ZIMBABWE is working on new measures to stabilise its local currency including linking the exchange rate to hard assets such as gold and creating a currency board, Finance Minister Mthuli Ncube said. The Zimbabwean dollar has fallen about 40% since the start of the year, hurt by increased foreign-currency demand from civil servants being paid December bonuses and weaker commodity prices denting inflows. Last week President Emmerson Mnangagwa said authorities were looking to introduce a "structured currency", without explaining how that would work, and the central bank governor said that work was ongoing. "The idea going forward is to make sure that…