Over the past several years, measures of economic productivity have seen Canada tumbling. First slowly, then rapidly. Once nearly at par with the United States, we've fallen far behind them—and by some measures we're one of the developed world's least productive countries right now. How did this happen? Which industries are lagging behind and dragging us down? How much of this fall was within Canada's control, and how much was due to external factors? And when we speak of a country's or a province's "productivity", what exactly are we measuring, and how? GUEST: Trevor Tombe, Professor at the University of Calgary’s Department of Economics; Director of Fiscal and Economic Policy at The School of Public Policy; Contributor at thehub.ca