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   2885篇
  免费   138篇
财政金融   512篇
工业经济   213篇
计划管理   521篇
经济学   702篇
综合类   30篇
运输经济   40篇
旅游经济   82篇
贸易经济   530篇
农业经济   165篇
经济概况   210篇
信息产业经济   1篇
邮电经济   17篇
  2023年   22篇
  2022年   19篇
  2021年   37篇
  2020年   62篇
  2019年   95篇
  2018年   120篇
  2017年   146篇
  2016年   114篇
  2015年   75篇
  2014年   143篇
  2013年   336篇
  2012年   132篇
  2011年   154篇
  2010年   124篇
  2009年   153篇
  2008年   125篇
  2007年   105篇
  2006年   87篇
  2005年   78篇
  2004年   60篇
  2003年   73篇
  2002年   70篇
  2001年   50篇
  2000年   37篇
  1999年   31篇
  1998年   46篇
  1997年   49篇
  1996年   43篇
  1995年   27篇
  1994年   34篇
  1993年   37篇
  1992年   31篇
  1991年   17篇
  1990年   20篇
  1989年   18篇
  1988年   15篇
  1987年   10篇
  1986年   11篇
  1985年   26篇
  1984年   20篇
  1983年   19篇
  1982年   13篇
  1981年   20篇
  1980年   15篇
  1979年   19篇
  1978年   12篇
  1977年   19篇
  1976年   12篇
  1975年   11篇
  1971年   6篇
排序方式: 共有3023条查询结果,搜索用时 15 毫秒
971.
The extensive literature on community participation in the targeting and management of humanitarian food assistance suggests that participatory approaches work best in slow-onset emergencies with no conflict or displacement. Yet the policies of many agencies—and compliance with Sphere minimum standards—require that the recipient community participate in decisions about the assistance they receive including targeting, regardless of the causes of the emergency. This paper analyzes current practice in the targeting and management of humanitarian food assistance in complex emergencies, the constraints to recipient communities’ participation, and the possibilities for participatory approaches to improve targeting.  相似文献   
972.
There are several tools in the literature that support innovation in organizations. Some of the most cited are the so-called technology roadmapping methods, also known as TRM. However, these methods are designed primarily for organizations that adopt the market pull strategy of technology-product integration. Organizations that adopt the technology push integration strategy are neglected in the literature. Furthermore, with the advent of open innovation, it is possible to note the need to consider the adoption of partnerships in the innovation process. Thus, this study proposes a method of technology roadmapping, identified as method for technology push (MTP), applicable to organizations that adopt the technology push integration strategy, such as SMEs and independent research centers in an open-innovation environment. The method was developed through action-research and was assessed from two analytical standpoints: externally, via a specific literature review on its theoretical contributions, and internally, through the analysis of potential users' perceptions on the feasibility of applying MTP. The results indicate both the unique character of the method and its perceived implementation feasibility. Future research is suggested in order to validate the method in different types of organizations  相似文献   
973.
This work compares the effects of neoliberal and post-neoliberal land-use policies on forest cover along the Corredor Bioceánico of southeastern Bolivia to determine if rates of agriculturally driven forest clearance have changed since the Morales’ administration came to office in 2005. Satellite image analysis, supported by semi-structured interviews with farmers and representatives of key institutions, shows that deforestation for commercial agriculture in Santa Cruz continues and has increased in certain “hotspots”. Previous research has shown that the environmental effects of neoliberalism on forest cover are varied, but more broadly, reduced state intervention has meant less environmental regulation and greater deforestation, while strong government is better able to curtail deforestation. Although neoliberal policies triggered an unprecedented level of forest clearing in Bolivia, rates have generally continued to increase and can be indirectly linked to the administration's new agrarian reform and pro-environmental regulations. This trend is counterintuitive and stems from unanticipated responses such as deforestation through fire to prove productive use under the reform's socio-economic function requirements. Given increased regulation and enforcement of forest clearing and burning under Morales, in contrast to the neoliberal era, our analyses suggest that rates will continue to increase under the current political climate, which has further polarized the opposition in Santa Cruz.  相似文献   
974.
This study examines the economic impact of sustainable agricultural production systems in Central America. In particular, we investigate the impact of investments promoted by the MARENA Programme in Honduras on the total value of agricultural production (TVAP) of its beneficiaries. Propensity Score Matching techniques along with the Difference‐in‐Differences framework are used to mitigate biases stemming from differences in observed as well as unobserved (time‐invariant) characteristics between beneficiaries and a control group. The econometric estimates suggest that MARENA has had a positive and significant effect on the TVAP of beneficiaries. In addition, the analysis shows that, under alternative scenarios, MARENA yielded higher than expected internal rates of return. The results of this study shed light on the response of small‐scale hillside farmers to economic incentives and lend support to the role of natural resource management projects in Central America as a tool to increase household income while also promoting the conservation of natural resources.  相似文献   
975.
This paper contributes to an institutional theory of crime. More specifically, it focuses on the problem of the mafia and the infiltration of legitimate businesses. In legal markets, the mafia resorts to artificial scarcity as a functioning principle. Although scarcity and its consequences for market economies are key aspects of mainstream economics, they have been insufficiently analyzed because the emphasis is only on "natural" scarcity. The mafia phenomenon reveals that scarcity can also be institutionally created. This type of scarcity encourages the process of market collectivization and empowers those generating it. The mafia's legal activities establish a system of "waiting lines" and monitored access to goods. Instead of being merely coercive and openly violent, the mafia builds a new lasting order, producing its own rules, and even breeding social legitimacy.  相似文献   
976.
Novel data-driven analyses, appropriate for detecting economic instability in non-stationary time series, are developed using functional principal component analysis (fPCA) and Synchrosqueezing. fPCA is applied in a new way, aggregating multiple financial time series to identify periods of macroeconomic instability. Synchrosqueezing, a technique which generates a time-series’ time-dependent spectral decomposition, is modified to develop a new quantitative measure of local dynamical changes and structural breaks. The merit of this integrated technique is demonstrated by analyzing financial data from 1986 to 2012 that includes equity indices, securities and commodities, and foreign exchange. Both procedures successfully detect key historic periods of instability. Moreover, the results reveal distinctions between periods of long-term gradual change in addition to structural breaks. These tools offer new insights into the analysis of financial instability.  相似文献   
977.
978.
In this article, we show that the recent financial crisis has significantly affected the potential total factor productivity (TFP) of the four largest euro area economies, as well as that of the rest of the euro area. We used a reduced-form equation of TFP, based on an approach recently developed by Cahn and Saint-Guilhem (2010). Our empirical findings show that the permanent impact on potential TFP varies across countries from –3.9 points to –1.3 points in Q2 2012. When these losses are incorporated, TFP gaps develop closely in line with capacity utilization rates (CUR). Moreover, in the case of France, including CUR in our TFP model improves the quasi-real-time reliability of TFP gap estimates.  相似文献   
979.
Abstract

Length-of-stay (LOS) is a key parameter in destination management that determines the number of guest nights relative to arrival numbers, with concomitant repercussions for revenue generation and other performance indicators. This article investigates the development of LOS for 32 destinations in developed and emerging economies as well as Small Islands and Developing States (SIDS). The analysis is based on UNWTO data for 478.5 million international tourist arrivals, or about 40% of the global total in 2015, for the years 1995–2015. Results show considerable differences in LOS between destinations, with a global trend of falling LOS, by 14.8% over the study period. However, in individual destination countries, LOS was found to be increasing. Analyses of LOS trends reveal that these can neither be explained by distance–decay relationships nor business to leisure arrival ratios. Results are discussed with regard for destination management and revenue optimisation, transport infrastructure needs, as well as sector greenhouse gas emissions.  相似文献   
980.
This paper examines the sustainability and the changes experienced by a legal service organisation in the implementation of ISO 9001 in terms of reasons, benefits, and key success factors over an 8-year time interval. This exploratory study employs qualitative methods using a single case study approach. Data were collected through two phases of interviews, 1996 and 2004, with the same quality manager in the legal service organisation. Both interviews were based on a similar set of structured questions derived from the previous studies. Pattern matching was used to analyse and compare the 1996 and the 2004 findings. Three major findings are identified in this study. First, the internal reasons for implementing ISO 9001 are sustained, whereas the external reasons are diminished. Second, the benefits are mainly internal rather than external, and these are sustainable over time. Third, top management commitment and staff involvement are shown to be the critical factors of both the implementation and the maintenance of ISO 9001. The results contribute to a better understanding of the benefits of ISO 9001 as well as the level of commitment required to sustain these benefits. The results also show the learning process taken up by firms in better understanding the value of ISO 9001 implementation over time.  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