Theoretical and Empirical Research for Organizing the System of Economic Statistics in Japan

（1）经济统计研究会议由2004年5月至2006年1月，我们共举行了15次定期经济统计研究会议，其中3次是在2004年5月至9月期间举行，当时尚未获得拨款。这些专题包括：日本官方统计首次由私人调查公司进行调查;每月劳动统计考虑到其时间序列结构的新估计方法;日本中小型企业的新调查;全国物价调查中使用的再调查方法和密度估计;日本的经济普查;以及美国和英国的商业登记。特别是，我们在2005年日本联合统计会议上组织了一次题为“改革日本官方统计制度”的登记会议。两位主要发言人（Tatsuo Inoue先生和Yoshiro Matsuda教授）和两位讨论人（Hideo福井教授和Kei Takeuchi教授）应邀出席了会议，许多研究人员和官方统计人员参加了讨论。（2）OutputSaigo和Sitter（2005）提出了一种带重插补的残差重标度折刀方差估计。Yoshizoe（2005）从历史的角度讨论了日本的经济统计。Hiromatsu等（2004）、Katsuura（2005）对实证分析中的多重统计的组合进行了研究，除了发表在期刊和书籍上的论文外，还在2005年和2006年的统计会议上进行了多次演讲。其中包括：利用日本家庭调查进行统计匹配的研究（吉藏）、两阶段抽样的Bootstrap方法（西乡）、东京地价插值的克里金法（西乡、益成）、问卷变更对调查结果的影响--关于时间利用和休闲活动调查的实证研究（胜浦）。其中一些已提交研究期刊发表。

(1)Research Meeting on Economic StatisticsFrom May 2004 to January 2006, we have held 15 regular Research Meetings on Economic Statistics, including three conducted during May 2004 to September 2004, when they were not funded yet. Among the topics were : the first occasion of survey practice by a private survey company in Japan's official statistics ; a new estimation method for the monthly Labour Statistics taking its time series structure into account ; the new survey on small- and medium sized firms in Japan ; use of resampling methods and density estimation in the National Survey of Prices ; Economic Census in Japan ; and Business Register in US and UK. Particularly, we organized a registered session entitled "Reforming the Official Statistics System in Japan" at the Joint Statistical Meeting 2005 in Japan. Two key note speakers (Mr. Tatsuo Inoue and Professor Yoshiro Matsuda) and two discussants (Professor Hideo Fukui and Professor Kei Takeuchi) were invited to the session and many researchers and official statisticians participated to discuss.(2)OutputSaigo and Sitter (2005) proposed a residual-rescaling jackknife variance estimator with re-imputation for randomly imputed survey data. Yoshizoe (2005) discussed economic statistics in Japan in a historical perspective. Hiromatsu, et al. (2004) and Katsuura (2005) studied combination of multiple statistics for empirical analyses.In addition to articles appearing journals and books, we made several presentations at the Joint Statistical Meetings 2005 and 2006. Among them were : Research on Statistical Matching using Japan's Household Survey (by Yoshizoe) ; A Bootstrap Method for Two-Phase Sampling (by Saigo) ; Use of kriging for interpolating Tokyo's land prices (by Saigo and Masunari) ; and Effects of changes in questionnaire on survey outcome-An empirical study on Survey on Time Use and Leisure Activities (by Katsuura). Some of them are submitted for publication in research journals.