Per Ove Eikeland is Senior Research Fellow at the Fridtjof Nansen Institute, Norway. His research interests include European energy and climate policies, national energy transitions and corporate strategies. His main publications include the books Corporate Responses to EU Emissions Trading and Linking EU Climate and Energy Policies. Jon Birger Skjærseth is Research Professor at the Fridtjof Nansens Institute, Norway. His research interests include international environmental cooperation, EU climate and energy policies and corporate strategies. He has published numerous articles and books, including Corporate Responses to EU Emissions Trading and Linking EU Climate and Energy Policies.