Import competition, productivity and multi-product firms

Using detailed firm-product level quarterly data, we develop an estimation framework of a Multi-Product Production Function (MPPF) and analyse firm-product level TFP estimations at various levels (industries, products). After documenting our estimation results, we relate productivity estimates with import competition, using firm and product level measures of import competition. We find that if productivity at the firm level tends to positively react to increased import competition, the multi-product firms response varies according to the relative importance of the product that faces stronger i... Mehr ...