共 32 条
[2]
ABDELRAHMAN HM, 1987, PRODUCT VARIETY MARS
[4]
[Anonymous], 1972, STUDIES STRUCTURE UR
[5]
Beckmann Martin J., 1976, MATH LAND USE THEORY
[6]
Cesari L., 1983, OPTIMIZATION THEORY
[7]
Chamberlin E.H., 1933, THEORY MONOPOLISTIC
[9]
DIXIT AK, 1977, AM ECON REV, V67, P297