One of the thinktanks closest to the Labour government is urging ministers to introduce private sector rent controls in England , as the chancellor weighs up how to ease a surge in living costs caused by the Iran war. The Institute for Public Policy Research (IPPR) has published a paper calling for a rent “double lock”, which would link rent increases to either wages or inflation, depending on which was lower. While others on the left have previously called for rent controls, the IPPR’s extensive links inside government will increase pressure on ministers to include the idea in a cost of living package to be announced by Rachel Reeves later in May. The Guardian revealed last month that Reeves had been considering a one-year rent freeze to deal with a rise in inflation which economists say is now inevitable, but the idea was quickly dismissed by Downing Street.…