International R&D Rivalry and Industrial Strategy

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Abstract
This paper presents a theory of government intervention which provides an explanation for "industrial strategy" policies such as R&D or export subsidies in imperfectly competitive international markets. Domestic net welfare improves by capturing a greater share of the output of rent earning industries, although the subsidy-ridden noncooperative international equilibrium is jointly suboptimal. Behaviour of governments and firms is modelled as a three-stage subgame perfect Nash equilibrium. The assumption that government is the first player allows it to influence equilibrium outcomes by altering the set of credible actions by the firm.

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