Statistical agencies typically impute inflation for disappearing products based on surviving products, which may result in overstated inflation and understated growth. This paper uses the theory and methodology developed by Aghion et al. (2017) to quantify in the case of France how much of...

We use French microdata to test an ubiquitous property of firm-based models of importing. When firm efficiency is factor neutral and input prices and qualities are common across firms, firm size should have no effect on expenditure shares on the different products and varieties sourced, holding...