努力建设统一的大市———访经济学家林毅夫教授文／本刊记者李小林为什么美国作为世界头号经济强国只卖小麦，不卖小麦深加工制品？●为什么澳大利亚只卖羊毛，不卖羊毛制品，而它仍然能成为经济发达的国家？●中西部的一些地区是否该重新考虑“无工不富”的战略？云南的... Efforts to build a unified market --- Interview with economist Professor Lin Yifu Text / correspondent Li Xiaolin Why the United States as the world’s number one economic powerhouses only sell wheat, do not sell wheat deep-processed products? ● Why does Australia sell only wool, not wool, and can it still be a developed economy? ● Should some regions in central and western China reconsider the strategy of “no work or not?” Yunnan ...