Zhang, Hai-Ying; Ji, Qiang; Fan, Ying - In: Energy Economics 38 (2013) C, pp. 87-95
two-phase DEA-like model to evaluate oil import security. China is taken as an example to measure its oil import security … during 1993–2011 and to identify the main risk factors in different periods. Results indicate that China's oil import risks … environment, the risk factors affecting China's oil import security switched among different stages of the supply chain, showing a …
