Advancing formative measurement models

Formative measurement models were first introduced in the literature more than forty years ago and the discussion about their methodological contribution has been increasing since the 1990s. However, the use of formative indicators for construct measurement in empirical studies is still scarce. This paper seeks to encourage the thoughtful application of formative models by (a) highlighting the potential consequences of measurement model misspecification, and (b) providing a state-of-the art review of key issues in the formative measurement literature. For the former purpose, this paper summarizes findings of empirical studies investigating the effects of measurement misspecification. For the latter purpose, the article merges contributions in the psychology, management, and marketing literatures to examine a variety of issues concerning the conceptualization, estimation, and validation of formative measurement models. Finally, the article offers some suggestions for future research on formative measurement.     

Confirmatory tetrad analysis in PLS path modeling

The authors propose a CTA-PLS assessment routine for measurement models. This routine applies confirmatory tetrad analysis (CTA) in a manner which is consistent with partial least squares (PLS) path modeling assumptions. The conceptualization employs a bootstrapping procedure to accomplish an appropriate statistical test examining vanishing tetrads in CTA-PLS. The approach allows distinguishing a formative indicator specification from a reflective indicator specification. Applications using experimental and empirical data demonstrate the usefulness and effectiveness of CTA-PLS. As a means of evaluating PLS path modeling results, the routine assists researchers in avoiding potentially unrepresentative consequences of measurement model misspecification.     

Equilibria in infinite dimensional commodity spaces revisited

Summary. The aim of the paper is to provide a new proof of the Mas-Colell–Richard existence of equilibrium result when preferences are non-transitive and incomplete. Our proof generalizes the main ideas of the Negishi approach to the case of unordered preferences. Received: January 10, 1996; revised version: November 23, 1999     

旋进旋涡流量计在埕岛油田的应用

介绍了坦岛油田伴生气体计量现状、旋进旋涡流量计的结构特点及工作原理,对旋进旋涡流量计两种压力损失的计算方法进行了对比,找出了适合于埕岛油田的计算公式。针对使用过程中存在的问题,以及几年来为提高计量精度所做的工作,提出了工作措施和建议。认为,在新建或改造计量装置时,应做到完善计量工艺流程,合理选择流量测量点;改善分离器及洗涤器的分离效果;定期进行标定,确保正常运行。     

The relationship between developed equity markets and the Pacific Basin's emerging equity markets

Using a trivariate vector autoregression (VAR) model with a proper control for heteroscedasticity, this paper investigates the relationships between the two largest equity markets in the world—the U.S. and Japan—and the four Asian emerging equity markets: Hong Kong, Korea, Singapore, and Taiwan. Evidence indicates that the links between the developed markets and the Asian emerging markets (AEMs) began to increase after the stock market crash in October 1987, and have significantly intensified since the outbreak of the Asian financial crisis in July 1997.     

中国外贸进出口对税收的影响：理论与实证

对外贸易对中国的税收有怎样的影响?回答这一问题，对制定贸易政策有重要的现实意义。本文对1-2-3模型进行修正，将总产出区分为4种具有不同税收特征的产品，构建相应的税收模型，从理论上分析了对外贸易对税收有正面的影响。实际测算显示，一般贸易出口每增加1元人民币，会相应带动当年税收增加0．4～0．5元人民币。通过对季度数据的Granger因果检验和向量误差修正模型分析，本文发现出口增加对税收有持续的正面影响。     

HOW TO MEASURE THE ECONOMIC IMPACT OF VECTOR‐BORNE DISEASES AT COUNTRY LEVEL

Vector‐borne diseases (VBDs) are widespread in less developed countries and reemerging in developed ones. Available economic studies agree that VBDs have significant effects on countries' economic outcomes, and affirm that a systematic evaluation of such effects is crucial for the efficient allocation of resources to health‐related priorities. This paper provides a comparative assessment of available methodologies for measuring the economic impact of VBDs at national level. We review both macroeconometric and micro‐based approaches, and examine advantages and disadvantages of current methods. We conclude by suggesting possible areas for future research.     

浅谈测量员如何更好更快地提高业务水平

测量作为服务于国民经济建设的重要行业,随着传统测绘技术向数字化测绘技术转化,它表现出复杂性及多样性,当我们面对一项新的测量任务时,除了传统学习模式之外,我们该如何更好地提高自身地业务水平呢？本文结合作者工作经验论述了上述问题,为测量同行提供一些建议及指导。     

A Bayesian analysis of a variance decomposition for stock returns

We apply Bayesian methods to study a common vector autoregression (VAR)-based approach for decomposing the variance of excess stock returns into components reflecting news about future excess stock returns, future real interest rates, and future dividends. We develop a new prior elicitation strategy, which involves expressing beliefs about the components of the variance decomposition. Previous Bayesian work elicited priors from the difficult-to-interpret parameters of the VAR. With a commonly used data set, we find that the posterior standard deviations for the variance decomposition based on these previously used priors, including “non-informative” limiting cases, are much larger than classical standard errors based on asymptotic approximations. Therefore, the non-informative researcher remains relatively uninformed about the variance decomposition after observing the data. We show the large posterior standard deviations arise because the “non-informative” prior is implicitly very informative in a highly undesirable way. However, reasonably informative priors using our elicitation method allow for much more precise inference about components of the variance decomposition.     

The evolution of U.S. monetary policy: 2000–2007

A vector autoregression with time-varying parameters is used to characterize changes in Federal Reserve policy that occurred from 2000 through 2007 and describe how they affected the performance of the U.S. economy. Declining coefficients in the model׳s estimated policy rule point to a shift in the Fed׳s emphasis away from stabilizing inflation over this period. More importantly, however, the Fed held the federal funds rate persistently below the values prescribed by this rule. Under this more discretionary policy, inflation overshot its target and the funds rate followed a path reminiscent of the “stop-go” pattern that characterized Fed behavior prior to 1979.