TY  - JOUR
A1  - Cai, Yuezhou
TI  - Factors Affecting the Efficiency of the BRICSs' National Innovation Systems: A Comparative Study based on DEA and Panel Data Analysis
PY  - 2011/12/06
JA  - Economics: The Open-Access, Open Assessment E-Journal
VL  - 5
IS  - 2011-52
UR  - http://www.economics-ejournal.org/economics/discussionpapers/2011-52
ER  -