). “Exercise of market power in the Nordic power market. Market Power in the Nordic Power Market.” Econ-PM nr 2007-N-2007-068, Projekt nr. 50830.
16.
F0rsundF. R. (2007). Hydropower Economics. Springer - Verlag. http://dx.doi.org/10.1007/978-0-387-73027-1.
17.
GarciaA.ReitzesJ. D.StacchettiE. (2001). “Strategic pricing when electricity is storable.” Journal of Regulatory Economics20(3): 223-247. http://dx.doi.org/10.1023/A:1011151409081.
18.
GilbertR.NeuhoffK.NewberyD. (2004). “Allocating Transmission to Mitigate Market Power in Electricity Networks.” The RAND Journal of Economics35(4): 691-709. http://dx.doi.org/10.2307/1593768.
19.
GreenR.NewberyD. (1992): “Competition in the British Electricity Spot Market.” Journal of Political Economy100(5): 929-953. http://dx.doi.org/10.1086/261846.
HansenP. V. (2009). “Inflow uncertainty and hydropower markets.” Scandinavian Journal of Economics111(1): 189-207. http://dx.doi.org/10.1111/j.1467-9442.2008.01559.x.
22.
HarveyS.HoganW. W. (2000). “Issues in the Analysis of Market Power in California.” Unpublished manuscript.
23.
HausmanJ. A. (1978). “Specification Tests in Econometrics.” Econometrica46(6): 1251-1271. http://dx.doi.org/10.2307/1913827.
24.
HayashiF. (2000). Econometrics, Princeton University Press.
25.
JohnsenT. A. (2001). “Hydropower generation and storage, transmission and market power.” Utilities Policy10(2): 6373. http://dx.doi.org/10.1016/S0957-1787(02)00037-1.
26.
JohnsenT. A.VermaS. K.WolframC. D. (1999). “Zonal Pricing and Demand-Side Bidding in the Norwegian Electricity Market.” Working Paper PWP-063. University of California Energy Institute, Berkeley.
27.
JoskowP. L.TiroleJ. (2000). “Transmission Rights and Market Power on Electric Power Networks.” The RANDJournal of Economics31(3): 450-87. http://dx.doi.org/10.2307/2600996.
28.
LeeL.-F.H.PorterR. (1984). “Switching Regression Models with Imperfect Sample Separation Information--With an Application on Cartel Stability.” Econometrica, 52(2): 391-418. http://dx.doi.org/10.2307/1911495.
29.
L0land Ferkingstad A. E.WilhelmsenM. (2012). “Forecating Transmission Congestion.” The Journal of Energy Markets5(2): 65-83.
30.
MansurE. T. (2008). “Measuring welfare in restructured electricity markets.” Review of Economics and Statistics90(2): 369-386. http://dx.doi.org/10.1162/rest.90.2.369.
31.
MirzaF. M.BerglandO. (2012). “Transmission Congestion and Market Power: The case of the Norwegian Electricity market.” The Journal of Energy Markets5(2): 59-88.
32.
MusgensF. (2006). “Quantifying market power in the German wholesale electricity market using a dynamic multi-regional dispatch model.” Journal of Industrial Economics54(4): 471-498. http://dx.doi.org/10.1111/j.1467-6451.2006.00297.x.
33.
NeuhoffK. (2003). “Integrating Transmission and Energy Markets Mitigates Market Power.” Cambridge Working Papers in Economics. Faculty of Economics, University of Cambridge.
34.
NordEl (2008). Principles for determining the transfer capacity in the Nordic market. NordPool Spot.
35.
NordReg (2007). Congestion management in the Nordic region: a common regulatory opinion on congestion management. Nordic Energy Regulators.
36.
PorterR. H. (1983a). “Optimal cartel trigger price strategies.” Journal of Economic Theory29(2): 313-338. http://dx.doi.org/10.1016/0022-0531(83)90050-9.
37.
PorterR. H. (1983b). “A Study of Cartel Stability: The Joint Executive Committee, 1880-1886.” The Bell Journal of Economics14(2): 301-314. http://dx.doi.org/10.2307/3003634.
38.
SteenF. (2005). “Do bottlenecks generate market power?: an empirical study of the Norwegian electricity market.” Discussion Paper. Norwegian School of Economics and Business Administration.
39.
StoftS. (1997). “How Financial Transmission Rights Curb Market Power.” Ernest Orlando Lawrence Berkeley National Laboratory, University of California. http://dx.doi.org/10.2172/539519.
40.
StoftS. (2002). Power System Economics: Designing Markets for Electricity, Wiley-IEEE Press. http://dx.doi.org/10.1109/9780470545584.
41.
von der Fehr, N. H. M. (2013). “Transperancy in Energy Markets.” Economics of Energy and Environmental Policy2(2): 87-105. http://dx.doi.org/10.5547/2160-5890.2.2.5.
42.
WeronR. (2006). Modeling and Forecasting Electricity Loads and Prices: A Statistical Approach (The Wiley Finance Series), Wiley. http://dx.doi.org/10.1002/9781118673362.
43.
WolframC. D. (1999). “Measuring duopoly power in the British electricity spot market.” American Economic Review89(4): 805-826. http://dx.doi.org/10.1257/aer.89.4.805.
44.
WooldridgeJ. (2010). Econometric Analysis of Cross Section and Panel Data, The MIT Press.
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