共 27 条
[4]
BUNCH KL, 1984, NAT FOOD REV, V25, P14
[5]
CHOW G, 1960, DEMAND DURABLE GOODS
[6]
COELEN C, 1979, DAY CARE CTR US NATI
[7]
Galbraith John K., 1973, EC PUBLIC PURPOSE
[9]
Henderson J. M., 1971, MICROECONOMIC THEORY, V2nd ed.
[10]
Johnston J., 1972, ECONOMETRIC METHODS, V2nd edn