Anthony D. Pellegrini is Professor of Educational Psychology at the University of Minnesota and author of The Role of Recess in Children's Development and Education.
With interest rates at record lows and global growth set to continue decelerating, there has rarely been a better time for governments to invest in infrastructure and other sources of long-term productivity growth. The only question is whether policymakers in Germany and elsewhere will seize the opportunity now staring them in the face.
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