全文获取类型
收费全文 | 1088篇 |
免费 | 54篇 |
国内免费 | 58篇 |
专业分类
管理学 | 226篇 |
劳动科学 | 1篇 |
民族学 | 6篇 |
人口学 | 23篇 |
丛书文集 | 90篇 |
理论方法论 | 35篇 |
综合类 | 550篇 |
社会学 | 239篇 |
统计学 | 30篇 |
出版年
2024年 | 4篇 |
2023年 | 21篇 |
2022年 | 41篇 |
2021年 | 59篇 |
2020年 | 57篇 |
2019年 | 61篇 |
2018年 | 51篇 |
2017年 | 61篇 |
2016年 | 65篇 |
2015年 | 56篇 |
2014年 | 102篇 |
2013年 | 169篇 |
2012年 | 60篇 |
2011年 | 83篇 |
2010年 | 57篇 |
2009年 | 44篇 |
2008年 | 40篇 |
2007年 | 34篇 |
2006年 | 40篇 |
2005年 | 30篇 |
2004年 | 24篇 |
2003年 | 9篇 |
2002年 | 15篇 |
2001年 | 13篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1993年 | 1篇 |
排序方式: 共有1200条查询结果,搜索用时 15 毫秒
以子博弈完美纳什均衡作为分析工具,分析了电子商务与物流服务发展的不均衡现象,并将网购过程中卖方与快递企业之间的讨价还价过程与贴现因子联系起来,通过模型在节假日期间的应用,从贴现因子对均衡解的影响分析了卖方与快递企业的利益变化。最终得出结论,贴现因子是影响卖方与快递企业所承担的快递费用的重要因素并提出了相应建议。 相似文献
42.
《Journal of Technology in Human Services》2013,31(3-4):229-244
SUMMARY Limited research exists that examines student perceptions of online discussions in fully online classes. This is a report of initial investigation into undergraduate distance education majors' perspectives of the pedagogical value of online discussions. Over a two semester period (Spring and Fall, 2003), students taking the same online course delivered using Web Course Tools (WebCT) were surveyed regarding opinions of online discussions. The students surveyed were undergraduate students enrolled in a fully online degree program at New Mexico State University (NMSU). Although limitations exist due to small sample size and a non-standardized data collection instrument, findings from this exploratory study offer insight into undergraduate distance education student opinions of the strengths and weaknesses of online discussions as a pedagogical tool. 相似文献
43.
《Journal of Technology in Human Services》2013,31(1-2):111-138
SUMMARY This article provides an overview of the purposes, development, and implementation of the School Success Profile Online (SSP)–a computerized, self-report survey for middle and high school students. The SSP takes advantage of World Wide Web technology and the increasing access of public schools to computers and the Internet to assess students' perceptions of their neighborhoods, schools, peers, and families, as well as their own psychological and physical health and school performance. The individual and group profiles generated by the SSP can help school social workers identify areas of concern, plan their interventions with students, and evaluate the impact of their efforts at the end of interventions. 相似文献
44.
角色变异:网络传播挑战“把关人”权利 总被引:5,自引:0,他引:5
刘路悦 《湛江师范学院学报》2002,23(5):77-80
20世纪末期兴起的网络传播,使大众传播的“把关人”权利受到严峻挑战。“把关人”已由传统的单向传播与控制信息向多元角色转换,成为集传播与接受、调整与变革为一体的新型网络信息调控。网络传播“把关人”的角色定位,是21世纪新闻传播需要研究的重要课题。 相似文献
45.
在电子商务环境下,宽松的退货政策能够刺激需求,促进货品销量的增长,但与此同时也导致了退货量的增多。在面临高退货,特别是无缺陷退货不断攀升的挑战下,在线商家应如何制定合理的退货策略成为值得研究的一个问题。本文主要针对退货运费承担问题,重点比较消费者承担退货运费、商家承担退货运费、双方共同承担退货运费三种策略,探讨不同策略下在线零售商的最优定价及其盈利能力。研究结果表明:为实现利润最大化,在线零售商应根据商品的无缺陷退货比例特征选择相应的策略。具体而言,当商品的无缺陷退货比例较低时,宜采用消费者承担退货运费策略;当无缺陷退货比例高时,宜采用商家承担退货运费策略;当无缺陷退货比例居中时,宜采用共同承担退货运费策略。值得注意的是,退货政策的目的是为了刺激需求的增长,但有时退货政策对需求的促进作用不够理想,不能抵消退货的负面影响,那么这种情况下则无论无缺陷退货占比如何,在线零售商的最佳退货策略只能是让消费者承担退货运费,以此避免更多非理性退货行为的发生。 相似文献
46.
在线下垂直实力对等、制造商主导和实体店主导三种渠道权力结构下,构建制造商、实体店和电商之间的博弈模型,探讨线下渠道权力结构与制造商线上销售模式的匹配关系。研究结果表明:(1)当电商要求的佣金比例较小时,在不同的线下渠道权力结构下,制造商都应该选择线上代销模式;而当电商要求的佣金比例较大时,在线下垂直实力对等结构下,制造商应该选择线上转销模式,而在制造商主导和实体店主导结构下,制造商应该选择线上代销模式。(2)当制造商选择线上转销模式时,在线下制造商主导的结构下,制造商给予实体店的批发价格最大,在垂直实力对等结构下次之,在实体店主导结构下最小。然而,线下渠道权力结构的差异并不会影响制造商给予电商的批发价格。(3)当制造商选择线上代销模式时,在线下制造商主导结构下,线下销售价格最高;在线下垂直实力对等结构下,线上销售价格最高。 相似文献
47.
结合网络购物体验和个性化推荐的相关理论,对个性化推荐、网络购物体验、隐私关注之间的关系进行实证研究。通过设计不同的场景和采用问卷调查法收集数据,运用SPSS软件对数据进行多元线性回归分析对研究的问题进行验证和探讨。实证分析结果表明,购物网站推荐的个性化程度与消费者的网络购物体验之间存在正向作用关系,消费者的隐私关注在其中发挥调节作用。 相似文献
48.
The Effects of the Facial Expression of Beneficiaries in Charity Appeals and Psychological Involvement on Donation Intentions 下载免费PDF全文
To increase the effectiveness of fundraising campaigns, many human‐need charities include pictures of beneficiaries in their ads. However, it is unclear when and why the facial expression of these beneficiaries (sad versus happy) may influence the effectiveness of charity ads. To answer these questions, an experiment was conducted to investigate the effect of the facial expression on donation intentions, while considering the moderating role of psychological involvement with charities. It found that psychological involvement with charities moderated the impact of the facial expression on donation intentions in that seeing a picture of a sad versus happy person increased intentions to give among participants with lower levels of psychological involvement, whereas the reverse was true for highly involved participants. The moderating effect of psychological involvement was fully explained by the perceived efficacy of one's donation. The findings not only contribute to our understanding of the effect of the facial expression of people pictured in charity appeals on donation behavior, but also suggest that nonprofits should tailor their ads to target potential donors with various levels of psychological involvement with charities. 相似文献
49.
Dacheng Chen Juin Kuan Chong 《Journal of Statistical Computation and Simulation》2017,87(9):1863-1876
We propose a competing risks approach to analyse customer behaviours in freemium products and services. The event of interest is when a customer starts to pay for additional features or functionalities. The observation of such an event may be preempted by an event where the customer quits using the product before paying and consuming the additional features or functionalities. One such freemium service is the online game category. The Fine-Gray regression model was implemented for an online game player activity data to study how covariates affect the paying hazard. Some covariates are hypothesized to have different discrete effects at multiple change points. We extend the model to allow for possible change points in the analysis. 相似文献
50.
Sebastian Steinker Kai Hoberg Ulrich W. Thonemann 《Production and Operations Management》2017,26(10):1854-1874
To be efficient, logistics operations in e‐commerce require warehousing and transportation resources to be aligned with sales. Customer orders must be fulfilled with short lead times to ensure high customer satisfaction, and the costly under‐utilization of workers must be avoided. To approach this ideal, forecasting order quantities with high accuracy is essential. Many drivers of online sales, including seasonality, special promotions and public holidays, are well known, and they have been frequently incorporated into forecasting approaches. However, the impact of weather on e‐commerce operations has not been rigorously analyzed. In this study, we integrate weather data into the sales forecasting of the largest European online fashion retailer. We find that sunshine, temperature, and rain have a significant impact on daily sales, particularly in the summer, on weekends, and on days with extreme weather. Using weather forecasts, we have significantly improved sales forecast accuracy. We find that including weather data in the sales forecast model can lead to fewer sales forecast errors, reducing them by, on average, 8.6% to 12.2% and up to 50.6% on summer weekends. In turn, the improvement in sales forecast accuracy has a measurable impact on logistics and warehousing operations. We quantify the value of incorporating weather forecasts in the planning process for the order fulfillment center workforce and show how their incorporation can be leveraged to reduce costs and increase performance. With a perfect information planning scenario, excess costs can be reduced by 11.6% compared with the cost reduction attainable with a baseline model that ignores weather information in workforce planning. 相似文献