China's import and export markets both shrunk unexpectedly in October. It's the first drop since the early days of the Covid pandemic. China has maintained a strict 'zero Covid' policy since then - with lockdowns bringing factory production in cities to a virtual standstill. So how much is that policy to blame for the slowdown? World leaders and delegates are gathering in the Egyptian city of Sharm-el-Sheikh for the COP27 climate change summit. We hear how the emphasis is being put on responsible business. Also on World Business Report, we hear how Sri Lanka is banking on a tourist revival to aid its economic recovery.