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   13582篇
  免费   370篇
  国内免费   13篇
财政金融   2397篇
工业经济   1055篇
计划管理   2263篇
经济学   2905篇
综合类   300篇
运输经济   88篇
旅游经济   276篇
贸易经济   2460篇
农业经济   738篇
经济概况   1460篇
邮电经济   23篇
  2021年   84篇
  2020年   151篇
  2019年   218篇
  2018年   278篇
  2017年   312篇
  2016年   291篇
  2015年   204篇
  2014年   318篇
  2013年   1295篇
  2012年   358篇
  2011年   380篇
  2010年   368篇
  2009年   395篇
  2008年   442篇
  2007年   418篇
  2006年   340篇
  2005年   332篇
  2004年   293篇
  2003年   301篇
  2002年   279篇
  2001年   271篇
  2000年   276篇
  1999年   248篇
  1998年   256篇
  1997年   260篇
  1996年   260篇
  1995年   236篇
  1994年   226篇
  1993年   248篇
  1992年   235篇
  1991年   227篇
  1990年   213篇
  1989年   184篇
  1988年   143篇
  1987年   178篇
  1986年   176篇
  1985年   259篇
  1984年   270篇
  1983年   262篇
  1982年   233篇
  1981年   234篇
  1980年   198篇
  1979年   210篇
  1978年   151篇
  1977年   157篇
  1976年   135篇
  1975年   109篇
  1974年   102篇
  1973年   93篇
  1972年   66篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
991.
The complex rapidly changing environment faced by tourism organization officials makes tourism planning extremely difficult. Goal programming can aid the tourism planner in appraising the goal attainment potential associated with proposed tourism marketing program alternatives. By changing priorities of goals, budgetary limitations, and organizational constraints, the policy maker can test the effect of changes before they are implemented. By utilizing goal programming, a tourism organization can more systematically evaluate the nature and relative importance of organizational goals, critical constraints affecting the organization and marketing program alternatives.  相似文献   
992.
The goal of universal service has dominated the telecommunications policy landscape for at least the past half century. This policy objective has been promoted with cross subsidies from long-distance telecommunications services to subscribers to local telecommunications service. The economic rationale for these cross subsidies is network externalities. In this paper, we show that: (1) the presence of network externalities, even if substantial in overall magnitude, does not generally justify a subscribership subsidy, even a well-designed one; and (2) the empirical realities of telecommunications markets make it unlikely that subscribership subsidies of any kind will increase social welfare.  相似文献   
993.
This paper examines the desirability and feasibility of replacing the present system of personal and corporate income, sales, excise, capital gains, import and export duties, gift and estate taxes with a single comprehensive revenue neutral Automated Payment Transaction (APT) tax. In its simplest form, the APT tax consists of a flat tax levied on all transactions. The tax is automatically assessed and collected when transactions are settled through the electronic technology of the banking/payments system. The APT tax introduces progressivity through the tax base since the volume of final payments includes exchanges of titles to property and is therefore more highly skewed than the conventional income or consumption tax base. The wealthy carry out a disproportionate share of total transactions and therefore bear a disproportionate burden of the tax despite its flat rate structure. The automated recording of all APT tax payments by firms and individuals eliminates the need to file tax and information returns and creates a degree of transparency and perceived fairness that induces greater tax compliance. Also, the tax has lower administrative and compliance cost. Like all taxes, the APT tax creates new distortions whose costs must be weighted against the benefits obtained by replacing the current tax system.  相似文献   
994.
A regulated upstream monopolist provides an input to firms in a downstream market. If the monopolist enters the downstream market, a natural concern is that it will act so as to raise its downstream rivals' costs. An offsetting incentive is that a higher downstream price will reduce demand for the input, which reduces the monopolist's profit. Conditions under which one incentive dominates the other are derived. The monopolist may desire to lower its downstream rivals' costs rather than raise them. These findings suggest that regulatory policy towards such downstream entry should not focus exclusively on the ability to discriminate.  相似文献   
995.
This paper proposes a game theoretical approach of internationalnegotiations on transboundary pollution. This approach is distinguished bya discrete time formulation and by a suitable formulation of the localinformation assumption on cost and damage functions: at each stage of thenegotiation, the parties assign the best possible cooperative state, giventhe available information, as an objective for the next stage. It is shownthat the resulting sequences of states converges from a non-cooperativesituation to an international optimum in a finite number of stages.Furthermore, a financial transfer structure is also presented that makesthe desired sequence of states individually rational and stategically stable.The concepts are applied in a numerical simulation of the SO2transboundary pollution problem related to acid rain in Northern Europe.  相似文献   
996.
997.
Richard L. Meier 《Futures》1980,12(2):128-141
Preservation—the immortalisation of living and designed things—is a channel for transmitting messages from the past to the future. Image is all important for conveying the meaning. To be preserved, a thing must have a constituency of supporters and a long-lived institution to serve as trustee: when appreciators of the message are no longer recruited, extinction is at hand. Community ecology, if extended to images, suggests some appropriate preservation policies for societies approaching steady state, eg adding to the total stock of biomass, to diversity, and to useful knowledge, while promoting new organised relationships between man and environment.  相似文献   
998.
Recent marketing and psychological studies have shown that more choice does not always benefit consumers. This excessive-choice effect (ECE) is examined empirically using food items in four experiments. The first experiment investigates whether people would voluntarily reduce their choice-set size. The second seeks to replicate previous experimental results. The third and fourth experiments employ nonhypothetical Becker-DeGroot-Marschak (BDM) soda auctions and hypothetical ground beef choice experiments to further detect the prevalence of the ECE in alternative settings and explore the role of personality in decision tasks. Results suggest the ECE exists, but is less prevalent than previous studies suggest.  相似文献   
999.
This paper explores the implications of e‐commerce transactions and the lack of consumer protection regulation on consumer educators and curricula. The discussion is divided into five sections: conceptualizing e‐commerce; the juggernaut of e‐commerce; consumer education defined, especially consumer protection in the electronic market‐place; the Organization for Economic Co‐operation and Development (OECD) 1998 Ottawa conference on electronic commerce; and the implications of this fluid market and policy context on consumer educators. Empowerment of the consumer, the ultimate objective of consumer education, is a total challenge in the global electronic market‐place, but a challenge that must be embraced by staying informed, becoming a consumer advocate, as well as educator, and remaining ever vigilant as curricula are developed for the domestic consumer transacting in an electronic global market.  相似文献   
1000.
Personalization is a key component of an interactive marketing strategy. Its purpose is to adapt a standardized product or service to an individual customer's needs. The goal is to create profit for the producer and increased value for the consumer. This goal fits nicely into traditional notions of segmentation. Applications of personalization have advanced greatly in conjunction with the Internet, since it provides an environment that is information rich and well suited to interactivity. This article reviews past research on personalization and considers some examples of personalization in practice. We discuss what we believe are key problems and directions for personalization in the future.  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