Towards a More Productive and United Canada: The Case for Liberalizing Interprovincial Trade by Trevor Tombe, associate professor of economics at the University of Calgary, argues that if governments in Canada want to help increase economic productivity growth (and the possibility of a four-day work week), they should remove trade barriers between people and businesses in different provinces.

A separate essay—Barriers to Entry and Productivity Growth by Vincent Geloso, assistant professor of economics at King's University College—examines other barriers meant to protect existing companies and firms from both domestic and foreign competition. Because these barriers limit competition, protected firms become less dynamic, which slows productivity growth, limits opportunities for workers and the possibility of a four-day work week.