On Rao score and PearsonX 2 statistics in generalized linear models

The identity of the Rao score and PearsonX ² statistics is well known in the areas where the latter was first introduced: goodness-of-fit in contingency tables and binary responses. We show in this paper that the same identity holds when the two statistics are used for testing goodness-of-fit of Generalized Linear Models. We also highlight the connections that exist between the two statistics when they are used for the comparison of nested models. Finally, we discuss some merits of these unifying results. Work financially supported by cofin. MIUR grants 2000 and 2002.     

治理通货膨胀的宏观调控手段

本文试图在分析我国通货膨胀成因的基础上，进一步分析各项与此有关的宏观调控手段，建立反映通货膨胀与这些调控手段之间关系的计量经济模型，并利用该模型分析各项调控手段的变化及对通货膨胀的定量作用．     

In Memoriam: Emeritus Professor Henry Oliver Lancaster, AO FAA 1 February 1913 – 2 December 2001

The death, in Sydney, of Oliver Lancaster marks the end of an era in the histories of the Statistical Society of Australia, which (in its previous existence as the Statistical Society of New South Wales) he helped found in 1947, and of the Australian Journal of Statistics of which he was founding editor (1959–1971). Oliver Lancaster was Foundation Professor of Mathematical Statistics at the University of Sydney (1959–1978), where he spent his life as student and academic. During his academic career, he achieved scholarly distinction in at least four fields: mathematical statistics, medical and public health statistics, the history of medicine and of statistics, and statistical bibliography. With E.J.G. Pitman (1897–1993), M.H. Belz (1897–1975), E.A. Cornish (1909–1973) and P.A.P. Moran (1917–1988) he was part of a cohort of renowned Australian mathematical statisticians who laid the foundation of the glory days of Australian mathematical statistics. This obituary and tribute focuses on some of these aspects, within a broader historical picture.     

治理通货膨胀的宏观调控分析模型

本文以我国通货膨胀的形成机制为依据,分析通货膨胀与宏观调控手段之间的关系,用此关系建成计量经济模型和辨识出模型的参数,并做了解释和检验.     

西南联大时期的许宝騄与戴世光

许宝騄、戴世光是我国近现代数理统计和社会经济统计领域的两面旗帜。他们二位在上世纪30年代分别留学英国和美国，获得统计学博士和硕士学位。抗日战争爆发后，分别在1940年、1938年回到昆明，任教西南联大。在极其困难的条件下，他们不仅在算学系、经济学系系统讲授数理统计和社会经济统计等课程，而且作出了有重大国际影响的研究成果。艰苦而乐观的生活趣事既反映了当时特殊的时代背景，更彰显出他们高尚的人格品德。     

Distinguishing Features of Just-in-Time Systems in the Make-to-Order/Assemble-to-Order Environment*

Few studies of just-in-time (JIT) implementation examine their significance in make-to-order manufacturing environments. This study examines the relative importance of several operating variables that are characteristic features of JIT systems within such environments in North America. The results suggest that the most salient features of JIT for make-to-order and assemble-to-order firms are the elimination of waste (in the form of time and defects), reduced setup time, reduced lotsize, and a smaller pool of suppliers. In addition, the results suggest that the use of non-domestic suppliers can possibly hinder efforts at JIT implementation of materials procurement.     

国际官方统计的新发展

联合国统计委员会会议是国际统计界的盛会,集中反映全球官方统计的最新成果和进展。本文对联合国统计委员会第50届会议最主要的若干问题,包括《2030年可持续发展议程》的数据和指标、官方统计基本原则、国家质量保证框架、官方统计使用大数据、国民账户体系、统计用途商业登记册、价格统计、住户调查、国际比较方案等领域的新发展进行了概述,从4个方面提出了国际官方统计的新发展对中国政府统计工作的启示。     

国家创新体系视角下的国家创新能力测度述评——理论方法、数据基础及中国实践

文章从国家创新体系角度,对创新能力测度相关的理论基础、方法工具、科技统计调查及中国的研究与实践进行全面梳理和分析。国家创新能力测度的发展与实践表明:国家创新体系理论(NIS理论)以系统论为指导全面考察创新活动的发生机制,为准确测度国家创新能力提供了有力支撑;不同时期形成的创新能力测度方法与当时占主流地位的创新理论密切相关;当前占主导地位的测度方法可分为建模计量法、综合指标法和DEA效率评价法三类,都是以NIS理论为支撑的;规范的科技统计调查是准确测度创新能力的前提,OECD是这方面的典范,其经验为发展中国家提供了参考依据;中国学者在测度方法的探索上有诸多独到之处,但国内科技统计调查工作仍有待进一步规范。     

Impact of support networks for breastfeeding: A multicentre study

Background

The rates of breastfeeding worldwide are slowly improving since 1996. Europe is still trailing behind the global breastfeeding incidence and prevalence rates. Thus, breastfeeding promotion, protection, prolongation and support have become an important challenge as breastfeeding sharply decreases in the first six months of life.

Stale economic news,media and the stock market

I employ a classification of headlines from newspapers and wire services to examine whether stale macroeconomic news affects stock prices. Unlike with individual stocks, the cost of obtaining information about major economic releases is relatively low. Thus, stock prices should adjust to economic news announcements prior to their coverage in newspapers. I find statistically and economically significant relationship between stale news stories on unemployment and next week’s S&P 500 returns. This effect is then completely reversed during the following week. These findings show that investors are affected by salient information and support the hypothesis that investors overreact to stale macroeconomic news reported in newspapers.