Structure industrielle et développement local du littoral tunisien, 1998-2004

</titre> The aim of this paper is to study the impacts of the local industrial structure (specialization, diversity, competitiveness and the firm?s size), of the wages and of the foreign direct investments on the productive performance of manufacturing plants in terms of added value using a panel data model. For five industrial sectors among 138 delegations of the coastal area of Tunisia over the period 1998-2004, our results show that specialization, diversification and competition are beneficial for the industrial development. Our study shows also that large size plants are more productive and that the foreign direct investments have negative impacts on the added value.