By Maimunah Mohd Sharif Housing policy has failed on a global scale, it’s time to address the core of the issue, writes Maimunah Mohd Sharif As renters and homeowners in London and many parts of England know all too well, the scarce supply of properties has pushed prices up and up over the past few decades. More than 11m people in the UK spend more than 40 per cent of their income on housing, the highest proportion in Europe. But the crisis is far from just a UK issue, with housing policy globally having been a collective failure over the past decades. In 1948, the Universal Declaration of Hum…