So far, supportive policies such as loan guarantees and moratoria, together with capital relief provided by supervisory authorities, have also been effective in averting a liquidity crisis, as indicated by the sharp improvement in the quick ratio – a measure of a firm’s ability to meet its short-term obligations with its most liquid assets (Chart 13).
15  As a rough guide, the construction of an iron ore or coal mine typically requires around two to three times as many workers as are ultimately required to operate the mine.