Regulators and policy makers should boost competition among mobile telephone operators to cut the high prices being charged for international data roaming. Analysis of pricing plans at 68 operators in the 34 OECD countries points to a strong case for new consumer protection and empowerment measures.

The international community is negotiating a new global climate agreement to be applicable from 2020 onwards. Parties aim at signing the agreement in December 2015, at the Conference of Parties (COP) in Paris. Until then, countries are already preparing proposals for their individual...