不确定性条件下风电并网成本分摊方式对风电供给函数的影响

根据风电间歇性特点,分析不同的并网成本分摊方式对风电供给函数的影响。基于并网成本是可再生能源投资的一个重要组成部分,研究风电生产商和电网运营商的成本分配责任界限,和不同的并网成本分摊方式对分配机制的影响。结果证明:若并网成本由电网运营商来承担,则会产生较低的生产者剩余并且致使电力消费者获得较少的转移成本。     

福建科技投入与经济增长的灰色关联

根据2000—2005年福建省科技投入与经济增长的相关统计数据,建立科技投入指标体系,运用灰色关联度模型对科技投入与经济增长进行灰色关联研究,得出科技投入对经济增长具有一定的正关联性,人力投入对经济增长的贡献作用比财力投入强的结论,并提出以科技促进经济增长的建议。     

避免键联接产生装配干涉的公差设计方案

分析了键联接进行装配时产生干涉的具体情况,介绍了保证键联接顺利装配的2种公差设计方案,并对各方案的含义、图样标注和应用特点进行了介绍。     

我国城镇居民平均消费倾向与收入分配状况关系的实证研究

中国的有效需求不足现象近年来成为一个被普遍关注的问题,而居民消费需求不足更是成为关注的焦点。本文在前人研究的基础上,从标准的消费者预期效用最大化模型出发,推导出中国城镇居民的个体"短视"消费模型和总量消费模型;运用我国1985～2004年城镇居民消费、收入及其他相关数据,通过误差修正模型和对数线性模型分别对数据进行了计量分析,发现在我国现阶段,城镇居民收入分配差距的扩大引起了居民平均消费倾向的减小,且其长期影响尤为显著。在对计量结果进行分析的基础上,本文给出了若干政策建议。     

基于转移概率和网络联系的辽宁省农村居民点适宜性评价

[目的]农村居民点适宜性评价在农村居民点调控、规划和预测中具有基础作用,且农村居民点适宜性评价应顾及农村居民点之间的社会经济活动联系。[方法]以辽宁省为研究区,首先运用逐步Logistic回归模型构建农村居民点转移概率,其次运用网络分析方法确定农村居民点图斑间的网络联系强度,最终通过加权求和方法确定农村居民点转化概率,进行农村居民点空间布局适宜性评价。[结果]辽宁省农村居民点可以划分为高度适宜类、较适宜类、一般适宜类和不适宜类4类,分别占农村居民点总面积的比例为28.18%、31.32%、13.26%和27.24%;从各地貌分区来看,高度适宜类主要集中分布在中部平原地区和东部山地丘陵区中的南方沿海地区,而不适宜类整体分布则较为零散;辽宁省中部平原区位条件好,东部沿海地区区位条件也较好,西部山地丘陵区地区较差。[结论]研究方法和结论有助于全面把握农村居民点社会经济与区位适宜性特征,为农村居民点科学规划提供科学指导。     

沈抚连接带“三生”空间的功能均衡性分析

随着人口增长和城市化发展,国土空间利用类型之间的竞争关系逐步增强,空间问题日益突显。自十八大报告明确提出"三生"空间以来,以生产、生活、生态划分的土地空间类型越来越被关注。该研究以沈抚连接带为研究区域,从土地空间的生产、生活和生态功能出发,构建"三生"功能评价指标体系。采用熵权法进行"三生"功能评价,利用GIS技术分析"三生"功能的空间格局。研究结果表明,"三生"功能均较强的街道具有较高的经济发展水平,如五三街道、李石街道,分值为64.96、54.59;生活功能较强的街道一般相邻城市,如五三街道、白塔街道、李石街道,分值为23.15、15.82、11.14,人均道路面积和公共服务设施完备度是主要影响因素;生态功能较高的街道多集中在浑河景观带和北部生态区,如高坎街道、满堂街道、东陵街道,分值为20.50、19.98、19.96,水面面积率、森林覆盖率和景观Shannon多样性是主要影响因素;生产功能较强的街道集中在建设快速区内,如李石街道、五三街道,分值为39.25、25.85,工业产值和服务业产值是主要影响因素。总体上看,受城市和经济建设活动影响强烈的街道的"三生"空间的功能不均衡性较为明显。     

Perceived corporate social responsibility and customers’ behaviors in the ridesharing service industry

This study aimed to investigate how a firm’s corporate social responsibility (CSR) practices affect customers’ attitudes, their self-brand connection, and, in turn, brand preference with ridesharing services (e.g., Uber). Adopting a second-order construct of perceived corporate social responsibility (PCSR) reflected from three CSR dimensions—environment, economy, and ethics—this study posited PCSR influences customers’ brand attitudes, self-brand connection, and brand preference. A total of 300 valid responses was collected from a convenience sample. Results revealed PCSR showed significant impacts on customers’ brand attitudes and self-brand connection. However, no direct impact of PCSR on customers’ brand preference was identified, while mediation effects were detected between PCSR and brand preference by brand attitudes and self-brand connection. This study also discussed the managerial and theoretical implications of PCSR practices for a ridesharing service industry.     

Heterogeneous firms,corporate taxes and export behavior: A firm-level investigation for Italy

This paper analyses the effect of home corporate taxes on a firm’s decision to expand the scale of its activity through exports using a rich dataset on Italian firms. Starting out from the observation that firms’ export activity vary greatly among them and tend to be systematically related to firm’s characteristics, we relate differences in firms’ export choices to firm level incidence of corporate taxes. Our results suggest that (i) corporate taxes matter at both the extensive and the intensive margin and (ii) higher corporate taxes may increase the probability of new firms’ entry in the foreign market while they decrease the export intensity of incumbent exporters.     

The association between cost of debt and Hong Kong politically connected firms

This paper investigates the association between Hong Kong politically connected (PCON) firms and their cost of debt and find these firms are associated with significantly lower interest rates being charged by lenders compared to other (non-PCON) firms. We compare our results with earlier investigations of Malaysian and U.S. PCON firms and find that our results are consistent with the results of the U.S. but inconsistent with that of Malaysia. Our results suggest that the economic wealth, the extent of political power, and the pervasiveness of firms having political connections could account for the cross-country differences between the cost of debt and PCON firms.     

Accounting students’ perceptions of effective teaching and approaches to learning: impact on overall student satisfaction

This study is concerned with the ways to improve the quality of learning experiences of accounting students. Drawing on the effective teaching and student approach to learning literature, we hypothesise that effective teaching and students’ approach to learning (deep versus surface learning) are two important predictors of the quality of the learning experience. The hypotheses were tested using survey data of second-year undergraduate students enrolled in two core accounting subjects at an Australian university. The data were analysed using the partial least-squares structural equation modelling approach. The study aims to make a useful contribution to theory and teaching practice.