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   251篇
  免费   16篇
财政金融   36篇
工业经济   11篇
计划管理   55篇
经济学   46篇
综合类   3篇
运输经济   13篇
旅游经济   11篇
贸易经济   66篇
农业经济   7篇
经济概况   15篇
邮电经济   4篇
  2023年   1篇
  2022年   3篇
  2021年   5篇
  2020年   7篇
  2019年   12篇
  2018年   16篇
  2017年   24篇
  2016年   19篇
  2015年   8篇
  2014年   19篇
  2013年   37篇
  2012年   22篇
  2011年   15篇
  2010年   13篇
  2009年   10篇
  2008年   8篇
  2007年   4篇
  2006年   8篇
  2005年   4篇
  2004年   6篇
  2003年   4篇
  2002年   2篇
  2001年   2篇
  2000年   4篇
  1999年   2篇
  1998年   2篇
  1997年   3篇
  1991年   1篇
  1989年   1篇
  1988年   1篇
  1986年   1篇
  1972年   1篇
  1971年   2篇
排序方式: 共有267条查询结果,搜索用时 15 毫秒
261.
The potential of economic variables for financial risk measurement is an open field for research. This article studies the role of market capitalization in the estimation of Value-at-Risk (VaR). We test the performance of different VaR methodologies for portfolios with different market capitalization. We perform the analysis considering separately financial crisis periods and non-crisis periods. We find that VaR methods perform differently for portfolios with different market capitalization. For portfolios with stocks of different sizes we obtain better VaR estimates when taking market capitalization into account. We also find that it is important to consider crisis and non-crisis periods separately when estimating VaR across different sizes. This study provides evidence that market fundamentals are relevant for risk measurement.  相似文献   
262.
  • Volunteer tourism (VT) has recently been proposed as an alternative to ecotourism to link tourism and nature conservation. It is believed that VT represents an emerging tourism sector for vacationers who want to make a difference during their holidays. This investigation questions this belief using potential tourists' perceptions of volunteer tourism organisations.
  • Through a multiple sorting procedure, respondents interpreted the promotional material of volunteer tourism organisations to describe this form of tourism and differentiate between organisations. The results suggested that respondents distinguish between organisations offering a volunteering experience and a holiday experience.
  • Furthermore, the respondent's level of familiarity with expedition activities was important, as respondents with a high level of familiarity seek different benefits from their experience. The study suggests that volunteer tourism is a diverse sector, with different emphases on holiday and volunteering elements.
Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
263.
Despite an extensive body of research, the best way to model the dependence of exchange rates remains an open question. In this paper we present a new approach which employs a flexible time-varying copula model. It allows the conditional correlation between exchange rates to be both time-varying and modeled independently from the marginal distributions. We introduce a dynamic specification for the correlation using the Fisher transformation. Applied to Euro/US dollar and Japanese Yen/US dollar, our results reveal a significantly time-varying correlation, dependent on the past return realizations. We find that a time-varying copula with the proposed correlation specification gives better results than alternative dynamic benchmark models. The dynamic copula model outperforms at six different time horizons, ranging from hourly to daily, confirming the model specification.  相似文献   
264.

What are the economic effects of the Ukraine war for Ukraine, Russia, and the rest of Europe? In this study, the Vienna Institute for International Economic Studies (wiiw) sheds light on the immediate consequences on the one hand, but also on the medium-term structural changes caused by the largest armed conflict in Europe since the Second World War. The Russian invasion of Ukraine has triggered a humanitarian crisis. Pre-war, almost 19 m people lived in those regions that are currently directly affected. Refugee inflows to the rest of Europe are likely to be at least three times greater than in 2015/2016. As Black Sea ports come under Russian assault, Ukraine has lost its ability to sell more than half of its exports, primarily agricultural commodities and metals. Western financial support will become ever more important as the war continues. Turning to Russia, sanctions will have a very serious impact on that country’s economy and financial sector. Despite being partly hamstrung by the fact that a large proportion of Russian reserve assets are frozen in the EU and G7, the central bank managed to stabilise financial markets by a combination of confidence-building and hard-steering measures: capital controls, FX controls, regulatory easing for financial institutions, and a doubling of the key policy rate. The medium-term and long-term outlook is negative. As a result of the war and the sanctions, the rest of Europe faces a surge in already high inflation; this will weigh on real incomes and will depress economic growth. Many European countries rely heavily on Russia for oil and gas imports: import shares are over 75% in Czechia, Latvia, Hungary, Slovakia, and Bulgaria with respect to natural gas; Slovakia, Lithuania, Poland, and Finland with respect to oil and petroleum; and Cyprus, Estonia, Latvia, Denmark, Lithuania, Greece, and Bulgaria with respect to solid fuels. Aside from energy, the fallout via trade for the rest of Europe is likely to be small. Non-energy trade and investment links between Russia and many European countries have declined in importance since 2013. There are four main areas of structural change and lasting impact for the EU (and Europe more broadly) as a result of Russia’s invasion of Ukraine. First, the EU will get more serious about defence. Second, the green transition will gather pace. Third, broader Eurasian economic integration will be unwound. And fourth, the EU accession prospects for countries in Southeast Europe could (and should) improve.

  相似文献   
265.
Tracking farmland purchases is central to interpreting transnational finance's growing power in agrarian restructuring. Australia's public Register of foreign land ownership reveals little about agrarian change, however. In presenting the first comprehensive mapping of farmland purchases made between 2008 and 2020, this paper examines the ways that financial investments are altering farm ownership patterns in Australia. First, we show that most foreign owned land has been purchased by only 10 pastoral companies, which are implicated in speculative development activities. Second, foreign investment in cropping and horticulture is more significant than it appears in the Register, with investments in agricultural infrastructure increasingly driving land use change. Third, we illustrate the deepening entrenchment of institutional finance. By engaging with the findings from our dataset as well as with the politics of data that have shaped the availability of information, the paper progresses understandings of the financialization of farmland in both its material and ideational aspects.  相似文献   
266.

In an attempt to open the black box of high-growth firms within turbulent economic environments, this paper explores the role of corporate strategy, employee human capital and R&D capabilities in achieving exceptional growth performance in a crisis-hit economy. Relative and absolute growth measures based on both employment and sales are computed utilizing survey data on 1500 firms in the midst of the Greek crisis. Our findings indicate that adopting a geographical diversification strategy significantly increases the likelihood of becoming a fast-growing firm, irrespective of the growth metric used. Entering in diverse product markets and taking advantage of R&D capabilities appear to additionally contribute to relative employment change in HGFs of smaller size. Based on the absolute employment growth indicator, we provide some evidence that HGFs of larger size are able to grow fast through product diversification, acquiring other firms or by investing on training low-skilled employees. Nevertheless, hiring already highly educated persons seems to matter only for sales HGFs, while research collaborations are found to negatively affect the probability of growing fast in terms of sales.

  相似文献   
267.
Management Review Quarterly - Entrepreneurship as a phenomenon has changed a lot over the last years. At the same time entrepreneurship as an interdisciplinary research field has seen strong growth...  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