共 24 条
[3]
Burns AF., 1947, MEASURING BUSINESS C
[4]
Dana R. A., 1984, ANAL STRUCTURE ECONO
[5]
DAY RH, 1982, AM ECON REV, V72, P406
[7]
DAY RH, 1984, INTRINSIC BUSINESS F
[9]
Frisch R., 1933, EC ESSAYS HONOR GUST