Policy insights Policy Insight 120: Electricity market design: Views from European economists Stefan Ambec Albert Banal-Estanol Estelle Cantillon Claude Crampes Anna Creti Francesco Decarolis Natalia Fabra Reyer Gerlagh Karsten Neuhoff Camille Landais Matti Liski Gerard Llobet David Newbery Michele Polo Mar Reguant Sebastian Schwenen Iivo Vehviläinen