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   442篇
  免费   25篇
财政金融   94篇
工业经济   40篇
计划管理   66篇
经济学   81篇
综合类   13篇
运输经济   7篇
旅游经济   27篇
贸易经济   94篇
农业经济   19篇
经济概况   25篇
邮电经济   1篇
  2022年   3篇
  2021年   3篇
  2020年   7篇
  2019年   10篇
  2018年   14篇
  2017年   19篇
  2016年   17篇
  2015年   9篇
  2014年   22篇
  2013年   60篇
  2012年   22篇
  2011年   25篇
  2010年   17篇
  2009年   25篇
  2008年   17篇
  2007年   13篇
  2006年   11篇
  2005年   6篇
  2004年   8篇
  2003年   14篇
  2002年   8篇
  2001年   8篇
  2000年   10篇
  1999年   5篇
  1998年   6篇
  1997年   9篇
  1996年   4篇
  1995年   7篇
  1994年   2篇
  1993年   2篇
  1992年   4篇
  1991年   5篇
  1990年   2篇
  1989年   8篇
  1988年   3篇
  1987年   3篇
  1984年   7篇
  1983年   6篇
  1982年   6篇
  1981年   6篇
  1980年   4篇
  1978年   4篇
  1977年   4篇
  1976年   7篇
  1974年   6篇
  1970年   2篇
  1969年   1篇
  1968年   1篇
  1960年   1篇
  1934年   1篇
排序方式: 共有467条查询结果,搜索用时 31 毫秒
81.
Shortly after Hurricane Katrina's landfall in August 2005 and the reports of rampant looting of businesses in the city, we became curious about the extent of Katrina looting as compared to that after other major storms that hit New Orleans in 1947 and in 1965. Using burglary as a proxy variable for looting, we discovered that the burglary rates in the month before and the month after Katrina were significantly higher than those before and after the other two hurricanes. We then investigated the socioeconomic conditions in the city in an effort to explain these numbers. Population loss and high unemployment rates, coupled with a decline in high‐paying manufacturing jobs and an increase in low‐wage food and hotel service jobs generated severe economic inequality in the city that exacerbated the situation created by Katrina. Our current analysis of the impact of public school desegregation and the oil bust suggests that both events contributed to population loss and the increase in low‐wage jobs prior to the storm. We believe that this type of research can assist in the recovery of New Orleans by providing an understanding of the city's pre‐Katrina social and economic conditions and make clearer which post‐Katrina changes are desirable.  相似文献   
82.
Structural breaks have been suggested by several economists as a possible explanation for the MeeseRogoff puzzle, in the sense that an exchange rate model can outperform the random walk in terms of the out-of-sample forecasting error if the period under investigation is free of structural breaks. The results indicate that structural breaks cannot explain the inability of the flexible price monetary model to outperform the random walk. The only plausible explanation for the MeeseRogoff puzzle is that forecasting accuracy is traditionally assessed by magnitude-only measures. When forecasting accuracy is assessed by alternative measures that do not rely exclusively on the magnitude of error, the monetary model can outperform the random walk regardless of the presence or otherwise of structural breaks.  相似文献   
83.
84.
Management of swine waste generated in the United States is a challenging problem facing engineers, farmers, scientists, regulators, and policy-makers. Technologies for processing and storing swine waste have not been fully developed and refined in a manner acceptable to the public and environmental regulators. The primary concerns with improperly disposed swine waste are the effects on human and livestock health, surface and groundwater quality, air quality, and conservation of nitrogen fertilizers (Hagenstein 2003 Hagenstein, P. R. 2003. Air Emissions from Animal Feeding Operations: Current Knowledge, Future Needs, Washington, D. C.: National Research Council, National Academy Press.  [Google Scholar]).

The purpose of this study is to demonstrate the concept of target costing by applying it to a very specific example: the production of biomethanol from swine manure. This study summarizes the analyses that outline a design and calculate a preliminary cost estimate for a proposed system for producing biomethanol from swine manure (initial process). In this study the target costing process is demonstrated with calculation of a target cost. This article also demonstrates an application of value engineering as a systematic, interdisciplinary examination of factors affecting the cost of a product so as to find means to fulfill the product's specified purpose at the required standards of quality and reliability and at an acceptable cost.

The article is organized as follows. First, the purpose of applying target costing methodology to the development of marketable by-products from swine manure is outlined. Next, target cost is calculated for biomethanol made from swine manure based on current methanol prices and currently available subsidies for biomethanol made from swine manure. A system for producing biomethanol from swine manure is described. The current cost is calculated for producing biomethanol. Concepts of value engineering are employed to reduce a significant cost component of the initial process resulting in Process II. Finally, value engineering is employed the second time to further reduce the cost of Process II yielding Process III.  相似文献   
85.
This research examined the relative importance of indicators and standards of quality at three mountain summits in the Northern Forest. The three summits ranged from low to high levels of use, development, and management. Computer-generated photographs were used to present a range of resource, social, and managerial conditions in a stated choice survey. Results suggest that visitors prefer minimal resource impact, few other people, and low intensity management. However, when faced with tradeoffs, respondents accept more intensive management to help ensure resource protection. Findings also suggest that a range of recreation opportunities should be provided at mountain summits in the Northern Forest.  相似文献   
86.
Abstract

This article explores relationships among hunting goals, hunting strategies, and harvest success and attempts to assess if and how the relationships between harvest and nonharvest goals and harvest outcomes change in the presence of selected intervening hunting strategy variables. Log‐linear analysis examines the relationship among harvest outcome, hunting goals, and hunting strategies. Hunting strategies were found helpful in explaining the patterns of harvest outcome, suggesting that how a person hunts may be as important as why they hunt. Hunting strategy is seen as a viable concept for use in future investigations.  相似文献   
87.
The ‘right to request’ policy encouraged and supported National Health Service (NHS) community health staff in England to ‘spin out’ services into independent social enterprises. This article considers the processes and outputs of the initiative and reflects on the likelihood of positive outcomes for patients being achieved. It highlights lessons for future programmes seeking to transfer services out of public ownership.  相似文献   
88.
This Rejoinder responds to criticisms made by Simon Hussain (2011) Hussain, S. 2011. Food for thought on the ABS Academic Journal Quality Guide. Accounting Education: an international journal, 20(6), : 545559. [Taylor & Francis Online] [Google Scholar] about the construction and operation of the Association of Business Schools' (ABS) Academic Journal Quality Guide. In this paper the broad purposes of journal lists and guides are outlined before an account is given of the long history and multiple forms of these lists, particularly in the field of Accounting. Having described the main features of different types of journal list, the advantages and benefits of the approach adopted in the compilation of the ABS Journal Quality Guide is outlined. The paper then ends by noting that one of the copy-editing mistakes identified by Dr Hussain has been rectified, but the remaining concerns about the rating of accounting education and accounting history journals reflect the absence of these titles from journal citation reports and international journal lists. Furthermore, the lower rating of Accounting & Finance research in the RAE2008 in comparison with Business & Management Studies research in the same year and Accounting & Finance research in 2001, has more to do with the way in which the Accounting & Finance Panel calibrated and normalized its judgements than with the ratings contained within the ABS Guide.  相似文献   
89.
Abstract

Social enterprises are being promoted as responsive and innovative way to deliver public services. As part of this promotion, these organizations are being required to demonstrate the social and economic value they generate. Social return on investment (SROI) is a performance measurement tool currently being encouraged to capture this impact. This paper draws on survey and interview data to analyse how SROI is used and understood in health and social care settings. It indicates that despite being accepted as an internationally recognized measurement tool for social enterprise, SROI is underused and undervalued due to practical and ideological barriers.  相似文献   
90.
Smallholder farmers in developing countries encounter multiple barriers in access to inputs and technology, which prevent them from reaping the benefits from market participation. Women farmers face additional constraints due to gender norms that further limit their engagement in productive activities. While collective action has been shown to improve access to markets and economic outcomes for farmers overall, the evidence on the effects of cooperative membership for women smallholders remains limited. We investigate empirically the economic benefits of collective action for women farmers in the honey sector in Ethiopia. Relying on a rich data set on women honey producers, both cooperative members and non‐members, we evaluate the effects of belonging to a cooperative on three outcome variables through coarsened exact matching and regression analysis. Our results indicate that cooperative membership significantly increases the market price and the production quantity and, while the average effect on the share of product marketed is statistically insignificant, significant differences emerge for women with given characteristics. These results are shown to be robust to a number of tests that address biases from selection on observables and unobservables. An analysis of the heterogeneous effects of household membership in multiple groups finds that membership of self‐help groups or farmer associations amplifies the positive outcomes from belonging to a formal cooperative. Finally, qualitative findings derived from the same communities indicate self‐reported improvements in agency and self‐esteem among women members, thus reinforcing the importance of the quantitative findings.  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