著者

谷口 和矢 松本 章邦 縄田 和満

出版者

一般社団法人 資源・素材学会

雑誌

Journal of MMIJ (ISSN:18816118)

巻号頁・発行日

vol.129, no.10_11, pp.642-649, 2013-10-01 (Released:2014-11-01)

参考文献数

27

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On Feburuary 22, 2012, the WTO case of China's export restrictions on raw materials was settled as the Appellate Body report was adopted. The report decided that China's export restraints were inconsistent with its commitments under several agreements.This was the first case that the Appellate Body made a judgement on a case dealing with export restrictions. This paper examines effects of the WTO dispute settlement process for this case using the metal price data. We first review the WTO dispute settlement process and a brief history of the China's export restrictions case. This WTO case is important by two reasons. First, the WTO had been mainly dealing with import restrictions that might prevent smooth trade between nations. Secondly, the targeted commodities were mineral resources neccessary for the wide range of manufactural products. Hence the judgement would probably give a significant impact on many industries. Then, we evaluate the effects of the WTO dispute settlement process by event studies of alminium and zinc prices. We find that the alminium price is not affected, however, the zinc price fell down when the Appellate Body report was adopted. The results of alminium and zinc suggest that the effect of the WTO dispute settlement process might depend on the difference of the production shares of China.

著者

縄田 和満

出版者

一般社団法人 日本統計学会

雑誌

日本統計学会誌 (ISSN:03895602)

巻号頁・発行日

vol.22, no.1, pp.73-94, 1992 (Released:2009-01-22)

参考文献数

25

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In recent economic studies, Tobit models (censored regression models) in which the dependent variables cannot be negative are widely used. Although the Tobit models are usually estimated by the maximum likelihood method, the estimator is inconsistent under heteroscedasticity and nonnormality of the error terms.Powell [1984] proposed a modified least absolute deviations estimator which is strongly consistent under heteroscedasticity and nonnormality. One of the major problems of Powell's estimator is its computational difficulty. Since the minimand is the complicated form, we cannot use standard methods to caluculate Powell's estimator.In this paper, I consider a new algorithm and evaluate Powell's estimator by the Monte Carlo experiments.

著者

縄田和満

出版者

多賀出版

雑誌

応用計量経済学

巻号頁・発行日

1997

被引用文献数

2

著者

関沢 洋一 木村 もりよ 縄田 和満

出版者

医療経済学会 ; 1994-

雑誌

医療経済研究 = Japanese journal of health economics & policy : 医療経済学会雑誌医療経済研究機構機関紙 (ISSN:1340895X)

巻号頁・発行日

vol.32, no.1, pp.44-60, 2020

著者

縄田 和満 井伊 雅子

出版者

一般社団法人日本統計学会

雑誌

日本統計学会誌 (ISSN:03895602)

巻号頁・発行日

vol.32, no.3, pp.279-290, 2002-12

被引用文献数

1