The productivity effects of the liberalization of Japanese telecommunication policy
The productivity effects of the liberalization of Japanese telecommunication policy
复制标题
日本电信政策自由化对生产率的影响
DOI：
10.1007/bf01073598
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Yiming Zhang
中科院分区：
文献类型：
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作者：
H. Oniki;T. Oum;R. Stevenson;Yiming Zhang
1980年代初，日本政府决定推行开放日本电信市场的自由化政策，并将占主导地位的国内电信服务提供商日本电报电话公司（NTT）私有化。本文的目的是评估自由化对NTT生产绩效的影响。为了评估自由化的生产性后果，我们首先提供NTT的基本生产率指标。然后对全要素生产率（TFP）进行分解，将自由化的影响与规模、技术和产能利用率等其他因素分开。TFP分解是根据动态成本模型的参数估计进行的。在1958-87年期间，NTT的TFP水平以平均每年3.4%的速度增长。然而，在决定采取自由化政策之后，全要素生产率的改善速度大大加快。1982- 1987年期间，NTT的平均年TFP增长率为5.12%，而前五年（1977- 1982年）的年增长率为0.26%。TFP增长的分解似乎表明，自由化是NTT生产率提高的主要来源。
In the early 1980s, the Japanese government decided to pursue policies of liberalization that opened Japan's telecommunication market to competition and moved toward the privatization of Nippon Telegraph and Telephone (NTT), the dominant domestic telecommunication service provider. The purpose of this paper is to assess the effects of liberalization on the productive performance of NTT. To assess the productive consequences of liberalization, we first provide basic productivity measures for NTT. The Total Factor Productivity (TFP) measures are then decomposed to separate out the effects of liberalization from other factors such as scale, technology, and capacity utilization. The TFP decomposition is based on the parameter estimates of a dynamic cost model.During the 1958–87 period, NTT's TFP level increased at an average annual rate of 3.4%. However, TFP improved at a significantly faster rate following the decision to adopt policies of liberalization. The NTT's average annual TFP growth rate was 5.12% for the 1982–87 period as compared to a 0.26% per year growth rate for the previous five year (1977–82) period. The decomposition of TFP growth appears to indicate that liberalization was a major source of productivity improvement for NTT.