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排序方式: 共有1205条查询结果,搜索用时 15 毫秒
1.
Min‐Kyoung Rhee Soo Kyung Park Chung‐Kwon Lee 《International Journal of Social Welfare》2020,29(1):51-61
This study examined the prevalence of workplace flexibility and the mechanisms that allow workplace flexibility to influence turnover intentions through work–family and family–work conflicts and job satisfaction among low‐wage workers in South Korea. Participants included 250 low‐wage workers whose monthly salary was less than 2 million Korean won (approx. $1,900). The study results indicate that low‐wage workers have limited access to workplace flexibility and that workplace flexibility plays a significant protective role in reducing their turnover intention, indirectly by decreasing work–family conflicts and enhancing job satisfaction. This article also discusses the implications of these findings for labor policy and social work practice. 相似文献
2.
Towards Uniformly Efficient Trend Estimation Under Weak/Strong Correlation and Non‐stationary Volatility 下载免费PDF全文
In this paper, we consider the deterministic trend model where the error process is allowed to be weakly or strongly correlated and subject to non‐stationary volatility. Extant estimators of the trend coefficient are analysed. We find that under heteroskedasticity, the Cochrane–Orcutt‐type estimator (with some initial condition) could be less efficient than Ordinary Least Squares (OLS) when the process is highly persistent, whereas it is asymptotically equivalent to OLS when the process is less persistent. An efficient non‐parametrically weighted Cochrane–Orcutt‐type estimator is then proposed. The efficiency is uniform over weak or strong serial correlation and non‐stationary volatility of unknown form. The feasible estimator relies on non‐parametric estimation of the volatility function, and the asymptotic theory is provided. We use the data‐dependent smoothing bandwidth that can automatically adjust for the strength of non‐stationarity in volatilities. The implementation does not require pretesting persistence of the process or specification of non‐stationary volatility. Finite‐sample evaluation via simulations and an empirical application demonstrates the good performance of proposed estimators. 相似文献
3.
Bartlett correction constitutes one of the attractive features of empirical likelihood because it enables the construction of confidence regions for parameters with improved coverage probabilities. We study the Bartlett correction of spatial frequency domain empirical likelihood (SFDEL) based on general spectral estimating functions for regularly spaced spatial data. This general formulation can be applied to testing and estimation problems in spatial analysis, for example testing covariance isotropy, testing covariance separability as well as estimating the parameters of spatial covariance models. We show that the SFDEL is Bartlett correctable. In particular, the improvement in coverage accuracies of the Bartlett‐corrected confidence regions depends on the underlying spatial structures. The Canadian Journal of Statistics 47: 455–472; 2019 © 2019 Statistical Society of Canada 相似文献
4.
Aggressive behavior in pet dogs is a serious problem for dog owners across the globe, with bite injuries representing a serious risk to both people and other dogs. The effective management of aggressive behavior in dogs represents a challenging and controversial issue. Although positive reinforcement training methods are now considered to be the most effective and humane technique to manage the risk of aggression, punishment‐based methods continue to be used. Unfortunately, there has been little scientific study into the various factors influencing whether dog owners choose to use positive reinforcement techniques to manage aggression in their dogs. As such, current understanding of how best to encourage and support dog owners to use these methods remains extremely limited. This article uses a survey methodology based on protection motivation theory (PMT) to investigate the factors that influence owner use of positive reinforcement methods to manage aggressive behavior, in an attempt to understand potential barriers and drivers of use. In addition, the article provides an initial exploration of the potential role of wider psychological factors, including owner emotional state, social influence, and cognitive bias. Findings show that the perceived efficacy of positive reinforcement methods and the perceived ability of owners to effectively implement the technique are both key factors predicting future intentions and current reported use. Future interventions should focus on enhancing owner confidence in the effective use of positive reinforcement techniques across multiple scenarios, as well as helping owners manage their own emotional responses when they encounter challenging situations and setbacks. 相似文献
5.
The widely used empirical Bayes (EB) and full Bayes (FB) methods for before–after safety assessment are sometimes limited because of the extensive data needs from additional reference sites. To address this issue, this study proposes a novel before–after safety evaluation methodology based on survival analysis and longitudinal data as an alternative to the EB/FB method. A Bayesian survival analysis (SARE) model with a random effect term to address the unobserved heterogeneity across sites is developed. The proposed survival analysis method is validated through a simulation study before its application. Subsequently, the SARE model is developed in a case study to evaluate the safety effectiveness of a recent red‐light‐running photo enforcement program in New Jersey. As demonstrated in the simulation and the case study, the survival analysis can provide valid estimates using only data from treated sites, and thus its results will not be affected by the selection of defective or insufficient reference sites. In addition, the proposed approach can take into account the censored data generated due to the transition from the before period to the after period, which has not been previously explored in the literature. Using individual crashes as units of analysis, survival analysis can incorporate longitudinal covariates such as the traffic volume and weather variation, and thus can explicitly account for the potential temporal heterogeneity. 相似文献
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7.
企业资本预算管理体系的构建 总被引:2,自引:0,他引:2
资本预算管理体系是规划企业资本活动的一种原则和方法步骤的系统。它的优势是可以协助企业实现股东财富最大化目标,它的缺陷是可能导致企业决策失误及资源配置不当等,甚至威胁企业的存亡。从分析国内外关于资本预算管理体系研究的缺陷入手,针对相关资本预算管理体系研究的不足,构建了新的资本预算管理体系。在这套新的体系中,加入了资本预算的基本前提、项目评估与决策系统、资本预算考评激励机制和资本预算修正机制,从理论层次解释了企业战略与资本预算之间的关系,以期对提高我国企业资本预算管理水平有借鉴意义。 相似文献
8.
在我国由计划经济向市场经济的体制转轨过程中,货币政策和财政政策已成为我国宏观经济调节的主要手段,在我国的经济发展中发挥了重要作用。但货币政策和财政政策是各自独立的政策体系,由于作用的方式和条件有较大区别,其效果也有较大不同,文章试图应用脉冲响应函数和方差分解方法,对改革开放以来我国货币政策和财政政策的效果进行实证比较研究,并得出有关结论,为我国的宏观调控政策提供理论分析和实证检验的依据。 相似文献
9.
浅析企业集团的全面预算管理 总被引:2,自引:0,他引:2
全面预算作为一种管理手段被广泛应用于企业管理中 ,尤其是企业集团 ,导入全面预算管理更具现实意义 ,同时也是企业集团以现代企业制度为标准加强科学管理的标志。本文试探讨企业集团推行全面预算管理的组织体系、预算内容和预算流程等方面的理论问题 相似文献
10.
程宗璋 《山东理工大学学报(社会科学版)》2003,19(3):5-13
市场经济发达国家公共财政框架的一个突出特点就是它的法制基础十分完善。尽管各个国家的政治、社会、经济、文化、历史等方面存在着差异,但其共同点是整个公共财政管理框架建立在坚实的法律基础之上,政府财政收支活动的每一个环节都做到了有法可依。了解美国、英国和日本等典型国家财政法制建设的经验,对于研究构筑我国公共财政法律体系框架的思路,无疑是十分有益的。 相似文献