Is environmental regulation bad for competition? A survey

Theoretical and empirical research points to environmental regulation affecting the vigour of competition in product markets. We provide a critical, selective survey of that research. Environmental regulations can advantage large firms over small and raise concentration. They can discourage entry in their own right, and provide instruments with which incumbents can discourage entry strategically. They can provide the basis for predatory behavior by incumbents. Policy governance needs to be coordinated sufficiently to ensure that these secondary effects are accounted for in policy design. Cost-benefit evaluation of environmental policies that fail to account for likely detrimental impacts on product market competition will overstate the net benefits.