U.S. Secretary for Agriculture Tom Vilsack and EU Agriculture Commissioner Janusz Wojciechowski will be on the stage together next week at the Forum for the Future of Agriculture & Farm Europe. Mr. Vilsack has taken the position that increasing productivity is the pathway to sustainability whereas Europe is focused on mandatory reductions in certain inputs. USDA’s Economic Research Service has just issued its latest calculations of total factor productivity (TFP) for different countries. The agency’s TFP index is the ratio between inputs and outputs. If outputs grow faster than inputs, it results in a positive number relative to the 2015 baseline used in this exercise. The ratio can change year to year but for the most rece...