全文获取类型
收费全文 | 10361篇 |
免费 | 238篇 |
专业分类
财政金融 | 1976篇 |
工业经济 | 999篇 |
计划管理 | 1695篇 |
经济学 | 2323篇 |
综合类 | 130篇 |
运输经济 | 80篇 |
旅游经济 | 200篇 |
贸易经济 | 1834篇 |
农业经济 | 543篇 |
经济概况 | 815篇 |
信息产业经济 | 2篇 |
邮电经济 | 2篇 |
出版年
2023年 | 53篇 |
2021年 | 48篇 |
2020年 | 120篇 |
2019年 | 155篇 |
2018年 | 167篇 |
2017年 | 200篇 |
2016年 | 204篇 |
2015年 | 137篇 |
2014年 | 207篇 |
2013年 | 1335篇 |
2012年 | 268篇 |
2011年 | 383篇 |
2010年 | 262篇 |
2009年 | 325篇 |
2008年 | 308篇 |
2007年 | 319篇 |
2006年 | 320篇 |
2005年 | 296篇 |
2004年 | 270篇 |
2003年 | 296篇 |
2002年 | 293篇 |
2001年 | 255篇 |
2000年 | 220篇 |
1999年 | 222篇 |
1998年 | 230篇 |
1997年 | 220篇 |
1996年 | 197篇 |
1995年 | 163篇 |
1994年 | 151篇 |
1993年 | 177篇 |
1992年 | 158篇 |
1991年 | 155篇 |
1990年 | 130篇 |
1989年 | 113篇 |
1988年 | 115篇 |
1987年 | 99篇 |
1986年 | 117篇 |
1985年 | 180篇 |
1984年 | 195篇 |
1983年 | 154篇 |
1982年 | 159篇 |
1981年 | 148篇 |
1980年 | 155篇 |
1979年 | 152篇 |
1978年 | 107篇 |
1977年 | 105篇 |
1976年 | 98篇 |
1975年 | 73篇 |
1974年 | 97篇 |
1973年 | 53篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
972.
The encroachment of quasi-retail uses into traditional shopping areas is a significant feature of urban change in Britain. The problem for planners is whether they add or detract from the viability and attractiveness of shopping centres. The paper examines the range of planning policies existing and the assumptions upon which they are based. It is concluded that planners have been hampered by their inability to conduct research necessary to substantiate policy recommendations, and suggest more research is undoubtedly needed to monitor quasi-retailing and evaluating its impact on economic performance and consumer behaviour. 相似文献
973.
974.
975.
The process of product replacement is a surprisingly neglected area of innovation. Its existence as an important corporate activity is known through prior research and anecdotal evidence. This study was designed to shed some light on the replacement activities which are conducted by large companies in Britain and America. The findings revealed a number of different approaches to product replacement and suggested that related activities can be understood (and measured) by seven distinct dimensions. 相似文献
976.
Siddhartha Dalal Dmitry Khodyakov Ramesh Srinivasan Susan Straus John AdamsAuthor vitae 《Technological Forecasting and Social Change》2011,78(8):1426-1444
The complexity of policy decision-making raises the need to elicit opinions from large and heterogeneous groups of stakeholders with broad and diverse sets of expertise. Existing options for elicitation include small face-to-face panels of experts by using the Nominal Group Technique (NGT), large Delphi panels whose members do not interact with each other face-to-face, and crowdsourcing, which involves an open call for input issued to a large community of people. In an attempt to close the gap between the practical needs of policy makers and the methodological challenges associated with eliciting opinions of large, diverse, and distributed groups, we have developed a new online elicitation system and methodology called ExpertLens. By optimizing the direct interactions of NGT with the larger number of Delphi participants and the wisdom of “selected crowds,” our approach is designed to save on the costs associated with traditional expert panels, while increasing accuracy in elicitation by reducing the potential for group process losses that can occur in large, diverse, and non-collocated panels whose members interact via asynchronous online discussion boards. The ExpertLens approach is iterative, does not require participants to develop consensus, and determines what the group “thinks” by statistically analyzing data collected in all rounds of the elicitation. This paper describes the ExpertLens system and methodology, briefly discusses recent ExpertLens trials, provides conceptual arguments for why it is an appropriate model for eliciting expert opinions, illustrates its main components and analytics by using an infrastructure investment example, and discusses a research agenda for testing the underlying tenets of the ExpertLens approach. 相似文献
977.
We show that, in settings where meetings can be multilateral, the allocation rule proposed by Mortensen (1982) can be relatively straightforward to implement: as a local auction conducted by sellers. The implications of using this mechanism in a simple model of the labor market are then explored. We characterize the equilibrium properties of this model, which include wage dispersion, and examine its implied Beveridge curve. A dynamic version of the model is calibrated to the US labor market, and we show that the model can account for observed vacancy rates, given parameters that are chosen to match the average wages and the natural rate of unemployment, although the implied wage dispersion is quite small. Finally, in the limit, as the time between offer rounds in the model approaches zero, the equilibrium approaches the Walrasian competitive equilibrium. 相似文献
978.
Results from the Philippine Quality Improvement Demonstration Study show that a policy that expands insurance coverage improves quality of care, as measured by clinical performance vignettes, among public physicians, and induces a spillover effect that improves quality among private physicians. 相似文献
979.
John E. Bell Chad W. Autry Diane A. Mollenkopf LaDonna M. Thornton 《Journal of Business Logistics》2012,33(2):158-166
World population growth and increased consumption stemming from economic leveling are leading to scarcity of a number of natural resources on a global scale. Scarcity of critical natural resources such as oil, water, food, and precious metals has the potential to greatly impact commercial activity as the twenty‐first century progresses. The challenge of continuing to provide needed goods and services in the face of these constraints falls to supply chain managers, who are ultimately responsible for delivering utility to customers. Unfortunately, there has been almost no research focused on supply chain strategies aimed at mitigating natural resource scarcity’s (NRS) potential effects. The current research positions NRS as a supply chain risk and proposes an NRS typology based on key resource attributes. Supply chain mitigation strategies to counter each resource status are offered, with an overall objective of improving supply chain performance. The study recommends future research aimed at further developing theory and methods for countering NRS based on resource, systems and behavioral theories. In addition, this study has critical implications for practitioners faced with the growing threat of NRS in their supply chains. 相似文献
980.
This article examines both applied and academic research relating to East Asia published during 1994 in terms of its applied relevance and its contributions to existing theory. In recent years the volume of research related to East Asia has expanded rapidly, and this review looks at the hightlights of that literature. Research from each of the functional business areas is examined, both in terms of its current and future contributions. In addition, special attention is paid to the areas of strategic management and entrepreneurship, which had a large amount of important research published during this period. Finally, there is an overall assessment of the impact of this research. 相似文献