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   1643篇
  免费   56篇
  国内免费   15篇
财政金融   204篇
工业经济   85篇
计划管理   412篇
经济学   267篇
综合类   139篇
运输经济   27篇
旅游经济   114篇
贸易经济   309篇
农业经济   33篇
经济概况   124篇
  2024年   2篇
  2023年   27篇
  2022年   20篇
  2021年   49篇
  2020年   72篇
  2019年   59篇
  2018年   46篇
  2017年   52篇
  2016年   64篇
  2015年   55篇
  2014年   117篇
  2013年   251篇
  2012年   115篇
  2011年   131篇
  2010年   99篇
  2009年   87篇
  2008年   66篇
  2007年   80篇
  2006年   78篇
  2005年   60篇
  2004年   36篇
  2003年   26篇
  2002年   18篇
  2001年   19篇
  2000年   18篇
  1999年   13篇
  1998年   7篇
  1997年   14篇
  1996年   13篇
  1995年   4篇
  1994年   2篇
  1993年   3篇
  1992年   2篇
  1991年   6篇
  1990年   1篇
  1988年   2篇
排序方式: 共有1714条查询结果,搜索用时 15 毫秒
51.
ABSTRACT

We explore whether investors earn profits through the use of stochastic oscillator indicators (SOI) for trading stocks. The results reveal that investors might use momentum strategies when trading constituent stocks of SSE 50 as the overbought trading signals emitted by SOI. We infer that the results might be caused by herding behaviors of Chinese investors since overoptimistic moods are likely to exist as evidenced by the 80 percent trading volume traded by individual investors in the Chinese stock market.  相似文献   
52.
语言学家Swain所提出的语言输出的功能和输出假设模式是语言学研究的重要理论,系统了解输出假设理论会对我国英语教学产生积极的启示。当前我国的英语教学中存在一个突出问题,那就是"高分低能、哑巴英语、费时低效"。在英语教学实践中,重视语言输出作用,强化输出练习有助于解决这一问题。  相似文献   
53.
This article presents the legal theory of finance (LTF) and compares it with the financial instability hypothesis (FIH), identifying points of convergence and divergence. The study aims to contribute to the literature by connecting these theories and provides the following main conclusions. First, the LTF incorporates aspects of the FIH, as the theories share several key elements, particularly the presence of fundamental uncertainty, the constraint of liquidity, and the necessity for governments to act as lenders of last resort. Second, the liquidity concept used in the LTF can be better comprehended with the use of Keynesian and post Keynesian literature on the topic. Third, the LTF aims to advance and update certain aspects of Minsky’s theory, particularly with regard to the globalization of markets, power relations, and the interdependencies of the political economy of finance. The study concludes that the theories are more complementary than divergent and future studies should create an analytical framework that integrates the theories’ most insightful aspects.  相似文献   
54.
The objective of this study was to explore the relationship between promoter ownership and capital structure of firms’ using a sample of Indian publicly listed firms for the period from 2006 to 2013. We find that the relationship between promoter ownership and leverage is inversely U-shaped in group-affiliated firms, whereas in stand-alone firms there is a U-shaped relationship. We argue that a substantial presence of family owners and the selection of managers from within the family play some role for such relationship in group-affiliated firms. On the other hand, the argument for observed relationship in stand-alone firms follows from alignment hypothesis, entrenchment hypothesis, managerial risk aversion hypothesis, and active monitoring hypothesis.  相似文献   
55.
杨庆琪 《价值工程》2015,(18):66-68
结合武汉市二七长江大桥上跨铁路工程施工过程,采用模拟计算墩梁固结临时墩的受力,结合监控资料,得出其荷载的合理取值,并总结归纳墩梁固结的多种形式,分析优缺点,提出各种形式的适用范围。  相似文献   
56.
We describe and analyse the approach used by Team TinTin (Souhaib Ben Taieb and Rob J Hyndman) in the Load Forecasting track of the Kaggle Global Energy Forecasting Competition 2012. The competition involved a hierarchical load forecasting problem for a US utility with 20 geographical zones. The data available consisted of the hourly loads for the 20 zones and hourly temperatures from 11 weather stations, for four and a half years. For each zone, the hourly electricity loads for nine different weeks needed to be predicted without having the locations of either the zones or stations. We used separate models for each hourly period, with component-wise gradient boosting for estimating each model using univariate penalised regression splines as base learners. The models allow for the electricity demand changing with the time-of-year, day-of-week, time-of-day, and on public holidays, with the main predictors being current and past temperatures, and past demand. Team TinTin ranked fifth out of 105 participating teams.  相似文献   
57.
Notwithstanding the growing body of research on headquarters–subsidiary relationships, the conditions under which subsidiary autonomy leads to enhanced subsidiary performance is still a subject of debate. This study adopts a contingency approach and investigates the effects of external uncertainties and intra-MNE coordination on the performance benefits of subsidiary autonomy. The empirical analysis is based upon cross-sectional data collected from 88 European subsidiaries of Japanese MNEs. Our findings show that subsidiary autonomy has a greater impact upon performance (a) under conditions of technological uncertainty; and (b) when expatriate involvement is high, as the subsidiary can reap the full benefits of entrepreneurial capabilities and enjoy resource interdependencies through interactions with the parent simultaneously. MNC executives should aim for an appropriate balance between subsidiary autonomy and these internal and external factors so that the subsidiaries achieve superior performance.  相似文献   
58.
This study was designed to examine antecedent factors that yielded a model of purchase intention of dietary supplements in sexually oriented advertising. Results suggested that sexual cognition, gender difference, individual attitude toward advertisements, and product involvement were yielded as key predictors toward people's purchase intention of dietary supplements. However, sexually oriented advertising did not considerably increase their purchase intention. A regression analysis also loaded sexual cognition and product involvement as two key determinants in the model of purchase intention of dietary supplements. Moreover, people with a more positive level of sexual cognition significantly resulted in their higher degree of purchase intention of dietary supplements.  相似文献   
59.
In line with Kang and Herr's work (2006), this research questions the ELM's contention that celebrity credibility serves foremost as a peripheral element in a persuasive communication context. Nevertheless, in a different light to the Kang and Herr's ‘either-central-or-peripheral-role’ of a source characteristic, this research advances that celebrity credibility plays concomitantly central and peripheral roles in a persuasive message context depending on product involvement and brand-purchase motive. Particularly, this research uses the notions of ‘source internalization’ and ‘source identification’ (Kelman, 1961) to theorize that source credibility can have a concomitant dual role (peripheral and central) in a persuasion context. More precisely, this research investigates the interactive effects of source identification and internalization with product involvement as well as brand-purchase motives on consumers' attitudes and intentions. Source internalization is predicted to have persuasive effects in the contexts of high-involvement as well as informational products. Source identification is predicted to have persuasive effects in the context of low-involvement as well as transformational products. The findings of two experiments show that celebrity credibility acts through only a single route (i.e., only internalization has persuasive effects) uniformly across different product involvement levels and brand-purchase motive types. We interpret these results with the lens of the ‘match-up’ hypothesis (Kamins, 1990).  相似文献   
60.
This paper analyzes Milton Friedman's (1968a) article “The Role of Monetary Policy,” via a discussion of seven fallacies concerning the article. These fallacies are as follows: (i) “The Role of Monetary Policy” was Friedman's first public statement of the natural rate hypothesis. (ii) The Friedman–Phelps Phillips curve was already present in Samuelson and Solow's (1960) analysis. (iii) Friedman's specification of the Phillips curve was based on perfect competition and no nominal rigidities. (iv) Friedman's (1968a) account of monetary policy in the Great Depression contradicted the Monetary History’s version. (v) Friedman (1968a) stated that a monetary expansion will keep the unemployment rate and the real interest rate below their natural rates for two decades. (vi) The zero lower bound on nominal interest rates invalidates the natural rate hypothesis. (vii) Friedman's (1968a) treatment of an interest-rate peg was refuted by the rational expectations revolution. The discussion lays out the reasons why each of these seven items is a fallacy and infers key aspects of the framework underlying Friedman's (1968a) analysis.  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