This breakdown ofthe diffusion machine may be leading to a widening (new) digital divide between (frontier) firms that are able to take advantage of digitalisation, and the rest of an economy. Non-frontier firms" is the average of all other firms. “ All firms” is the sector total from the OECD STAN database. The average annual growth rate in labour productivity over the period 2001 -09 for each grouping of firms is shown in parentheses.