Economies of scale in telecommunications: a further reply
Economies of scale in telecommunications: a further reply
复制标题
电信规模经济：进一步答复
DOI：
10.1080/00036848100000030
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发表时间：
1981
影响因子：
2.2
通讯作者：
H. Vinod
中科院分区：
文献类型：
--
作者：
D. Eldor;E. Sudit;H. Vinod
我们很高兴地注意到Fishelson（1979）的结果与我们在Eldor等人中的结果一致。（1979 a）和其他地方关于贝尔系统规模经济的统计意义。关于规模效应的大小，我们想提醒读者注意最近的研究结果与Fishelson的相反。表1总结了使用生产成本模型的五项研究的规模弹性结果。所有这些都比Fishelson模型的限制性更小，因为它们不假设先验的规模回报率恒定。大多数研究发现，规模经济在统计上具有显著意义。特别值得注意的是，Fuss和Waverman在Denny et al.（1979 a）和（1979 b）Fishelson（1979）引用的他们早期的发现。
We are pleased to note that Fishelson's (1979) results agree with ours in Eldor et al.(1979a) and elsewhere as to the statistical significance of Bell System's scale economies. With regard to the magnitude of the scale effects, we would like to alert readers to findings of recent studies that run contrary to Fishelson's. Scale elasticities findings of five studies using production-cost models are summarized in Table 1. All of them are less restrictive than Fishelson's model in the sense that they do not assume a priori constant returns to scale. Most studies find statistically significant economies of scale of substantial magnitude. It is noteworthy in particular, that Fuss and Waverman reversed in Denny et al.(1979a) and (1979b) their earlier findings quoted by Fishelson (1979).