首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   46篇
  免费   10篇
财政金融   7篇
工业经济   2篇
计划管理   3篇
经济学   23篇
运输经济   1篇
贸易经济   2篇
农业经济   3篇
经济概况   14篇
信息产业经济   1篇
  2023年   1篇
  2022年   1篇
  2019年   1篇
  2018年   5篇
  2017年   6篇
  2016年   5篇
  2015年   1篇
  2014年   1篇
  2013年   4篇
  2012年   5篇
  2011年   4篇
  2010年   2篇
  2009年   2篇
  2008年   3篇
  2007年   1篇
  2006年   2篇
  2005年   1篇
  2004年   2篇
  1998年   2篇
  1993年   1篇
  1989年   2篇
  1984年   1篇
  1983年   1篇
  1978年   1篇
  1973年   1篇
排序方式: 共有56条查询结果,搜索用时 0 毫秒
51.
This paper addresses a question raised by Jan de Vries' on the relationship between industriousness and the rise of the market in East Asia. Was the growing industriousness in Tokugawa Japan, as de Vries suggests, a substitute ‘for the absence of markets’? The examination refers to two versions of Chayanov's peasant farm model and their empirical relevance to the Tokugawa agrarian history, with special reference to the formation of labour‐intensive peasant farming (Akira Hayami's version of an industrious revolution), product specialisation, and the markets for production factors, land, and labour. Its implications for the Great Divergence debate are also discussed.  相似文献   
52.
53.
Objective: Patients with constipation account for 3.1 million US physician visits a year, but care costs for patients with irritable bowel syndrome with constipation (IBS-C) or chronic idiopathic constipation (CIC) compared to the general public have received little study. The study aim was to describe healthcare utilization and compare medical costs for patients with IBS-C or CIC vs matched controls from a community-based sample.

Methods: A nested case-control sample (IBS-C and CIC cases) and matched controls (1:2) for each case group were selected from Olmsted County, MN, individuals responding to a community-based survey of gastrointestinal symptoms (2008) who received healthcare from a participating Rochester Epidemiology Project (REP) provider. Using REP healthcare utilization data, unadjusted and adjusted standardized costs were compared for the 2- and 10-year periods prior to the survey for 115 IBS-C patients and 230 controls and 365 CIC patients and 730 controls. Two time periods were chosen as these conditions are episodic, but long-term.

Results: Outpatient costs for IBS-C ($6,800) and CIC ($6,284) patients over a 2-year period prior to the survey were significantly higher than controls ($4,242 and $5,254, respectively) after adjusting for co-morbidities, age, and sex. IBS-C outpatient costs ($25,448) and emergency room costs ($6,892) were significantly higher than controls ($21,024 and $3,962, respectively) for the 10-year period prior. Unadjusted data analyses of cases compared to controls demonstrated significantly higher imaging costs for IBS-C cases and procedure costs for CIC cases over the 10-year period.

Limitations: Data were collected from a random community sample primarily receiving care from a limited number of providers in that area.

Conclusions: Patients with IBS-C and CIC had significantly higher outpatient costs for the 2-year period compared with controls. IBS-C patients also had higher ER costs than the general population.  相似文献   

54.
55.
郭诗怡   《技术经济》2022,(2):71
城市化带来的环境变化是生物多样性的主要威胁, 但城市同样也是生物多样性保护的热点地区。因此,分析和预 测城市环境变化对生物多样性的影响对于维护城市生态系统服 务,提升人类福祉至关重要。目前,越来越多的研究对城市建 成环境进行了详细的分类,分别量化了各个城市特征对生物多 样性水平的影响。然而,对影响城市内生物多样性水平的因 素仍缺乏多尺度、全球性的分析。借助Web of Science和 CNKI,对来自全球37个城市的111篇文献进行了建成环境下 鸟类多样性研究方法和结果的系统性分析,并在归纳关键性城 市建成环境要素的基础上,提出了以生物多样性为导向的建成 环境优化策略,指出了鸟类多样性保护和城市可持续发展的未 来方向。  相似文献   
56.
We empirically examine the cash flow statements for Japanese banks and whether their managers engage in classification shifting to temper concerns about risk exposure. To create a buffer against liquidity shocks, they shift cash flows from investing and/or financing activities to operating activities. We also find robust evidence that classification shifting intensifies in higher risk situations. Although prior research on managerial discretion focuses on earning management, we are the first to show cash flow management to avoid sequential negative changes in operating cash flows. We show that these activities convey valuable information about changes in banks' risk exposure.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号