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Jeudi 1er Octobre 2015


Ariell RESHEF (University of Virginia, USA) 

présentera une communication :

"The March of the Techies: Technology, Trade, and Job Polarization in France, 1994-2007"


de 14 h à 15 h 30 en salle S016 au CREST, 15 Boulevard Gabriel Péri, 92245 MALAKOFF (Métro : Malakoff/Plateau de Vanves (Immeuble "Malakoff 2)).



Abstract :

"Using administrative employee-firm-level data from 1994 to 2007, we show that the labor market in France has become polarized: employment shares of high and low wage occupations have grown, while middle wage occupations have shrunk. During the same period, the share of hours worked in technology-related occupations ("techies") grew substantially, as did imports and exports, and we explore the causal links between these trends. Our paper is the first to analyze polarization in any country using firm-level data. Our data includes hours worked classified into 22 occupations, as well as imports and exports, for every private sector firm. We show that polarization is pervasive: it has occurred within the nonmanufacturing and manufacturing sectors, and both within and between firms. Motivated by the fact that technology adoption is mediated by technically qualified managers and technicians, we use an innovative measure of the propensity to adopt new technology: the firm-level employment share of techies. Using the subsample of firms that are active over the whole period, we show that firms with more techies in 2002 saw greater polarization from 2002 to 2007. Firm-level trade, by contrast, has a small effect on polarization. To control for the endogeneity of firm-level techies and trade in 2002, we use values of techies and trade from 1994 to 1998 as instruments. We also show that firms with more techies in 2002 grew more rapidly from 2002 to 2007, using the same instrumental variable strategy. We conclude that technological change, mediated through techies, is an important cause of polarization in France. Trade is less important."