Yesterday about 25 senior pensions and asset management people put their names to a petition, sent to UK ministers Iain Duncan Smith and Steve Webb, asking them to rethink a proposed rule-change that could transform their industry. Who are the "Mallowstreet 25" and what are they so worried about?

This all goes back to the government's sudden announcement, at the start of July, that it would link defined-benefit pensions to Consumer Price Inflation instead of Retail Price Inflation.