世界经济的晴雨表（矿井中的金丝雀）－韩国出口
Why Korean exports matter Economists look to Korean exports as they are the world’s imports. Major traded goods range from automobiles and petrochemicals to electronics such as PCs and mobile devices. Because this report is the first monthly set of hard economic numbers — as opposed to soft sentiment based reports like purchasing managers surveys — from a major economy, economists across Wall Street dub South Korean exports as the global economic “canary in the coal mine.”
来源：http://www.businessinsider.sg/south-korean-exports-october-2015-2015-11