In a recent publication in Journal of Economic Behavior and Organization, Poyago-Theotoky (2007) developed a three-stage game model, and also derived theoretical findings and important policy implications for environmental R&D under a time-consistent emission tax. Among the conclusions presented...

This paper presents an examination of the socially desirable formation of environmental R&D in Cournot duopoly in a setting where a regulator has no precommitment ability for an emissions tax. The results reveal that if environmental damage is sufficiently small, alternatively if there is severe...

This paper reexamines the Poyago-Theotoky model and provides additional investigation that was conducted under a corrected environmental damage parameter. As new findings, we obtain the following. First, social welfare under a time-consistent emission tax (emission subsidy) policy is always...