共 17 条
[1]
BLANK RM, 1989, AM ECON REV, V79, P295
[3]
Gujarati D. N., 1988, BASIC ECONOMETRICS
[4]
Horowitz A, 1985, Annu Rev Gerontol Geriatr, V5, P194
[6]
Liu K, 1985, Health Care Financ Rev, V7, P51
[7]
Macken C L, 1986, Health Care Financ Rev, V7, P33
[8]
Maddala GS., 1983, LTD DEPENDENT QUALIT, DOI [10.1017/CBO9780511810176, DOI 10.1017/CBO9780511810176]
[9]
McFadden Daniel, 1981, STRUCTURAL ANAL DISC, P198