EVANS, LEWIS; GUTHRIE, GRAEME; VIDEBECK, STEEN - In: Contemporary Economic Policy 26 (2008) 1, pp. 145-161
"Market power in electricity wholesale spot markets is more likely if there is market segmentation. We show that principal component analysis is a natural tool for the qualitative and quantitative assessment of the presence of local markets. We study whether the New Zealand market has been a...