Concentration degree and Herfindahl Index can be mutually complementary and verified in measuring market concentration degree of expressway industry.
并分析绝对集中度和赫佛因德指数在测算该产业的市场集中度时能够相互补充和验证。
The agglomeration level of some China "s manufacturing industry was measured by the concentration index of industrial space and CR_n index in 1994-2003."
本文利用产业空间集聚指数和行业集中度CR。指标对中国部分制造产业1994 - 2003年集聚水平进行了测度。
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