opportunitycost相关论文
Explaining virtual water trade:A spatial-temporal analysis of the comparative advantage of land,labo
The well-known “virtual water hypothesis” states that water-deficient regions/countries could alleviate water stress t......
Reducing emissions due to deforestation is considered a low-cost option for mitigating climate change.However,the recent......
基于美国经济分析局(BEA)公布的数据,分别估算出1999年后美国投资者持有海外资产、美国国外投资者和中国投资者持有美国资产的资产所......
由于制度需求主体多重性、制度收益的不确定性程度差异及制度变迁的机会成本不同,因而导致国企改革制度需求的程度不同.总体上说,......