发展中国家取得政治独立后,大多数国家由于历史遗留下来的原因,单一经济结构没有改变,仍然是初级产品(又称原料,包括燃料、粮食、经济作物和金属矿砂)供应国。据国际货币基金统计,80年代中期,发展中国家每年出口初级产品3000多亿美元,约占整个发展中国家出口的4/5。从发展中国家出口构成来说,仍然有73个国家出口半 After the developing countries gained their political independence, most of the countries remained the suppliers of primary products (aka raw materials, including fuel, foodstuffs, cash crops and metal ores) because of the unilateral economic structure they have inherited from history. According to the International Monetary Fund, in the mid-1980s, developing countries exported more than 300 billion U.S. dollars of primary products every year, accounting for about 4/5 of the total exports of developing countries. In terms of the composition of the exports of developing countries, 73 countries still export half