The Productivity Decline: Demographics, Robots, or Globalization? Laura Alfaro, September 2017, Paper, "In the early 21st century, there was a noticeable trend of declining productivity growth. Despite the persistent decline in productivity growth, a consensus on its explanation had not been reached. Some of the debate focused on the technicalities of productivity measurement, and the structural shift involved with the increased usage and introduction of robots in place of workers, garnering the interest of academic economists, businesses and policymakers." Link