7Finkelstein,A.,S. Taubman,B. Wright,M. Bernstein,J. Gruber,J. P. Newhouse,H. Allen,K. Baickerand theOregon Health Study Group. The Oregon health insurance experiment : Evidence from the first year [ J ]. TheQuarterly Journal of Economics,2012,127(3 ) :1057 - 1106.
8Gerdtham U. G. The impact of ageing on health care expenditure in Sweden [ J]. Health Policy, 1993,24: 1 -8.
9Hoffman,C. ,J. Paradise. Health insurance and access to health care in the United States[ J]. Annals of theNew York Academy of Sciences,2008 ,1136( 1 ) ; 149 - 160.
10Jowett,M.,P. Contoyannis and N. D. Vinh. The impact of public voluntary health insurance on private healthexpenditures in Vietnam[ J]. Social Science and Medicine,2003 ,56(2) :333 -342.
