摘要

I examine the problem of apportioning liability among competing firms in an industry where the environmental damage is a joint product of the actions taken by all firms. In particular, I analyze the effect of alternative apportionment rules on adoption and strategic diffusion of pollution abatement technology. In a duopoly where industry wide technological diffusion is welfare enhancing, I characterize the second-best optimal apportionment rules. Inducing technology transfer requires placing a larger burden of the liability on the ex ante cleaner firm i.e., the one with a more efficient abatement technology.

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