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   3876篇
  免费   143篇
  国内免费   22篇
财政金融   397篇
工业经济   224篇
计划管理   768篇
经济学   759篇
综合类   372篇
运输经济   51篇
旅游经济   42篇
贸易经济   487篇
农业经济   219篇
经济概况   718篇
邮电经济   4篇
  2024年   2篇
  2023年   28篇
  2022年   45篇
  2021年   134篇
  2020年   84篇
  2019年   52篇
  2018年   59篇
  2017年   99篇
  2016年   92篇
  2015年   133篇
  2014年   163篇
  2013年   230篇
  2012年   306篇
  2011年   401篇
  2010年   404篇
  2009年   268篇
  2008年   281篇
  2007年   259篇
  2006年   297篇
  2005年   288篇
  2004年   86篇
  2003年   79篇
  2002年   66篇
  2001年   72篇
  2000年   22篇
  1999年   26篇
  1998年   7篇
  1997年   7篇
  1996年   12篇
  1995年   5篇
  1994年   4篇
  1993年   7篇
  1990年   3篇
  1988年   5篇
  1987年   1篇
  1985年   2篇
  1984年   3篇
  1983年   1篇
  1982年   1篇
  1981年   2篇
  1980年   5篇
排序方式: 共有4041条查询结果,搜索用时 0 毫秒
1.
Using a dynamic national computable general equilibrium model, we investigate the impact of carbon tax and energy efficiency improvement on the economy and environment of China. The Chinese social account matrix is presented based upon the latest input–output table (2012 IO table) and other data. The business as usual (BAU) scenario is designed according to several forecasts about China by 2030, followed by six policy scenarios, including different levels of carbon tax and technological progress as well as their combinations. The results show that carbon tax will frustrate the overall economic growth slightly. The CO2 emission will be 13.81% lower in 2030 compared to BAU case if the carbon tax scheme is carried out at a rate of 200 RMB/ton of CO2. Technological progress will stimulate the economic growth, enrich the household and government income, increase total investment and make most sectors prosperous with the exception of energy industries.  相似文献   
2.
近十年来房地产开发迅猛,在满足人们居住需求的同时也伴随着大量泡沫的涌现。中央提出的供给侧改革、去库存和能效提升给建筑部门指明了发展方向,有效地实施供给侧改革是建筑部门一项重要工作。拟通过开展去库存及建筑总量控制对三四线城市能源消耗的影响研究,为建筑部门的供给侧改革提供建议和参考。站在建筑部门宏观视角,通过文献调查,分析总结了建筑终端能耗影响因素及其影响效应,梳理了中国建筑总量、库存量及建筑领域能源消耗量总体情况,论述了三四线城市去库存、进行建筑总量控制的重要性;在此基础上,根据分析结果、三四线城市特点及数据可获得性,选定自变量和因变量及量化指标,运用岭回归方法,以6个城市的数据为例进行三四线城市建筑总量控制、去库存政策对城市能耗影响效果的定量分析;最后基于彼此间关系及研究过程中发现的问题对建筑部门的供给侧改革工作提出建议。  相似文献   
3.
Advertising situated in environments where people congregate or pass through on their way to somewhere else benefit from being placed in such high traffic areas. However, these strategically placed ads also suffer from conditions of human crowding that prevents them from being noticed and processed. We undertake a study of place-based advertising in a shopping mall using facial recognition software to determine the effect of human density on the attention directed to advertising. We find that as human density increases, attention to advertising decreases, but only to a point where it begins to increase again. Our research also finds that human density plays a moderating role on the motivation to process advertising.  相似文献   
4.
Boundary‐spanning individuals (BSIs) play a critical role in supply chain management, especially in small and medium‐sized enterprises (SMEs) where interactions with buyers and suppliers can depend heavily on just a few individuals. This study, utilizing data from Korean manufacturing‐sector SMEs, explores whether cooperative social value orientations of SMEs' BSIs influence the effects of collaborative buyer‐supplier initiatives. The results suggested that the performance implication of decision‐sharing initiative increases when BSIs have a high level of cooperative social value orientation. However, it also negatively moderates the relationship between risk/benefit sharing (involving financial losses or gains) and performance suggesting possible negative side effects. However, we found that such orientation also negatively moderates the relationship between risk/benefit sharing (involving direct financial losses or gains) and relationship performance suggesting possible negative side effects.  相似文献   
5.
Using data on job approval ratings of governors, U.S. senators, and the president, we find that firms located in states with high approval ratings outperform firms located in states with low approval ratings by .64% per month. Furthermore, this relationship is stronger when investors are actively involved in politics, when local politicians are closer to the center of political power, for small firms that have a larger proportion of local investors, and for financially strong areas where investors are ready to execute investments in local stocks. Overall, our study shows that investors’ political sentiment is important in determining stock returns.  相似文献   
6.
This paper develops a model explaining how acquisitions of controlling block ownership can facilitate post‐takeover fraud by new managers when investor protection is poor. Based on disclosures of embezzlement or breach of fiduciary duty in Korean firms, we find that the probability of explicit looting in takeover targets is 13%, almost five times as large as a matched sample of non‐targets. Post‐takeover frauds are primarily driven by transfers of minority blocks, while the corresponding probability in majority acquisitions is statistically indistinguishable from the non‐targets. These findings may explain why minority acquisitions of controlling blocks are popular under poor investor protection.  相似文献   
7.
将城市规模引入新空间经济学理论模型,探讨公共服务、城市规模对人才区位的影响机制,并且利用2011-2017年CMDS微观数据匹配244个城市数据进行实证检验。结果显示:①城市规模对公共服务影响人才区位具有非线性门槛效应,只有当城市规模满足一定门槛条件时,增加公共服务供给才能显著吸引人才流入;②全国层面的实证分析有效验证了理论预期;③分区域看,东部与中西部地区门槛条件具有异质性,东部地区人才流动呈现竞争效应,中西部地区呈现集聚效应;④分城市等级看,大城市与中小城市门槛条件差异明显,满足门槛条件时,加大中小城市公共服务供给,吸引人才效果会更显著。最后提出基于城市规模和区域异质性的公共服务供给对策。  相似文献   
8.
There has been a steady growth of goodwill impairments in the Chinese stock market since the adoption of the impairment approach in accounting. The influence of goodwill impairments on a firm’s financial position and profitability give reason to doubt its current and future performance. We examine whether auditors, as a crucial external monitor, identify the information risks of goodwill impairments and express their concerns about financial reporting quality in their audit opinions. Using a sample of firms listed on China’s A-share market from 2007 to 2017, we test the association between goodwill impairments and the type of audit opinion received in the same financial period. Our findings are as follows. First, the probability of receiving a modified opinion increases with the amount of goodwill impairments. Second, the positive association between goodwill impairments and modified audit opinions is driven primarily by earnings management risks. Third, this positive association is more salient when auditors are industry experts and there is no auditor–client mismatch. Fourth, auditors are more sensitive to the amount of goodwill impairments than to their mere existence. Overall, we document that auditors perceive goodwill impairments as a signal of information risks and communicate their concerns to investors to avoid litigation.  相似文献   
9.
杨东 《价值工程》2021,40(12):92-93
在我国经济实力不断增强的社会背景下,我国的建筑行业发展十分迅速,在数量、质量上,相较于以往都有了较大的突破.但在实际的施工过程中,由于我国高层建筑数量的逐渐增多,地基的深度逐渐增大,在施工中如果对相关的施工技术没有进行一定的选择,就会对人们后期的使用产生较大的威胁.深基坑支护技术的迅速发展和广泛应用不仅在于它们能够促进我国建筑项目工程施工的有序性和顺利进行,也能充分满足实际的施工服务所需,从而保证我国建筑项目工程的施工整体设计施工服务质量,促进我国建筑工程行业的快速健康稳定发展.  相似文献   
10.
Group Decision and Negotiation - In group decision making, it is sensible to achive minimum consensus cost (MCC) because the consensus reaching process resources are often limited. In this...  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