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排序方式: 共有875条查询结果,搜索用时 15 毫秒
31.
党的十八大强调夺取中国特色社会主义新胜利,必须坚持人民主体地位。笔者分析了我国转型时期主体自觉性缺失对人民当家作主的制约,提出了通过健全各项民主制度扩大人民当家作主的群众基础、加强法制宣传教育以增强人民依法维权自觉性、建设社会主义核心价值体系提供精神动力和思想保证等措施来构建人民当家作主的主体自觉性。 相似文献
32.
粒子群算法的惯性因子是算法中的一个重要的参数,目前的研究结果表明,惯性因子为减函数时算法的运行效果更为良好。文中提供了四种减函数作为惯性因子可以使用的算子,它们的凹凸性各有不同。对四个算例的数值仿真结果表明,表现最好的是惯性因子先上凸后下凸的PSO,惯性因子为下凸函数的PSO综合表现优于惯性因子为上凸函数的情况。 相似文献
33.
Umakrishnan Kollamparambil 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2021,89(2):301-323
Aside from the very high inequality of land ownership, South Africa is characterised by a dual land tenure system comprising of private ownership and communal land ownership. Using waves 4 and 5 of the National Income Dynamics Study longitudinal data set, a set of econometric methodologies is employed to quantify the impact of ownership and tenure on an index of subjective wellbeing (SWB) constructed from eight self-reported responses covering general life satisfaction, contrast, social capital, mental health and hope for future. Controlling for the income effect and other pertinent drivers of SWB, the study highlights the non-income impact of land ownership and tenure on the subjective wellbeing of individuals. To account for possible endogeneity and self-selection, instrumental variable and matching method-based treatment effects are computed. This paper has two main findings in relation to land tenure in South Africa: (a) land owners have on average a higher index of SWB compared to those not owning land, and (b) owning land privately, compared to owning land communally, has a positive impact on subjective wellbeing within land owners. These results are consistent and statistically significant across the various estimation strategies and provide additional motivation for expediting land reforms in South Africa. 相似文献
34.
This study examined the predictors of intention to engage in a cosmetic surgery. A convenience sampling approach utilizing a self-administered pen-and-paper and online survey was used to collect 214 responses in Australia. Favorable attitude had a significant positive effect on intention to engage in a cosmetic procedure for female respondents. On the other hand, subjective norms had a significant positive effect on intention to engage in a cosmetic procedure for male respondents. Managerially, findings will help practitioners in the cosmetic surgery industry to implement marketing strategies that target this growing consumer segment. 相似文献
35.
We conduct a laboratory experiment with agents working on, and principals benefiting from, a real effort task in which the agents' performance can only be evaluated subjectively. Principals give subjective performance feedback to agents, and agents have an opportunity to sanction principals. In contrast to existing models of reciprocity, we find that agents tend to sanction whenever the feedback of principals is below their subjective self‐evaluations even if agents' pay‐offs are independent of it. In turn, principals provide more positive feedback (relative to their actual performance assessment of the agent) if this does not affect their pay‐off. 相似文献
36.
In this paper, we try to identify the price determinants in the biggest real estate market of Greece, the metropolitan area of Athens. For that purpose, various spatial econometric models are used to explore their prediction ability and we are displaying the variations in property prices for the wider area of Athens. These models have been compared based on different criteria such as model fit, the Akaike information criterion and variance of the residuals. Our results indicate that, in our case, the spatial general model is the most appropriate simultaneous autoregressive model when dealing with spatially autocorrelated prices of housing properties data, in terms of our selection criteria. 相似文献
37.
Jorge Ridderstaat Robertico Croes Peter Nijkamp 《Journal of Sustainable Tourism》2016,24(10):1461-1479
This study postulates that tourism development (TD) and residents' quality of life (QoL) may have an intrinsically reciprocal relationship. The possible connection between TD and QoL is investigated in the island of Aruba, with economic development as a mediating variable. This investigation contributes to the literature by emphasizing the active role of QoL in the relationship with TD through a subjective well-being approach, and by expanding our understanding of the development concept. The study also advances the scope of tourism theory by presenting new propositions. The methodology consists of applying exploratory and confirmatory factor analyses combined with structural equations modeling. The results suggest that TD has a direct and indirect impact on QoL, and that QoL has an indirect effect on TD, via economic development. These findings provide new insights on the dimensions that shape the link between TD and QoL. 相似文献
38.
39.
提出了一种确定权重区间的方法,即将由多位专家确定的主观权重和用多种方法计算的客观权重相结合,形成权重区间,通过分析主客观权重区间的重合关系,计算权重区间的置信度和精确度,据此对权重区间进行循环优化。最后用算例表明了该方法的科学性和可操作性。 相似文献
40.