不确定性在团队授权与新产品开发业绩关系中的作用

一个最新的理论研究表明授权的作用取决于环境中不确定性的程度。在对212个新产品开发项目的定量研究中,发现了团队授权与创新速度之间显著性相关关系。对由技术新颖性和技术动态性这两个不同因素引起的技术不确定性作了区分。结果发现,团队授权和创新速度之间的关系被技术动态性所调节,而技术新颖性则不能。通过进一步的研究发现,在不确定性较低的情况下,无论来源于技术新颖性或技术动态性,团队授权和创新速度均呈U形函数关系。这说明在不确定性较低的情况下,要么完全授权,要么完全不授权或高层介入,都有利于提高创新速度。与之形成对应,在不确定性高的情况下,团队授权和创新速度之间的关系受技术新颖性和技术动态性的影响是不同的。当技术新颖性高时,团队授权和创新速度之间呈线性关系,而当技术动态性高时,二者呈反U形函数关系。对于后者,极高程度的团队授权并不加快创新速度。这些结果说明,应该根据研发项目的不确定性的不同来源与水平选择不同的团队授权策略。这些发现或许也表明,技术动态性比技术新颖性对不确定性有更重要的影响。     

Local union mergers: Frequency,forms, and national union policy

This paper presents the results of a survey on the characteristics of almost 1,900 union mergers. It was found that a large proportion of national unions had some local mergers, but a majority of cases occurred in a few very active unions. Most mergers were absorptions of smaller locals into larger ones. Formal requirements for local mergers, either through general policies or constitutional clauses, were infrequent, but national level governing bodies appear to have substantial control over the approval of mergers. Suggestions are made for the further study of local mergers in relation to bargaining structure, local autonomy, membership participation, and local effectiveness.     

The optimal treatment approach to needs assessment

This paper describes a needs assessment technique which has not been considered in previous discussions. Basically the Optimal Treatment approach to needs assessment consists of comparing the most desirable set of services for a client with the services actually recommended or received. Discrepancies due to unavailable resources are noted and aggregated across clients. Systematic shortcomings may be taken to represent service needs.The advantages and disadvantages of this and other procedures are considered, especially with respect to political factors and the utility of data for planning and decision making in the local agency context.     

Computer simulation of adult sentencing proposals

Several legislative proposals have been introduced in the State of Washington which would alter sentencing procedures for adults convicted of felonies. A major policy concern is the degree to which such new legislation would impact population levels in an already overcrowded prison system. The Sentencing Alternatives Impact Simulation Project developed a series of computer simulation programs to model the sentencing proposals. Results of the simulations were made available to the Legislature and to planners for Adult Corrections. This article describes the major model developed, the data required to run it, and the results obtained from it under a variety of hypothetical conditions. It includes a discussion of the level of utilization made of the results, and some comments on the requirements for maximizing utilization in future simulation projects.     

The effect of unions on labor markets and economic growth: An analysis of state data

Despite voluminous research on unions, there still is no consensus on how unions affect a state's economy. Using a panel of 48 U.S. states for the 1978–1994 period, we estimate a series of simultaneous equations to analyze how unions affect various economic barometers. This provides measures for the partial correlations between unions and performance. The model is then re-estimated using regional dummies to capture fixed effects and to highlight regional differences in the slope of the Phillips curve. We find that unions adversely affect unemployment rates and the growth rates of gross state product (GSP), productivity, and population, while increasing the rate of wage inflation. The impact on the employment growth rate is negative but not significant. A test for fixed effects reveals regional differences in GSP growth. Regional differences in popu-lation growth are not significant. Also, the slope of the Phillips curve is significantly dif-ferent across regions.     

Optimal sampling times in population pharmacokinetic studies

We propose a simulation-based approach to decision theoretic Bayesian optimal design. The underlying probability model is a population pharmacokinetic model which allows for correlated responses (drug concentrations) and patient-to-patient heterogeneity. We consider the problem of choosing sampling times for the anticancer agent paclitaxel, using criteria related to the total area under the curve, the time above a critical threshold and the sampling cost.     

Bundling and Scheduling Service Packages with Customer Behavior: Model and Heuristic

Past researchers have found evidence that customers consider the sequence of event utility when evaluating past and future service experiences. Specifically, the evidence confirms that the placement of a peak event, the utility of the last event, and the slope of event utility over time all affect customer behavior and perception. We formulate an optimization problem with a focus on optimizing schedule sequence characteristics in order to maximize customer experiences. We discuss possible contexts in which this type of scheduling might be considered and, as an example, present a particularly complex model of a world‐renowned performing arts venue. We solve the problem with a simulated annealing algorithm and further discuss the complexity and opportunities associated with this type of scheduling effort.     

Service(s) Marketing Research: Developments and Directions

This paper outlines the development of research in the domain of service(s) marketing from its birth as an area of academic study in the 1960s/1970s to the current time. It identifies four phases of development. Phases 1–3 relate to the period before 2004, which focuses on the development of service(s) marketing. In Phase 4, a greater focus on the concept of service (singular) – defined as the application of knowledge and skills – has resulted in developments and directions in service research that offer a different perspective through which to view more general marketing. This different perspective has explicit implications also for wider business and management research. The paper summarizes current research in this domain, which coalesces around three broad perspectives, namely, the service‐dominant logic of marketing, technology and service, and transformative service research. It concludes by outlining likely trends for service research into the future. Three interrelated directions are suggested: research on service in a changing context; research responding to academic schools of thought; and research responding to consumer trends.     

Educational expansion and changes in occupational returns to education in Korea

We use data from the Korean Labor and Income Panel Study (KLIPS) conducted in 1998 by the Korean Labor Institute to examine the school-to-work transition across three labor market entry cohorts of Korean men and women. Taking into account the dramatic expansion of educational system and economic changes Korean society has experienced during the last few decades, we develop hypotheses about possible changes in the effects of educational qualifications on first occupational attainment. We first conduct an OLS regression of first occupational prestige scores on education. We then look at the effects of education on the odds of entering an occupational class using multinomial logit models. The results of the two analyses indicate that educational qualifications strongly affect occupational attainment for both men and women. The effects of education, particularly junior college and university, on first occupation have declined across three labor market cohorts for women but not for men.     

成功老龄化研究--以北京老年人为例

本文利用北京老龄化多维纵向研究数据,对北京老年人的成功老龄化状况进行了分析.分析结果表明,年龄、性别、受教育程度和家庭经济状况等因素影响着成功老龄化.属于成功老龄化范畴的老年人主要是低年龄、男性、受教育时间长、拥有较多家庭财产或月收入的老年人.上述因素并不只对某一个年龄组产生影响,它们对老年的各个阶段都有影响.年龄的增长与老年人身体、心理和社会功能有着紧密的联系,在控制了年龄、性别、教育和收入变量之后,老年人之间的差异依然存在.