<p>When the Iran war broke out, we were warned of an oil shock not seen since the 1970s when fuel was rationed. </p><p>We were told the price of oil could reach $200 a barrel and airlines might ground planes. </p><p>But that hasn’t happened and now petrol prices are back down to where they were before the war. </p><p>Today the ABC’s Laura Tingle on how China is cushioning the world economy. </p><p>Featured: </p><p>Laura Tingle, ABC Global Affairs Editor </p>