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   3965篇
  免费   185篇
  国内免费   42篇
财政金融   633篇
工业经济   149篇
计划管理   549篇
经济学   867篇
综合类   364篇
运输经济   141篇
旅游经济   133篇
贸易经济   790篇
农业经济   262篇
经济概况   304篇
  2024年   6篇
  2023年   76篇
  2022年   32篇
  2021年   90篇
  2020年   154篇
  2019年   156篇
  2018年   129篇
  2017年   162篇
  2016年   152篇
  2015年   126篇
  2014年   222篇
  2013年   418篇
  2012年   217篇
  2011年   273篇
  2010年   166篇
  2009年   237篇
  2008年   283篇
  2007年   221篇
  2006年   260篇
  2005年   181篇
  2004年   139篇
  2003年   97篇
  2002年   85篇
  2001年   80篇
  2000年   41篇
  1999年   40篇
  1998年   26篇
  1997年   32篇
  1996年   25篇
  1995年   13篇
  1994年   21篇
  1993年   6篇
  1992年   6篇
  1991年   7篇
  1990年   2篇
  1988年   3篇
  1987年   1篇
  1986年   1篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1980年   1篇
排序方式: 共有4192条查询结果,搜索用时 31 毫秒
91.
This study investigates the role of hedging and portfolio design among stocks, exchange rates, and gold in small open economies (SOEs) from 4 January 2000 to 31 March 2020. We adopt the trivariate dynamic conditional correlation-fractionally integrated asymmetric power ARCH model and unconditional quantile regression model, and our findings show that the hedging role of the U.S. dollar (USD) and gold against stocks differs under regular and extreme market conditions. The USD can act as a powerful hedge asset for stocks in regular market periods. Moreover, during the global financial crisis and COVID-19 outbreak, the safe-haven effect of gold becomes stronger for almost all stocks, whereas the USD can serve as a strong safe haven against stock markets of Korea, Taiwan, and Singapore when stock returns are extremely low. In terms of portfolio designing, we find that adding the USD and gold to portfolios improves their hedging effectiveness, and the optimally weighted stock-USD-gold portfolio is the best portfolio strategy, irrespective of referring to return or risk.  相似文献   
92.
Traditional internationalization models suggest multinational companies (MNCs) can exploit their accumulative experience to facilitate their sequential entries. However, experience may depreciate over time. Thus, obtaining benefits from prior experience for MNCs is based on two critical premises, i.e., interpreting and applying experience correctly. We argue that there is a need to study the newness dimension of experiential learning. In doing so, we aim to explore to what extent the newness of experience matters in overseas sequential entries for MNCs. Moreover, we expect that the benefits from recent experience in guiding sequential entries are contingent on the extent of context similarity between the most recent entry location and sequential entry location and the outcome expectancy of focal entry. With a sample of 112 Chinese listed firms and 410 observations during the period of 2000–2012, we find that else being equal, the newness of experience of MNCs is positively associated with sequential entry and such a relationship is positively moderated both by context similarity in institutional environment and the outcome expectancy of the focal entry. We also compare the effects of the newness of different types of experience and find that the newness of the most recent experience has a larger influence on sequential entry than location-specific experience and general experience.  相似文献   
93.
94.
We investigate the determinants of the demand for Japanese government bonds (JGBs) by commercial banks in Japan. In particular, by estimating portfolio equations for JGB demand and bank loans, based on a panel data set from the late 1990s to the 2000s, we rigorously test the popular assertion that the long stagnation of the real economy caused a shift in the portfolios of commercial banks from bank lending to JGBs. We find that the popular assertion is not empirically supported. Rather, the portfolio shift from loans to JGBs has been caused by a fall in the ratio of the loan rate to unit lending costs, or the bank’s price–cost margin for lending.  相似文献   
95.
A marriage between public bicycle and rail transit presents new opportunities for sustainable transportation in Chinese cities. To examine determinants of public bicycle usage for rail transit access, an intercept survey of feeder mode choice among rail transit users was conducted near rail stations in Nanjing, China. Mode choice models were estimated with five feeder mode alternatives, including car, bus, walk, private bike, and public bike. By differentiating between public and private bicycle modes in the mode choice models, the study reveals the effects of personal demographics, trip characteristics, and station environments on public bicycle usage for rail transit access. Results show that female, older, and low-income rail commuters are less likely to use public bicycle to access rail transit. Rail commuters with bicycle theft experience and making school- or work-related trips are more likely to use public bicycle to access rail transit. Land use variables are largely insignificant in this study except that density shows a positive relationship with walking to rail transit. The results on demographic differences raise equity concerns when it comes to investing in public bicycle systems. Policy implications are discussed for Chinese cities to equitably boost public bicycle integration with rail transit.  相似文献   
96.
The aim of this study was to investigate if a changed default reduces the intake of butter among students at a breakfast buffet. Students were divided into two groups and served themselves from a breakfast buffet. The control group was offered a buffet where the butter was easily accessible, whereas the intervention group was offered a buffet where a request had to be made for butter. Single packed portions of butter taken from each part of the buffet, the number of students, and the number of habitual users in each group were recorded. At the regular buffet, 67 of 115 students were habitual butter users and 81 packs of butter were taken. At the buffet with the changed default, 16 of the 56 students were habitual butter users. Seventeen packs of butter were taken from the buffet. Slightly displacing butter at a breakfast buffet and forcing students to ask for that option significantly reduced uptake.  相似文献   
97.
Large consumer goods firms manage and market an assortment of brands and consistently deal with strategic challenges related to brand portfolio management, such as creating or acquiring brands, growing brand equity, managing brands in the portfolio and deleting brands. There is substantial research on several areas of brand portfolio management except in the area of brand deletion. This situation exists despite the fact that deleting weak brands has important implications for a firm and its brand portfolio. Therefore, it is critical to understand why firms delete brands from their portfolios. This research applies a qualitative approach using semi-structured interviews and thematic analysis in the context of firms that adopt a ‘house of brands’ brand architecture and presents findings guided by the strategic decision-making literature.  相似文献   
98.
Recently, Chinese carriers entered the Australia–Europe route, a market currently served by several established airlines. The paper aims to explore and identify the contextual factors affecting the choice of China-based carriers for long-haul travel. The paper's innovation is in the way it uses the online comments made by readers of an aviation news article. In doing so, the paper highlights the advantages and limitations of such a data source and the full range of positive and negative perceptions about Chinese airlines as recorded by potential and actual travelers. This study highlights that in order to understand flight choice, it is worthwhile to consider the conventional itinerary choice factors in the context of the socio-cultural and historical influences. For researchers, the paper provides some evidence that air travelers apply compensatory decision rule in making airline choices. This supports the validity of the assumption of random-utility based choice models used in the study of air travel behavior.  相似文献   
99.
Corporate lobbying activities are designed to influence legislators, regulators and courts, presumably to encourage favorable policies and/or outcomes. In dollar terms, corporate lobbying expenditures are typically one or even two orders of magnitude larger than spending by Political Action Committees (PAC), and, unlike PAC donations, lobbying amounts are direct corporate expenditures. We use data made available by the Lobbying Disclosure Act of 1995 to examine this more pervasive form of corporate political activity. We find that, on average, lobbying is positively related to accounting and market measures of financial performance. These results are robust across a number of empirical specifications. We also report market performance evidence using a portfolio approach. We find that portfolios of firms with the highest lobbying intensities significantly outperform their benchmarks in the three years following portfolio formation.  相似文献   
100.
The purpose of this paper is to gain insights into low-cost, long-haul (LCLH) and full-service carrier (FSC) passenger preferences in the trans-Atlantic market. A total of 1412 economy and premium economy passengers were surveyed at Los Angeles and Seattle-Tacoma International Airports. The underlying factors comprised of passenger travel attributes were: Operations, Comfort, Onboarding, Service, and Flight Schedule, along with a variable, Airfare. Satisfaction with Airfare (#1 priority) and Comfort (#2 priority) impacted choice of LCLH carrier, whereas satisfaction with Service (#3 priority) and Flight Schedule (#4 priority) impacted choice of FSC. Both carrier types have a place in the trans-Atlantic market, although passenger loyalty was stronger for an all-inclusive FSC offering (76%) than a no frills LCLH offering (55%).  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