If you account for depreciation, public investment in western infrastructure is negative, notes Klaus-Heiner R? hl of the Cologne Institute for Economic Research.

来经济研究所Klaus-Heiner R? hl，若考虑上折旧，那么西部 建就是负数了。

The wasteful “watering-can” approach that sprinkles whole states with cash ought to be ditched along with the compass- point principle, says Mr R? hl.

经济研究所Klaus-Heiner R? hl，不但不能用效率不高‘洒水器’ 法去雨泽各州，也不能遵循罗盘定位原则。