The European Union (EU) has redefined the energy sphere in Europe over the last three decades. Transnational policies targeting liberalization and integration, energy efficiency, renewables, carbon pricing, and energy security have led to major steps forward in terms of a more secure,...

Under which conditions unilateral tightening of climate policy causes a weak or strong green paradox or even decreases social welfare has recently been studied by Hoel (2011). Hoel assumes that the costs of extracting fossil fuel are linear in output. We extend his model by allowing for...