城市文化核心竞争力与一站式办公制度

一站式办公制度对打造城市文化核心竞争力具有重要作用,但是目前一站式办公制度的建设还存在着诸多问题,严重地影响了城市文化核心竞争力的提升.为此我们要创新和完善一站式办公制度;加强一站式办公制度的行为文化建设;提高从业人员的素质;完善监督制约机制;科学设置"窗口";积极推动电子政务等,以提升城市文化核心竞争力.     

Some new augmented fractional Box–Behnken designs

The augmented Box–Behnken designs are used in the situations in which Box–Behnken designs (BBDs) could not estimate the response surface model due to the presence of third-order terms in the response surface models. These designs are too large for experimental use. Usually experimenters prefer small response surface designs in order to save time, cost, and resources; therefore, using combinations of fractional BBD points, factorial design points, axial design points, and complementary design points, we augment these designs and develop new third-order response surface designs known as augmented fractional BBDs (AFBBDs). These AFBBDs have less design points and are more efficient than augmented BBDs.     

On generalized exponential chain ratio estimators under stratified two-phase random sampling

Sanaullah et al. (2014 Sanaullah, A., Ali, H.M., Noor ul Amin, M., Hanif, M. (2014). Generalized exponential chain ratio estimators under stratified two-phase random sampling. Appl. Math. Comput. 226:541–547.[Crossref], [Web of Science ®] , [Google Scholar]) have suggested generalized exponential chain ratio estimators under stratified two-phase sampling scheme for estimating the finite population mean. However, the bias and mean square error (MSE) expressions presented in that work need some corrections, and consequently the study based on efficiency comparison also requires corrections. In this article, we revisit Sanaullah et al. (2014 Sanaullah, A., Ali, H.M., Noor ul Amin, M., Hanif, M. (2014). Generalized exponential chain ratio estimators under stratified two-phase random sampling. Appl. Math. Comput. 226:541–547.[Crossref], [Web of Science ®] , [Google Scholar]) estimator and provide the correct bias and MSE expressions of their estimator. We also propose an estimator which is more efficient than several competing estimators including the classes of estimators in Sanaullah et al. (2014 Sanaullah, A., Ali, H.M., Noor ul Amin, M., Hanif, M. (2014). Generalized exponential chain ratio estimators under stratified two-phase random sampling. Appl. Math. Comput. 226:541–547.[Crossref], [Web of Science ®] , [Google Scholar]). Three real datasets are used for efficiency comparisons.     

Measuring the Efficiency of Health Services in Lower‐income Countries: The Case of Papua New Guinea

Papua New Guinea (PNG) faces enormous health challenges and information concerning how to allocate limited health resources efficiently is lacking. This article finds that geographical location is important in achieving higher efficiency scores. In addition, it compares efficiency scores against a range of quality indicators. The results demonstrate that different conclusions are reached when efficiency scores are assessed in the context of broader health system objectives. Analyses of this kind can provide valuable information to policy‐makers in lower‐income countries.     

Kernel density estimation on the torus

Kernel density estimation for multivariate, circular data has been formulated only when the sample space is the sphere, but theory for the torus would also be useful. For data lying on a d-dimensional torus (d?1), we discuss kernel estimation of a density, its mixed partial derivatives, and their squared functionals. We introduce a specific class of product kernels whose order is suitably defined in such a way to obtain L₂-risk formulas whose structure can be compared to their Euclidean counterparts. Our kernels are based on circular densities; however, we also discuss smaller bias estimation involving negative kernels which are functions of circular densities. Practical rules for selecting the smoothing degree, based on cross-validation, bootstrap and plug-in ideas are derived. Moreover, we provide specific results on the use of kernels based on the von Mises density. Finally, real-data examples and simulation studies illustrate the findings.     

Efficiency versus fairness: The evaluation of labor market policies by economists and laypeople

The present study examines the criteria used by economic laypeople (N = 380 German citizens) and economists (N = 80 professors or postgraduates in economics) in judging reform measures as illustrated by policies of governmental labor market intervention policies. Results reveal substantial differences between economists and laypeople. Most laypersons favored labor market interventions and regarded them as both, efficient and fair. In contrast, most economists opposed labor market interventions and regarded them as both, inefficient and unfair. Using structural equation modelling we further show that the relative importance of efficiency and fairness differs between both groups. While economists base the acceptance of a certain reform measure mainly on its perceived efficiency, laypersons mainly focus on its perceived fairness. Theoretical and practical implications of our results are discussed.     

The stability of exchange networks

Economic and sociological exchange theories predict divisions of exchange benefits given an assumed fixed network of exchange relations. Since network structure has been found to have a large impact on actors’ payoffs, actors have strong incentives for network change. We answer the question what happens to both the network structure and actor payoffs when myopic actors change their links in order to maximize their payoffs. We investigate the networks that are stable, the networks that are efficient or egalitarian with varying tie costs, and the occurrence of social dilemmas. Only few networks are stable over a wide range of tie costs, and all of them can be divided into two types: efficient networks consisting of only dyads and at most one isolate, and Pareto efficient and egalitarian cycles with an odd number of actors. Social dilemmas are observed in even-sized networks at low tie costs.     

农民工的学习过程研究——基于北京城市建筑工人的调查

本文对农民打工前和打工中的学习过程进行了调查和分析,结果表明,正是学习促进了农民工人力资本的提升。而目前农民工的学习过程中还存在很多问题,尤其是缺乏有效的组织过程,学习效率不高。因此,各级政府应加强向农民工人力资本和社会资本的投资,以提高其学习的效率,实现农村劳动力的顺利转移。     

山西芦笋市场流通模式的初探

运用农产品价值链与流通效率的理论,针对山西芦笋市场两种流通模式——＂公司＋农户＂和＂公司＋合作组织＋农户＂,结合实际,进行了系统的比较,认为＂公司＋合作组织＋农户＂流通模式可极大提高山西芦笋产业的流通效率,促使山西芦笋产业的规模化发展。     

合理期待原则之法理解析

合理期待是外国行政法的一项重要原则,用以实现公共利益与私人利益之间的平衡。对于合理期待原则的法理渊源,目前外国学术界主要观点有信赖说、法治说、法治替代说、法律渗透说、经济效率说。本文将逐一介绍、评析,以证明该原则存在的正当性。