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Supply-side thinking now dominates European economic policy. Most governments, and the European Commission, argue that attempts to boost demand would be counterproductive, achieving little but a delay to the necessary consolidation of public finances. With close to unanimity, they believe that structural reforms offer the only hope for depressed European economies: these reforms will improve competitiveness and confidence, leading to stronger growth, a rebalancing of trade between European countries and sustainable public finances. But are policy-makers and the Commission putting excessive faith in the power of structural reforms? Is there a risk that a strategy weighted so heavily towards supply-side measures could actually end up further eroding Europe's growth potential?...