Productivity and wage effects of firm‐level upstreamness: Evidence from Belgian linked panel data

This paper is the first to estimate the impact of a direct measurement of firm‐level upstreamness (i.e. the steps—weighted distance—before the production of a firm meets either domestic or foreign final demand) on productivity and wage costs. To this end, we merged detailed Belgian linked panel data, covering all years from 2002 to 2010, with a unique dataset containing accurate information on the yearly position of each firm in the value chain. We rely on the methodological framework pioneered by Hellerstein et al. (Journal of Labor Economics, 1999, 17, 409) to estimate panel data models at the firm level. Controlling for key worker and firm characteristics, our GMM‐SYS and FE‐IV estimates show that firms positioned more upstream (i.e. further away from the final consumer) create more value. Our results also indicate that the impact of firm‐level upstreamness is stronger on productivity than on wage costs, which implies that profitability is fostered. More precisely, in line with Belgium's strong labour market institutions, our estimates suggest that the productivity gains associated with upstreamness are shared almost equally between wages and profits.