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   196篇
  免费   4篇
财政金融   59篇
工业经济   22篇
计划管理   16篇
经济学   43篇
综合类   3篇
运输经济   3篇
旅游经济   4篇
贸易经济   31篇
农业经济   17篇
经济概况   2篇
  2023年   1篇
  2021年   2篇
  2020年   1篇
  2019年   8篇
  2018年   6篇
  2017年   7篇
  2016年   13篇
  2015年   7篇
  2014年   11篇
  2013年   34篇
  2012年   10篇
  2011年   10篇
  2010年   7篇
  2009年   9篇
  2008年   8篇
  2007年   6篇
  2006年   9篇
  2005年   2篇
  2004年   7篇
  2003年   3篇
  2002年   6篇
  2001年   2篇
  2000年   6篇
  1999年   3篇
  1997年   4篇
  1996年   3篇
  1995年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1989年   2篇
  1986年   1篇
  1983年   3篇
  1981年   1篇
  1979年   1篇
  1977年   1篇
  1975年   1篇
  1973年   1篇
排序方式: 共有200条查询结果,搜索用时 0 毫秒
1.
This article utilizes a pooled time-series and cross-section sample of banks to investigate the causes of the credit contraction which occurred during the 1990–1991 period. The methodology involves an econometric model which recognizes that banks' decisions regarding lending and capital are simultaneously determined. Bank lending behavior is modeled as being determined by a combination of economic conditions, loan quality problems, and capital growth. The results of the econometric tests are consistent with a multiplicity of factors contributing to the reduction in lending. The evidence suggests that the credit contraction of 1990–1991 cannot be explained solely as a result of recession and low capital levels. Changes in the supervisory climate and in bank capital regulation, perhaps coupled with independent changes in bankers' assessments of the risk climate, were likely responsible for a substantial part of the credit contraction.  相似文献   
2.
Pharmacy costs continue to rise, as does the number of senior citizens. One of the ways of containing costs may be the pharmacy discount drug card program, for both seniors and the general population.  相似文献   
3.
This article explores the importance of image to the Atlanta Olympic Games of 1996. It suggests that the event must be seen as an example of the use of the propagation of selected images designed to boost the standing of the city in an increasingly competitive interurban environment. The intersection of major sporting spectacles, big business and vastly increased television coverage provides an important new medium through which boosterists can put their city on the world map. However, as the Atlanta case reveals, the ‘semiotics of the successful city‘ involves a highly ideological construction which often presents urban areas as conflict‐free zones. In Atlanta, potentially negative images were removed both physically and symbolically from the urban landscape, while the actual experience of the Games suggested that the city had some way to go in material terms to match its often hyperbolic self‐promotion. The article suggests that the staging of events such as the Olympics is a necessarily high‐risk venture for cities, one that, as in the case of Atlanta, may not have been ultimately worth the effort. Cet article examine l'importance de l'image dans le cadre des Jeux Olympiques d'Atlanta de 1996. Il propose de considérer l'événement comme un exemple de la diffusion d'images sélectionnées, conçues et utilisées afin de promouvoir la réputation de la ville dans un contexte interurbain de plus en plus concurrentiel. L'intersection entre des spectacles sportifs exceptionnels, de grandes entreprises et une couverture télévisuelle considérablement étendue constitue un moyen novateur grâce auquel les promoteurs de cette dynamique peuvent positionner leur ville sur la carte du monde. Cependant, comme le montre le cas d'Atlanta, la ‘sémiotique d'une ville gagnante’ implique une construction idéologique très forte qui présente souvent les zones urbaines comme des espaces non conflictuels. À Atlanta, les images à potentiel négatif ont étééliminées à la fois physiquement et symboliquement du paysage urbain, tandis que les Jeux eux‐mêmes laissaient à penser que la ville devait progresser sur le plan matériel si elle voulait correspondre à son auto‐promotion souvent hyperbolique. L'article suggère que la mise en scène d'événements tels que les Jeux Olympiques est une opération nécessairement très risquée pour des villes, opération qui, à l'instar de l'expérience d'Atlanta, peut finalement ne pas justifier les efforts réalisés.  相似文献   
4.
5.
The classical rational expectations model of commodity markets implies that expected spot price risk is an explanatory variable in spot price regressions; and also that inventory carryover, which is reduced by a larger price variance, creates autoregressive conditional heteroscedastic processes in spot prices. In order to falsify/verify this theory, it has typically been assumed that the square root of the conditional variance of spot prices, a proxy for spot price risk, enters the conditional mean function of spot prices. Based on this simple representation, a typical but counter intuitive outcome has been that spot price risk has an insignificant impact on spot prices, see, e.g., Beck (Beck, S., 1993. A Rational Expectations Model of Time Varying Risk Premia in Commodities Futures Markets: Theory and Evidence. International Economic Review 34, 149–168, Beck, S., 2001. Autoregressive Conditional Heteroskedasticity in Commodity Spot Prices. Journal of Applied Econometrics 16, 115–132). In this paper, we propose an alternative functional relationship (from GARCH(1,1) to GARCH(1,1)-AR(m)) between spot price risk and spot prices that is fully supported by the classical rational expectations model, and based on this new representation we are able to provide stronger empirical support for Muth's rational expectation theory.  相似文献   
6.
    
When a liquid mixture, such as an aqueous formaldehyde solution, is released into the environment, the rate of evaporation into the atmosphere depends strongly on chemical reactions that regulate the evolution of formaldehyde vapors. Most of the consequence modeling methods and models currently used in the industry usually ignore any reaction phenomena. This article describes a dynamic model developed using the Aspen® Custom Modeling (ACM) tool kit. In the case of formaldehyde solutions, the thermodynamics and reaction kinetics of a mixture of formaldehyde (HCHO), water and methanol (CH3OH) are computed from models available in the open literature. The liquid-phase, reversible, chemical reactions between water and formaldehyde, as well as methanol and formaldehyde, form oligomers—most of which are nonvolatile. The mass transfer and heat transfer coefficients between the surface of the spill and the atmosphere are computed by established correlations for flow over a semi-infinite flat surface. For a release scenario, the model computes the time-varying liquid and vapor phase compositions and conditions. It also computes the required vaporization rates for HCHO and CH3OH resulting from, for example, a 54 wt% formaldehyde solution spill onto a relatively dry surface of a fixed area under specific meteorological conditions. The article presents details regarding the formaldehyde spill modeling methodology, with examples. © 2018 American Institute of Chemical Engineers Process Process Saf Prog 38: 61–70, 2019  相似文献   
7.
    
In this paper, a survey of more than 1600 firms in the five largest city regions of Norway is described in order to examine how a firm's innovative capacity is affected by three types of factors: factors related to the manager, the structure of the firm and the broader geographical location. By combining perspectives from the fields of management and economic geography in a logistic regression analysis, we find that the two key drivers of firm-level innovation in Norway are the presence of open-minded managers and evidence of collaboration with international partners. Moreover, these two factors are mutually reinforcing, as firms with open-minded managers also tend to engage more with international partners and vice versa.  相似文献   
8.
This paper describes and develops a model for calculating location-based strategic values of foreclosed properties considered for acquisition and redevelopment by community development corporations (CDCs). A property’s strategic value refers to its proximity to site-specific neighborhood amenities and disamenities (e.g. schools, public transit, distressed properties), given the relative importance of that proximity to CDC organizational and community objectives. We operationalize the concept of strategic value, and apply this concept to a salient public sector decision problem. Using data and value assessments from a CDC engaged in foreclosed housing redevelopment, we compute measures of strategic value for a set of acquisition candidates. We show that strategic values can differ in systematic ways depending on the types of amenities and disamenities identified as relevant for CDC acquisition decisions, the relative importance assigned to those amenities and disamenities, and the utility maximization objectives of the CDC. We conclude by proposing a multi-criteria decision model for foreclosed housing acquisition and redevelopment which incorporates a theory of residential housing impacts for which strategic value measures are a special case.  相似文献   
9.
Drawing on reversal theory (Apter, 2007), the current research proposes that internet users' metamotivational state (telic vs. paratelic) determines advertising interactivity's effectiveness. An online field experiment involving 141 Facebook and Twitter users tests this proposition. Research findings support telic state consumers form more positive attitudes toward a low-level interactive ad, whereas paratelic state consumers form more positive attitudes toward a high-level interactive ad. Further, this research shows that an arousal seeking tendency mediates the metamotivational state's impact on ad attitude.  相似文献   
10.
    
The drivers of globalization are changing how, where, and when international business (IB) is being taught, and increasing student diversity. Concomitantly, education is becoming an important contributor to GDP in developed economies. Today, the same course may be taught at home to domestic and in-bound international students, in host countries, online, and through blended learning techniques. The increasing variety of modes of delivery raises an important question, however—how to deliver the same material in different contexts and achieve the same learning outcomes. This article examines the changing face of IB education and presents a case study on how this question has been answered at one Australian university.  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