000
00236nam a2200085Ia 4500
001
MPKV111790
008
120911s9999 xx 000 0 und d
245
_a
Econometrica Vol.57 part No.4-6
_c
;
260
_a
Chicago
_b
University of Chicago
_c
1989
999
_c
75087
_d
75087