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排序方式: 共有326条查询结果,搜索用时 15 毫秒
321.
This study analyses the impact of informal and web-based recruitment sources on several dimensions of SME recruitment success. Our results show that informal recruitment sources unfold a different impact on applicant-pool quantity and -quality, and applicant fit than web-based recruitment sources. Informal recruitment sources (recruitment via personal networks, employee referrals etc.) enhance applicant-pool quality, person-organization fit and person-job fit. Web-based recruitment sources primarily increases applicant-pool quantity. HR-recruitment websites also unfold a positive effect on applicant-pool quality. Accordingly, the use of these recruitment sources needs to be planned in a strategic manner, in order to achieve firm specific recruitment goals regarding applicant-pool quantity and –quality. 相似文献
322.
Matthias Thürer Mark Stevenson Cristovao Silva Martin J. Land Lawrence D. Fredendall Steven A. Melnyk 《Production and Operations Management》2014,23(3):463-476
A lead time that is short, predictable, and reliable is an increasingly important criterion in supplier selection. Although many companies may achieve this through lean implementation, high‐variety manufacturers, for example, small and medium‐sized make‐to‐order companies, have found that lean's planning and control techniques do not apply. This article outlines a planning and control concept known as workload control (WLC) that integrates customer enquiry management, including a due‐date setting rule, with order release control. Simulation is then used to assess its impact on shop performance. Results demonstrate that an integrated WLC concept can reduce the percentage of tardy jobs—so short lead times can be realistically quoted—while also reducing and stabilizing workloads. WLC can level demand and production over time when work is not standardized and it is not possible to synchronize flows on the shop floor. Results are shown to be robust to changes in routing characteristics, the mix of orders with due dates specified by the customer and proposed internally, and the strike rate (or order‐winning probability). Hence, an integrated approach to WLC represents an important step toward achieving lean in make‐to‐order companies. 相似文献
323.
AbstractThis article considers linear models with a spatial autoregressive error structure. Extending Arnold and Wied (2010), who develop an improved generalized method of moment (GMM) estimator for the parameters of the disturbance process to reduce the bias of existing estimation approaches, we establish the asymptotic normality of a new weighted version of this improved estimator and derive the efficient weighting matrix. We also show that this efficiently weighted GMM estimator is feasible as long as the regression matrix of the underlying linear model is non stochastic and illustrate the performance of the new estimator by a Monte Carlo simulation and an application to real data. 相似文献
324.
Frequently, contingency tables are generated in a multinomial sampling. Multinomial probabilities are then organized in a table assigning probabilities to each cell. A probability table can be viewed as an element in the simplex. The Aitchison geometry of the simplex identifies independent probability tables as a linear subspace. An important consequence is that, given a probability table, the nearest independent table is obtained by orthogonal projection onto the independent subspace. The nearest independent table is identified as that obtained by the product of geometric marginals, which do not coincide with the standard marginals, except in the independent case. The original probability table is decomposed into orthogonal tables, the independent and the interaction tables. The underlying model is log-linear, and a procedure to test independence of a contingency table, based on a multinomial simulation, is developed. Its performance is studied on an illustrative example. 相似文献
325.
Pedro Carneiro Costas Meghir Matthias Parey 《Journal of the European Economic Association》2013,11(Z1):123-160
We study the intergenerational effects of maternal education on children’s cognitive achievement, behavioral problems, grade repetition, and obesity, using matched data from the female participants of the National Longitudinal Survey of Youth 1979 (NLSY79) and their children. We address the endogeneity of maternal schooling by instrumenting it with variation in schooling costs during the mother’s adolescence. Our results show substantial intergenerational returns to education. Our data set allows us to study a large array of channels which may transmit the effect of maternal education to the child, including family environment and parental investments at different ages of the child. We discuss policy implications and relate our findings to the literature on intergenerational mobility. 相似文献
326.