Dynamic Games and Applications

, Volume 8, Issue 3, pp 519–541 | Cite as

Nurturing an Infant Industry by Markovian Subsidy Schemes

  • Hassan Benchekroun
  • Ngo Van Long


We model a small open economy with an infant industry facing competition from imports. We derive the welfare maximizing output path and knowledge path for an infant industry under the central planner who can dictate the industry output. We next show how the social planner’s optimal path can be achieved when the infant industry is in private hand, focusing on two cases: the case where the infant industry consists of a monopoly and the case where it is a duopoly. In the case of a monopoly we show that free trade can induce the monopoly to choose the socially optimal production path. Contrary to conventional wisdom, we show that the volume of imports is large when the stock of knowledge is small, and gradually declines as this stock grows. In the case of a duopoly with knowledge spillovers we derive a family of subsidy rules capable of inducing a Markov perfect Nash equilibrium that replicates the social optimum. When the subsidy rule is linear affine in the state variable, we show that the subsidy rate per unit of output must be an increasing function of the stock. The underlying intuition is that the government should put domestic firms under a tough competition in their infancy with a promise to make their life easier as their knowledge grows.


Infant industry Markovian subsidies Differential games Trade 



We would like to thank Georges Zaccour (the handling editor of this paper) and two anonymous reviewers for their helpful suggestions. We are grateful to Murray C. Kemp and J. Peter Neary for their comments on an earlier version of this paper. Both authors thank the Social Sciences and Humanity Research Council of Canada (SSHRC) and Quebec’s funding agency FRQSC for financial supports.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.McGill UniversityMontrealCanada

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