Assuming that we think that there should be solar panels all over the place, that renewables are indeed to be deployed, then of course governments should have every tool at their disposal to incentivise it.

FORBES: Solar Energy Seems To Make Environmentalists Mad

Because Europe's governments have signed away national control of interest rates, fiscal policy is the only tool to hand if the single monetary policy leaves their economies growing more slowly than they might, or faster than they can sustain without pressure on wages and property prices.

ECONOMIST: Europe grows apart

Our textbooks have become a tool of international politics, a card sometimes played in the domestic politics of other countries, or for foreign governments to secure money from Japan.

CNN: 'Let's Stop Apologizing'