共 19 条
[3]
BLAIR J, 1955, BUSINESS CONCENTRATI, P57
[4]
THE RELATION BETWEEN SIZE AND EFFICIENCY OF BUSINESS
[J].
REVIEW OF ECONOMIC STATISTICS,
1942, 24 (03)
:125-135
[5]
CRUM WL, 1934, EFFECT SIZE CORPORAT
[6]
DAVIS HS, 1954, REV EC STATISTICS, V38, P286
[7]
DEMING WE, 1950, SOME THEORY SAMPLING, P9