This paper endogenizes the choice between import tariffs and quotas of two policy active countries in a duopsonistic world market. Without uncertainty, import quotas are welfare superior to import tariffs in equilibrium. If two importers can precommit to a type of instrument before deciding the level of the instrument to use in a future period, an import quota equilibrium emerges. We introduce asymmetric risk in the import demand schedule of the two importers. There exists a range of parameters in which a mixed equilibrium emerges; i.e. one country uses a tariff while the other restricts trade with an import quota. The likelihood that both importers choose a different trade instrument in equilibrium is increasing with the correlation coefficient of the two random shocks.
Available at: http://works.bepress.com/jp_gervais/14/