全文获取类型
收费全文 | 1005篇 |
免费 | 37篇 |
专业分类
财政金融 | 236篇 |
工业经济 | 96篇 |
计划管理 | 205篇 |
经济学 | 173篇 |
综合类 | 11篇 |
运输经济 | 6篇 |
旅游经济 | 10篇 |
贸易经济 | 196篇 |
农业经济 | 25篇 |
经济概况 | 77篇 |
邮电经济 | 7篇 |
出版年
2021年 | 9篇 |
2020年 | 15篇 |
2019年 | 25篇 |
2018年 | 26篇 |
2017年 | 21篇 |
2016年 | 19篇 |
2015年 | 15篇 |
2014年 | 26篇 |
2013年 | 158篇 |
2012年 | 33篇 |
2011年 | 36篇 |
2010年 | 41篇 |
2009年 | 37篇 |
2008年 | 25篇 |
2007年 | 36篇 |
2006年 | 30篇 |
2005年 | 27篇 |
2004年 | 28篇 |
2003年 | 31篇 |
2002年 | 27篇 |
2001年 | 23篇 |
2000年 | 26篇 |
1999年 | 24篇 |
1998年 | 22篇 |
1997年 | 16篇 |
1996年 | 14篇 |
1995年 | 18篇 |
1994年 | 14篇 |
1993年 | 16篇 |
1992年 | 13篇 |
1991年 | 13篇 |
1990年 | 9篇 |
1989年 | 7篇 |
1988年 | 9篇 |
1987年 | 10篇 |
1986年 | 11篇 |
1985年 | 11篇 |
1984年 | 13篇 |
1983年 | 16篇 |
1982年 | 7篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1978年 | 8篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1974年 | 4篇 |
1973年 | 6篇 |
1971年 | 5篇 |
1970年 | 5篇 |
1967年 | 6篇 |
排序方式: 共有1042条查询结果,搜索用时 15 毫秒
1.
Farasat A. S. Bokhari Franco Mariuzzo Arnold Polanski 《Journal of Economics & Management Strategy》2020,29(3):516-542
During patent litigation, pay‐for‐delay (P4D) deals involve a payment from a patent holder of a branded drug to a generic drug manufacturer to delay entry and withdraw the patent challenge. In return for staying out of the market, the generic firm receives a payment, and/or an authorized licensed entry at a later date, but before the patent expiration. We examine why such deals are stable when there are multiple potential entrants. We combine the first‐mover advantage for the first generic with the ability of the branded manufacturer to launch an authorized generic (AG) to show when P4D deals are an equilibrium outcome. We further show that limiting a branded firm's ability to launch an AG before entry by a successful challenger will deter such deals. However, removing exclusivity period for the first generic challenger will not. 相似文献
2.
In this progress report, we first indicate the origins and early development of the Marshallian macroeconomic model (MMM) and briefly review some of our past empirical forecasting experiments with the model. Then we present recently developed one-sector, two-sector and n-sector models of an economy that can be employed to explain past experience, predict future outcomes and analyze policy problems. The results of simulation experiments with various versions of the model are provided to illustrate some of its dynamic properties that include “chaotic” features. Last, we present comments on planned future work with the model. 相似文献
3.
4.
The Effect of Concept Formulation on Concept Test Scores 总被引:1,自引:0,他引:1
While concept testing is a mainstay of the new product development process, there is little empirical evidence on the variation in consumer responses due to alternative concept formulations, particularly for those tests undertaken early in the product development process. The present study addressed this gap in the literature by using a split sample mail survey to compare stripped, embellished, and visual concept formulations for five heterogeneous product concepts. It was found that respondents' answers to attitude and purchase intention questions showed only minor variation with different formulations of the concept test statement. It also was found that the ranking of the concepts showed no substantial changes across the different formulations. Therefore, the type of concept statement formulation may not be that important, at least for early ranking tasks performed before experiential prototypes are available. Early concept tests therefore may be carried out using stripped concept statements. This may reduce costs, allowing organizations to undertake early concept testing more frequently across a wider range of products. 相似文献
5.
When the indemnity schedule is contingent on the farmer's price and individual yield, an optimal crop revenue insurance contract depends only on the farmer's gross revenue. However, this design is not efficient if, as is the case with available contracts, the coverage function is based on imperfect estimators of individual yield and/or price. The producer's degree of prudence and the extent of basis risks have important influences on the optimal indemnity schedule. In this broader context, optimal protection is not provided by available U.S. crop insurance contracts and may include combinations of revenue insurance, yield insurance, futures, and options contracts. 相似文献
6.
This paper examines the restructuring of the former Soviet economy provoked by the break-up of the USSR and the creation of the Commonwealth of Independent States. Particular attention is devoted to the changes taking place in the former All-Union enterprises that have now essentially become new multinationals. The pressures influencing the two parallel developments of internalization and divestment are examined and illustrated using two case studies. © 1993 John Wiley & Sons, Inc. 相似文献
7.
Sophie Manigart Veroniek Collewaert Mike Wright Sarika Pruthi Andy Lockett Hans Bruining Ulrich Hommel Hans Landstrom 《The International Entrepreneurship and Management Journal》2007,3(1):109-125
We examine the neglected area of internationalisation by VCs. Using a representative sample of 195 VCs, we show that the decision
of a European VC firm to invest internationally is driven by its human resources. Having more VC executives in general and
more VC executives with previous international experience in specific, results in a higher probability of investing internationally.
In contrast, more VC executives with experience in the VC industry or with an engineering background lead to a higher probability
of remaining domestic. 相似文献
8.
Rosa M. Barriga Eugenia P. Vanek Katherine H. Mann Arnold Reisman Lawrence T. Kent 《Socio》1990,24(4):273-283
The simulation problem is one of the most commonly used formats in computer-assisted instruction (CAI). In medical education, a patient simulation problem is known as a patient management problem (PMP). A number of computerized PMP systems are currently available. However, to date, there is no record of PMP systems having been developed using artificial intelligence. This is noteworthy since artificial intelligence techniques could help in the generation of more effective and intelligent instructional systems.
This paper analyzes and evaluates existing instructional simulation software in clinical medicine in terms of effective educational design attributes. Components of effective PMP systems thus identified are incorporated into a computerized instructional system which uses artificial intelligence techniques for teaching problem-solving and diagnostic skills to undergraduate medical students. 相似文献
9.
Peter Wright Mark Kroll Peng Chan Karin Hamel 《Journal of the Academy of Marketing Science》1991,19(3):245-254
Competing theories on internal orientation versus external orientation are examined. The relevant theories are amalgamated
and condensed into a number of competing propositions that are empirically tested. The findings suggest that the internally
oriented businesses as well as the externally oriented businesses underperform the efficient, marketing oriented businesses. 相似文献
10.
Summary. Simple search models have equilibria where some agents accept money and others do not. We argue such equilibria should not be taken seriously. This is unfortunate if one wants a model with partial acceptability. We introduce heterogeneous agents and show partial acceptability arises naturally and robustly. There can be multiple equilibria with different degrees of acceptability. Given the type of heterogeneity we allow, the model is simple: equilibria reduce to fixed points in [0,1]. We show that with other forms of heterogeneity equilibria are fixed points in set space, and there is no method to reduce this to a problem in R1.Received: 4 September 2002, Revised: 23 September 2002JEL Classification Numbers:
C78, E40.A. Shevchenko, R. Wright: We thank seminar participants at the Federal Reserve Bank of Cleveland, Indiana University, Purdue University, University of Toronto, the 2002 Midwest Macroeconomics Conference at Vanderbilt University, and the 2001 Conference on Economic Dynamics at the University of Essex. The National Science Foundation and the Federal Reserve Bank of Cleveland provided financial support. Braz Ministerio de Camargo and Gabriel Camera provided some helpful suggestions. Correspondence to: R. Wright 相似文献