全文获取类型
收费全文 | 3437篇 |
免费 | 97篇 |
专业分类
财政金融 | 299篇 |
工业经济 | 141篇 |
计划管理 | 573篇 |
经济学 | 563篇 |
综合类 | 10篇 |
运输经济 | 25篇 |
旅游经济 | 30篇 |
贸易经济 | 468篇 |
农业经济 | 176篇 |
经济概况 | 1249篇 |
出版年
2023年 | 28篇 |
2022年 | 14篇 |
2021年 | 27篇 |
2020年 | 45篇 |
2019年 | 77篇 |
2018年 | 98篇 |
2017年 | 96篇 |
2016年 | 72篇 |
2015年 | 67篇 |
2014年 | 120篇 |
2013年 | 268篇 |
2012年 | 128篇 |
2011年 | 147篇 |
2010年 | 103篇 |
2009年 | 105篇 |
2008年 | 114篇 |
2007年 | 91篇 |
2006年 | 90篇 |
2005年 | 57篇 |
2004年 | 83篇 |
2003年 | 80篇 |
2002年 | 65篇 |
2001年 | 43篇 |
2000年 | 52篇 |
1999年 | 33篇 |
1998年 | 38篇 |
1997年 | 37篇 |
1996年 | 38篇 |
1995年 | 34篇 |
1994年 | 23篇 |
1993年 | 39篇 |
1992年 | 39篇 |
1991年 | 32篇 |
1990年 | 37篇 |
1989年 | 38篇 |
1988年 | 36篇 |
1987年 | 26篇 |
1986年 | 27篇 |
1985年 | 44篇 |
1984年 | 37篇 |
1983年 | 25篇 |
1982年 | 30篇 |
1981年 | 20篇 |
1977年 | 12篇 |
1976年 | 12篇 |
1932年 | 12篇 |
1922年 | 12篇 |
1920年 | 13篇 |
1919年 | 15篇 |
1890年 | 17篇 |
排序方式: 共有3534条查询结果,搜索用时 15 毫秒
961.
Eva A. van Reijmersdal Esther Rozendaal Moniek Buijzen 《Journal of Interactive Marketing》2012,26(1):33-42
The integrated and highly involving nature of advergames has led to criticism and concern among academics and caretakers. It is assumed that children are highly susceptible to persuasion via advergames, but empirical evidence is scarce. Therefore, this study examined the effects of three factors typically associated with advergames: brand prominence, game involvement, and (limited) persuasion knowledge on cognitive and affective responses. An experiment among 7 to 12 year old children (N = 105) showed that brand prominence and game involvement influenced children's responses, while persuasion knowledge did not. Brand prominence led to increased brand recall and recognition, whereas game involvement led to more positive brand attitudes. The effect of game involvement was mediated by game attitude, indicating that children are susceptible to affective mechanisms induced by the game. Crucially, our results demonstrate that brand prominence evokes cognitive responses, while game involvement leads to affective responses. Finally, our study revealed that persuasion knowledge (i.e. knowledge of the commercial source of the game and its persuasive intent) did not influence cognitive or affective responses to the brand or game. This implies that even if children understand the game's commercial and persuasive nature, they do not use this knowledge as a defense against the advergame's effects. This study has important theoretical and practical implications regarding the influence of new marketing techniques on children. 相似文献
962.
This paper presents an empirical analysis of the role of land fragmentation, crop biodiversity and their interplay with farm profitability. Original primary data are drawn from a survey conducted in the Plodiv region of Bulgaria. The econometric results stress the ambiguous role of land fragmentation on farm profitability. On one hand, land fragmentation reduces farm profitability. On the other hand, land fragmentation fosters crop diversification. We also find that crop biodiversity plays a beneficial role in farm profitability. Policies that aim to increase land consolidation and reduce fragmentation may overlook the positive link between diversity and plot heterogeneity. Policies that encourage land consolidation should, therefore, consider the crucial role that this has on other variables such as farm biodiversity. 相似文献
963.
C.Mirjam van Praag 《Small Business Economics》2003,21(4):423-424
Volume Contents
Contents of Volume 21 相似文献964.
Targeting Revisited 总被引:1,自引:0,他引:1
Public spending programs aimed at alleviating poverty can eitherbe broadly targeted at categories ofspending or narrowly targetedat types of people. Each approach has benefits and costs tothe poor. It is often claimed that narrow targeting of the poorwill allow governments to reduce pQverty more effectively andat lower cost. But narrow targeting often has hidden costs,and once these costs are considered, the most finely targetedpolicy may not have any more effect on poverty than a broadlytargeted one. Both approaches also have hidden benefits, althoughless is known about their impact. Targeting can help, but itis not a cure-all. Reducing poverty calls for broadly targetedsocial sector spending combined with narrower targeting of cashand in-kind transfers to spec groups. It is also important forgovernments to experiment with schemes that offer better incentives,to carefully monitor the costs and outcomes, and to be flexibleand pragmatic in their policy responses. 相似文献
965.
van der Heijden K Maccoby M Hama N Lundquist JT Collis DJ Zeithaml C Martin JE Carroll VP Lurie R 《Harvard business review》1993,71(5):39-40, 42-3, 46-51
In "From Value Chain to Value Constellation: Designing Interactive Strategy" (July-August 1993), Richard Normann and Rafael Ramírez argue that successful companies increasingly do not just add value, they reinvent it. The key strategic task is to reconfigure roles and relationships among a constellation of actors--suppliers, business partners, customers--in order to mobilize the creation of value in new forms and by new players. What is so different about this new logic of value? It breaks down the distinction between products and services and combines them into activity-based "offerings" from which customers can create value for themselves. But as potential offerings become more complex, so do the relationships necessary to create them. As a result, a company's strategic task becomes the reconfiguration and integration of its compentencies and customers. Normann and Ramírez provide three illustrations of these new rules of strategy. IKEA has blossomed into the world's largest retailer of home furnishings by redefining the relationships and organizational pratices of the furniture business. Danish pharmacies and their national organization have used the opportunity of health care reform to reconfigure their relationships with customers, doctors, hospitals, drug manufacturers, and with Danish and international health organizations.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
966.
967.
Dr. Peter M. Kort Dr. Paul J. J. M. van Loon Dr. Mikulás Luptácik 《Journal of Economics》1991,54(3):195-225
In this paper we study the optimal environmental policy of the firm for different scenarios dependent on (costs of) production technologies, financing costs, and governmental policy. The governmental instruments to be considered are:
The problem is defined as an optimal control model. In this model, the firm influences its pollution output through the choice of its production technology. Available are a more capital-extensive and dirty activity, a more capital-intensive and clean activity, and an abatement activity that eliminates pollution completely or partially. 相似文献
| -investment grants on cleaner production technologies and on abatement activities; |
| -taxes imposed on environmental pollution. |
968.
Actor-to-actor dissemination of electronic procurement (EP) adoption: an exploration of influencing factors 总被引:1,自引:1,他引:1
Marc R.B. Reunis Erik M. van Raaij Sicco C. Santema 《Journal of Purchasing & Supply Management》2004,10(4-5):201
The merits of electronic procurement (EP) tools have been widely acknowledged. Achieving these benefits remains a challenge, as companies are experiencing difficulties with human adoption during the implementation of such tools. In this article we focus on the intra-organizational spread of EP adoption from one actor to another. Based on exploratory interviews with experts and representatives of large Dutch purchasing organizations, we have identified nine categories of influences on actor-to-actor dissemination: perceived advantage, communication, demonstration, enforcement, training, involvement, risk reduction, reward, and disposition. This study is beneficial to companies engaging in the implementation of EP tools as it provides a portfolio of interventions that can be used to stimulate the spread of adoption. This article addresses a new area in EP research and opens up possibilities for future research in EP implementation. 相似文献
969.
J. C. A. van der Lubbe 《Metrika》1986,33(1):223-245
Summary Indices of heterogeneity and homogeneity are used in biology and ecology as well as in other fields of scientific research, e.g. economics, genetics, antropology, sociology. With respect to these indices, reference is made frequently to information theory. In this paper it is shown that especially recent developments in statistical information theory can contribute to the measurement of heterogeneity and homogeneity. They can lead to a more fundamental and unifying approach and bring together both heterogeneity and homogeneity indices in one axiomatically founded theory. Therefore a generalized heterogeneity index is introduced axiomatically. Algebraic, analytic and geometrical properties are investigated. Special attention is paid to the interpretation of these properties and to the choices of the values of the parameters for practical applications. Based on this generalized heterogeneity index, it is possible to given an axiomatic characterization for a class of homogeneity indices. The properties of this class are the reverse of those of the heterogeneity index. Finally, some potential measures for heterogeneity or homogeneity change are discussed.Presently with Delft University of Technology, Department of Electrical Engineering, Information Theory Group, P.O. Box 5031, 2600 GA Delft, The Netherlands. 相似文献
970.