Modeling knowledge sharing and team performance in technology industry: the main and moderating effects of happiness

Review of Managerial Science - This study complements previous literature by bridging activity theory and the broaden-and-build theory to examine how happiness (as an intrinsic driver) and...     

个体行为视角下社区信任对社区养老服务选择意愿的影响研究

文章基于经典态度—行为研究理论构建社区养老服务选择模型,以四川省成都市社区养老服务为例进行实证研究.实证数据结果显示,感知社区形象和感知社区服务质量积极影响公众对社区的信任感,并进一步正向影响公众对社区养老服务选择意愿.社区信任在感知社区形象与社区养老服务选择意愿之间具有部分中介作用,在感知社区服务质量与社区养老服务选择意愿之间具有完全中介作用.本研究结论能为认识社区信任在社区养老服务管理实践中的重要性提供理论指导.     

An R Package for Value at Risk and Expected Shortfall

Value at risk and expected shortfall are the two most popular measures of financial risk. But the available R packages for their computation are limited. Here, we introduce an R contributed package written by the authors. It computes the two measures for over 100 parametric distributions, including all commonly known distributions. We expect that the R package could be useful to researchers and to the financial community.     

Specification tests for time-varying parameter models with stochastic volatility

We propose an easy technique to test for time-variation in coefficients and volatilities. Specifically, by using a noncentered parameterization for state space models, we develop a method to directly calculate the relevant Bayes factor using the Savage–Dickey density ratio—thus avoiding the computation of the marginal likelihood altogether. The proposed methodology is illustrated via two empirical applications. In the first application, we test for time-variation in the volatility of inflation in the G7 countries. The second application investigates if there is substantial time-variation in the nonaccelerating inflation rate of unemployment (NAIRU) in the United States.     

Parent–Child Interactive Stress in Chinese Families with Children Who Have Attention-Deficit Hyperactivity Disorder

Child and Adolescent Social Work Journal - The situations of Chinese parents of children with attention deficit hyperactivity disorder (ADHD) and other related comorbidities are under-explored in...     

Community reintegration for people with psychiatric disabilities: challenging systemic barriers to service provision and public policy through participatory action research

People with psychiatric disabilities represent a growing group within the population of nursing home residents in the USA. Despite a preference for living in community‐based settings, the availability of supportive services for community living is hindered by barriers at both the service provision and public policy levels. Therefore, understanding and responding to the community living and participation needs of people with psychiatric disabilities is a highly relevant area for action research. This paper discusses a participatory action research endeavor carried out in collaboration with key personnel at Centers for Independent Living who work to provide community reintegration services for individuals with psychiatric disabilities. The events of this 15 month partnership are extensively described, analyzed and discussed. Findings reflect the critical need for communication, dialogue and action to support people with psychiatric disabilities in the community.     

A new EPQ model: integrating lower pricing,rework and reject situations

The economic production quantity (EPQ) is a well-known and commonly used inventory control technique. It has been used for well over 50 years to optimize lot sizes in transportation/production. The standard results are easy to apply but are based on a number of assumptions. A common assumption in the EPQ model is that all units produced are of perfect quality, this will underestimate the actual required quantity. Many researchers have studied the effects after relaxing this assumption on the EPQ model. The previous studies had considered that imperfect quality and defective items are either to be reworked instantaneously and kept in stock or rejected at a cost. The objective of this paper is to provide a framework to integrate lower pricing, rework and reject situations into a single EPQ model. A 100% inspection is performed in order to identify the amount of good quality items, imperfect quality items and defective items in each lot. This model assumes that items of imperfect quality, not necessarily defective, could be used in another production situation or sold to a particular purchaser at a lower price. The electronic and clothing industries give good examples for such situations. A mathematical model is developed and a numerical example is presented to illustrate the solution procedures. It is found that the time factor of when to sell the imperfect items is critical, as this decision will affect the inventory cost and the batch quantities.     

Facilitating achievement by social capital in Japan

Social capital, as a comprehensive concept, comprises structural components representing social networks and functional components, which register past and future help, reciprocity, and trust. One assumption is that these various components interact and reinforce one another to enhance an individual's expected achievement. To validate the conceptualization and examine the consequences of social capital, the present study analyzed a set of data collected from 201 residents based in Japan. The results demonstrated that conceptualization proves to be valid in view of its adequacy in internal consistency and stability in the confirmatory factor model. The structural equation modeling likewise revealed contributions of the social capital components both individually and interactively. Notably, the Japanese respondents expected greater achievement with higher levels of both structural social capital and anticipatory functional social capital, which consequently tapped expected help, trust, and reciprocity. Structural social capital appeared to be a basis for functional social capital.     

Doubly adaptive biased coin designs with delayed responses

In clinical studies, patients are usually accrued sequentially. Response‐adaptive designs are then useful tools for assigning treatments to incoming patients as a function of the treatment responses observed thus far. In this regard, doubly adaptive biased coin designs have advantageous properties under the assumption that their responses can be obtained immediately after testing. However, it is a common occurrence that responses are observed only after a certain period of time. The authors examine the effect of delayed responses on doubly adaptive biased coin designs and derive some of their asymptotic properties. It turns out that these designs are relatively insensitive to delayed responses under widely satisfied conditions. This is illustrated with a simulation study.