全文获取类型
收费全文 | 15369篇 |
免费 | 442篇 |
专业分类
财政金融 | 2518篇 |
工业经济 | 1011篇 |
计划管理 | 2669篇 |
经济学 | 3928篇 |
综合类 | 169篇 |
运输经济 | 150篇 |
旅游经济 | 200篇 |
贸易经济 | 2618篇 |
农业经济 | 648篇 |
经济概况 | 1836篇 |
邮电经济 | 64篇 |
出版年
2023年 | 131篇 |
2021年 | 135篇 |
2020年 | 248篇 |
2019年 | 328篇 |
2018年 | 486篇 |
2017年 | 588篇 |
2016年 | 512篇 |
2015年 | 279篇 |
2014年 | 445篇 |
2013年 | 1764篇 |
2012年 | 537篇 |
2011年 | 567篇 |
2010年 | 492篇 |
2009年 | 538篇 |
2008年 | 431篇 |
2007年 | 375篇 |
2006年 | 333篇 |
2005年 | 345篇 |
2004年 | 265篇 |
2003年 | 315篇 |
2002年 | 271篇 |
2001年 | 252篇 |
2000年 | 258篇 |
1999年 | 251篇 |
1998年 | 241篇 |
1997年 | 236篇 |
1996年 | 215篇 |
1995年 | 176篇 |
1994年 | 183篇 |
1993年 | 208篇 |
1992年 | 218篇 |
1991年 | 207篇 |
1990年 | 204篇 |
1989年 | 179篇 |
1988年 | 168篇 |
1987年 | 164篇 |
1986年 | 180篇 |
1985年 | 219篇 |
1984年 | 205篇 |
1983年 | 191篇 |
1982年 | 179篇 |
1981年 | 189篇 |
1980年 | 171篇 |
1979年 | 188篇 |
1978年 | 152篇 |
1977年 | 140篇 |
1976年 | 130篇 |
1975年 | 94篇 |
1974年 | 106篇 |
1973年 | 102篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
Dennis P. McCann 《Journal of Business Ethics》1986,5(6):445-451
The paper is a response to Richard De George's essay, Theological Ethics and Business Ethics. It defends the possibility of theologically oriented approaches to business ethics by pointing out certain deficiencies in business ethics narrowly based on the premisses of analytic moral philosophy. In particular it argues, in a manner consistent with Alasdair MacIntyre's After Virtue (1981), that such a program of business ethics is insufficiently critical of its own roots in the social fiction of bureaucratic rationality. After showing how this ideology governs De George's negative judgments on theological approaches to business ethics, the author outlines a program of critical reflection that would draw from the intellectual traditions of both theology and philosophy in order to facilitate a dialogue in business ethics that no longer is captive in the Iron Cage of bureaucratic rationality.
Dennis P. McCann is an Associate Professor of Religious Studies at De Paul University. He has served on the faculties of Reed College and Lewis and Clark College. He is the author of Christian Realism and Liberation Theology (1981) and a co-author of Polity and Praxis: A Program for American Practical Theology (1985). 相似文献
83.
We examine the two traditions of content analysis: the first in which one substitutes words of a text with categories, and the second in which one looks for clusters of words that may refer to a theme. In the first tradition, preexisting dictionary categories give meaning to the words; in the second, meaning comes after the fact. Preexisting dictionary categories (the substitution model) are calibrated instruments applied within experimental designs that leave no space for doubt; meanwhile, the ability of the correlational model to conjure up complex themes from fragments of a text yields no unique solution. These differences have bearings on the production of new social knowledge. We expound on the epistemological foundations of the two traditions of interpretation and draw from them decision rules upon which one may rely for choosing among appropriate content-analytic tactics. Two reasons make this essay timely and critical: (1) the increasing variety of new content-analyticsoftware for particular purposes and (2) the almost exclusive focusing on software and technology at the expense of adjusting the choice of the software to the nature of the text. Two studies, one in historiometry, the other in autobiography, illustrate the liabilities and benefits of the two models of content analysis. 相似文献
84.
Bilodeau Daniel Crémieux Pierre-Yves Jaumard Brigitte Ouellette Pierre Vovor Tsévi 《Journal of Productivity Analysis》2004,21(2):183-199
This research proposes an approach to measure hospital performance based on a generalization of Banker and Morey (1986) and Førsund (1996). This approach considers quasi-fixed inputs explicitly, calculates their implicit cost, and quantifies returns to scale. The performance measure is decomposed into allocative and technical inefficiencies. Based on a very complete data set of Québec hospitals, we find that significant inefficiencies of up to 17% ($700 CAN million) could have been saved through improved performance. Postestimation analyses that include qualitative measures of care suggest that differences in performance are attributable to differences in management or unobservable quality of care rather than patient case mix. 相似文献
85.
In this paper we present an effective algorithm for the construction and the identification of two-level nonisomorphic orthogonal
arrays. Using this algorithm, we identify and list a full catalogue of nonisomorphic orthogonal arrays with parameters OA(24,7,2,t), OA(28,6,2,t) and OA(32,6,2,t), t ≥ 2. Some statistical properties of these designs are also considered. 相似文献
86.
This paper presents an analytical approach to the tactical question: ‘What level of enforcement over time allows one to eliminate a street market for illicit drugs while expanding the least possible total effort?’ The analysis is done in the context of Caulkins' model [6] which predicts the rate of change of dealers as a function of enforcement level and several market parameters. Our analysis suggests that the simple strategy of using the maximum available enforcement intensity until the market has been eliminated minimizes the total enforcement effort required. 相似文献
87.
Airports in the US air transport network have become increasingly congested, leading to delays for business travelers and freight shipments. Since disruptions in one part of the network exacerbate problems throughout the system, airport infrastructure expansions to enhance air traffic flows confer travel-time savings and reliability benefits, and thus increased worker productivity and shipping efficiency for manufacturing firms. We evaluate such spillovers, and find that higher own-state airport infrastructure implies lower manufacturing costs from both labor- and materials-savings. Airport expansion in connected states has a comparable effect for states with hub airports, and an even greater impact for other states. 相似文献
88.
THE INFLUENCE OF ORGANIZATION STRUCTURE ON THE UTILITY OF AN ENTREPRENEURIAL TOP MANAGEMENT STYLE 总被引:11,自引:0,他引:11
This study examined the influence of organization structure on the relationship between top management's entrepreneurial orientation and financial performance. Moderated regression analysis was used to analyse data collected from 80 business organizations. the findings suggest that an entrepreneurial top management style has a positive effect on the performance of organically-structured firms and a negative effect on the performance of mechanistically-structured firms. 相似文献
89.
Zusammenfassung Es wird eine optimale Strategie im Sinne des minimalen erwarteten Verlustes für die beiden Entscheidungeny>y
o undyy
o aufgrund der Messungen einer mitY positiv korrelierten, einfacher und/oder billiger zugänglichen ZufallsvariablenX abgeleitet. Dabei wird angenommen, daßX undY nach einer bivariaten Normalverteilung mit bekannten Parametern verteilt sind und die Entscheidungyy
o getroffen wird, wennx größer ist als ein zu bestimmendesx
o, und die Entscheidungy>y
o, wennx gleich oder kleiner als diesesx
o ist. Für die Bestimmung des optimalenx
o werden zunächst die Kosten für die beiden Fehlentscheidungen jeweils als konstant vorausgesetzt, in einem weiteren Ansatz wird jedoch für die Mißklassifikationyy
o eine mity exponentiell wachsende Risikofunktion angenommen. Um die relative Häufigkeit der zu erwartenden Fehlklassifikationen abschätzen zu können, wird schließlich die bedingte WahrscheinlichkeitP(x>x
o,y) errechnet.
Summary An optimal strategy, with minimum expected risk, for the decisionsy>y o oryy o is constructed on the basis of the measurement of a variableX, which is positively correlated withY and can be measured more easily and/or with smaller expense. A bivariate normal distribution with known parameters is assumed forX andY. For the observationsx a limitx o is aimed at, so that the decisionsy>y o oryy o are taken ifx>x orxx o respectively. Optimal values ofx o are first calculated under the assumption of constant losses for the two misclassifications (x>x o ifyy o andxx o ify>y o). In a further approach the loss for a wrong decisionyy o is assumed to increase exponentially withy. Finally the conditional probabilityP (x>x o\y) is calculated to get an assessment of the relative frequencies of wrong decisions to be expected.相似文献
90.
The efficiency of decomposition vs direct solution with implications for the question of decentralized or centralized planning 总被引:1,自引:0,他引:1
K. P. Wong 《Economics of Planning》1973,13(3):199-209
Conclusion The investigation provides overwhelming evidence that decomposition tends to become increasingly more efficient than direct solution as the number of subproblems becomes greater.Further investigation would be required to obtain a comparable picture of the behaviour of decomposition with respect to an increasing number of variables in the master problem as their range of variation in the present study is rather restricted.It is gratefully acknowledged: that in implementing the decompositional procedure on the computer I have benefitted from Mr. A. C. McKay's advice on matters relating to the computer programmes; also that I enjoyed the pleasant and friendly co-operation of the staff of the computer Centre, University of Birmingham, without which the difficulties involved in carrying out the present task would have been compounded manifold; that Dr. C.-L. Sandblom carefully studied this paper and suggested a number of valuable improvements. Finally, I should like to thank Professor Kronsjö for the encouragement that he has given to me in executing this project and to the research council which made this investigation possible. 相似文献