A robust procedure for testing an assumed value of the population correlation coefficient

For testing that the population correlations coefficientp Q, Tiku and Balakrishnan1986) developed a robust test. This test is extended here to situcitions where one wants to test that p p , p being a specified non-zero value of p. o o     

Till Death Do Us Part: Marital Status and U.S. Mortality Trends, 1986 – 2000

Although the association of being married and a lower mortality rate has been well established, most previous research on marital status and mortality did not consider potential change in this relationship over time. In this study, I adopted a survey cohort perspective to examine both overall and cause‐specific mortality trends by marital status from 1986 to 2000 in the United States. On the basis of data from the National Health Interview Survey‐Longitudinal Mortality Follow‐up (N = 517,314), I found that mortality generally decreased or remained stable for the married from the 1986 to 2000 NHIS cohort, except for diabetes deaths. There is evidence showing divergent mortality trends between the married and unmarried, especially the widowed. Race and gender variations are examined.     

Leadership to Overcome Resistance to Change

Abstract

The thoughtful behavior analysis of organizational leadership and resistance to change by Goltz and Hietapelto (2002) inspired this follow-up article. Goltz and Hietapelto propose that organizational power is determined by the magnitude, frequency, and quantity of consequences under a person's control, and that people resist change when their consequence control is threatened. This presentation extends the Goltz and Hietapelto article by describing 14 distinctions between management and leadership, and offering 16 guidelines for effective leadership that involve more than consequence control. Thus, while managers obtain their influence by controlling other peoples' consequences, leaders go beyond consequence control to benefit the behaviors and attitudes of their colleagues and coworkers. The leadership guidelines are founded on behavioral research and are relevant and practical for any organizational employee, even those who have only minimal influence on the meaningful consequences of their own and others' work life.     

《长恨歌》主题辨析

《长恨歌》主题历来颇多争议，在教学过程中亦常有“主题之辩”等疑窦。不管是暴露说、讽喻规正说还是爱情说，总觉得有失偏颇；双重或多重主题，尽管中庸，但又太过笼统。不妨在双重或多重主题的前提下，偏重情爱，偏重伤感，采用“讽婉”或“讽劝”等概念，就可较为准确地揭示《长恨歌》动之以情、婉转以劝并以帝王切身之痛而达到的基本价值取向，这将会更加切合诗的原意，而且还可以弥补或者中和学术界在定性李隆基和杨玉环关系方面存在的分歧进而达成共识。     

Some implementation experiences with just-in-time manufacturing

A case study on the implementation of a just-in-time (JIT) production system by a Canadian manufacturer in the heavy machinery industry is presented. Many hurdles and difficulties were encountered during implementation and the way in which these problems were resolved is reported. While the successful implementation of a JIT system depends on a host of technical and human factors, this study suggests that the people involvement factor is the most crucial. It is seen that the key elements to securing people involvement are institution leadership, company-wide education and training and mutual understanding, trust and respect among employees. The moral of this study is that without employee involvement nothing will happen and no result will be achieved.     

Estimation of firm-specific technological bias,technical change and total factor productivity growth: a dual approach

This paper deals with modeling firm-specific technical change (TC), and technological biases (inputs and scale) in estimating total factor productivity (TFP) growth. Several dual parametric econometric models are used for this purpose. We examine robustness of TFP growth and TC among competing models. These models include the traditional time trend (TT) model and the general index (GI) model. The TT and the GI models are generalized to accommodate firm-specific TC and technological bias (in inputs and output). Both nested and non-nested tests are used to select the appropriate models. Firm-level panel data from the Japanese chemical industry during 1968- 1987 is used as an application.     

Use of several auxiliary variables in estimating the population mean in a two-occasion rotation pattern

ABSTRACT

This paper addresses the problem of estimation of the population mean on the current (second) occasion in two-occasion successive sampling. Utilizing the readily available information on several auxiliary variables on both occasions and the information on the study variable from the previous occasion, an estimation procedure of the population mean on the current occasion has been proposed. Theoretical properties of the proposed estimator have been investigated. Optimum replacement policy to the proposed estimator has been discussed. The proposed estimator has been compared empirically with the sample mean estimator, when there is no matching and the optimum estimator which is a linear combination of the means of the matched and unmatched portions of the sample at the current occasion. Appropriate recommendations have been made for practical applications.     

The debt trap: A two-compartment train wreck… and how to avoid it

We explore sustainable paths out of a debt trap with a highly stylized two-sector differential equations model for the stocks of money in Government and Society. The model fits the data for the U.S. between 1981 and 2012 with a coefficient of correlation of 0.996. The solutions provide detailed “escape conditions” from the debt trap. A primary surplus is required. Then a government can escape its debt trap either through sustained annual monetary outflows from society to the government (taxation) but with a low initial growth rate, or through annual monetary inflows into both sectors (stimulus) with higher initial growth rate. We illustrate the use of our model with simulations which show how five indebted countries can escape their debt trap in 30 (or 70) years.     

试析高校党建进学生公寓的目标定位与工作理念

高校党建工作进学生公寓工作的着力点，首先应放在推动建设优良学风，促进大学生成才；其次是放在培育和发展学生的自我管理能力上；第三是放在大学生人生观、价值观的培养上。应围绕这三个着力点，开阔工作思路。拓展工作内容，创新工作方法，坚持以人为本，不断提高党建工作进学生公寓的实效性。