Slower core inflation has allowed the Reserve Bank of India to begin easing monetary policy, despite its objection to the fiscal stance.

FORBES: Is India Bearishness Overblown?

The main objection to the EU's policy is that it applies to air-miles clocked up outside European airspace.

ECONOMIST: Planes and pollution

But probably a better objection to this policy is that it leaves the poorest households very exposed to inflationary shocks.

BBC: Fairness and the welfare bill