Quality Standards, International Trade and the Evolution of Industries
2017
Gaigné, Carl | Larue, Bruno
We study the impact of public quality standards on industry structure and tradewhen firms may be able to develop their own private standard with a higher quality thanthe public standard. To reach our goal, we introduce vertical differentiation in aninternational trade model based on monopolistic competition in which firms differ in termsof their productivity and select non cooperatively the quality of their product. Firms mustincur two fixed export costs when exporting to any given destination: a generic one (i.e.,setting up a distribution system) and a destination‐specific one to meet the qualitystandard prevailing in the importing country. Variable costs are also increasing in quality.Not surprisingly, the absolute mass of firms in any given country is decreasing in thedomestic standard, but contrary to popular wisdom, the relative mass (market share) offoreign firms is increasing in the domestic standard. A relatively lower (higher) wage(labour endowment) in the exporting country helps foreign firms gain market share in thedomestic market. We also show that the ratio of minimum productivity required forforeign firms and for domestic firms to be active in the domestic market is increasing intrade costs, but decreasing in quality. The implication for public policy is that loweringtariffs and increasing quality standards benefit highly productive foreign firms which gainfrom the quality‐induced exit of less productive domestic and foreign firms. Welfare isconcave with respect to quality and governments have an incentive to impose standards,but some firms have an incentive to impose higher private standards.
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