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   2822篇
  免费   63篇
财政金融   513篇
工业经济   176篇
计划管理   472篇
经济学   594篇
综合类   43篇
运输经济   18篇
旅游经济   28篇
贸易经济   409篇
农业经济   151篇
经济概况   480篇
信息产业经济   1篇
  2021年   24篇
  2020年   35篇
  2019年   45篇
  2018年   61篇
  2017年   69篇
  2016年   81篇
  2015年   31篇
  2014年   82篇
  2013年   335篇
  2012年   95篇
  2011年   111篇
  2010年   87篇
  2009年   79篇
  2008年   88篇
  2007年   92篇
  2006年   61篇
  2005年   50篇
  2004年   45篇
  2003年   46篇
  2002年   46篇
  2001年   49篇
  2000年   35篇
  1999年   40篇
  1998年   31篇
  1997年   44篇
  1996年   40篇
  1995年   31篇
  1994年   49篇
  1993年   35篇
  1992年   41篇
  1991年   31篇
  1990年   39篇
  1989年   37篇
  1988年   42篇
  1987年   35篇
  1986年   26篇
  1985年   51篇
  1984年   45篇
  1983年   36篇
  1982年   51篇
  1981年   38篇
  1980年   46篇
  1979年   40篇
  1978年   47篇
  1977年   31篇
  1976年   32篇
  1975年   38篇
  1974年   23篇
  1973年   30篇
  1971年   25篇
排序方式: 共有2885条查询结果,搜索用时 0 毫秒
1.
2.
The intrinsic value approach amortizes over the life of the option, the difference between the stock price on the date of the grant and the exercise price of the option. The fair market value approach amortizes over the life of the option, the market value of stock options on the date of the grant. These approaches do not reflect the changes in the option–based compensation cost after the grant date. This paper proposes an economic cost approach that not only adjusts for the changes in the value of the options during its life but also records the issuance of the stock at fair market value on the exercise date.  相似文献   
3.
The rise of environmentalism in the past decade has become a major transforming force in pollutive and hazard prone industries. Corporate environmental responsiveness is not simply a peripheral and one of the many ‘social’ or ‘ethical’ issues facing business. It is becoming a central concern for competitiveness, productivity, and profitability. It is creating strategic transformation of companies in a diverse range of industries such as, Autos, Chemicals, Oil, Fast Foods, Power Generation, Pharmaceuticals, etc. The process of environmentally directed self-renewal, called ‘greenewal’ here, affects all aspects of companies. It implies changes in products, production systems, waste management practices and internal systems. It seeks to make companies simultaneously more competitive and environmentally responsible. This paper describes the pressures of and responses to environmentalism in a selected set of industries. It examines the processes of greenewal that companies are undergoing. It identifies implications for strategic greening of firms.  相似文献   
4.
This article analyses the effects of action aimed at narrowing the gap between South Africa's ‘two agricultures’, specifically the effects of the Farmer Support Programme (FSP) on structural aspects of maize production under different marketing policies. This is done by assembling a sectoral linear programming model of the South African summer-rainfall grain-producing area. The emphasis is on the inclusion of supply, demand and production risk. Results show that the effects of a successful FSP on specific interest groups, e.g. consumers of a specific product, or producers in a specific region, depend on the marketing policy followed, as well as on the effectiveness of the FSP. The analysis accentuates the interrelationships in South African crop production and illustrates how past policies ignored regional comparative advantages, distorted regional development and affected social welfare.  相似文献   
5.
The political strength in the EC and UK of the belief that high levels of self-sufficiency make food supplies more secure is demonstrated and explained. The relationship is examined analytically and critically, taking particular account of the priority of food, adjustment costs, and linkages between agriculture and other sectors. The need for a policy of food security in Western Europe is discussed in relation to military, crop and trade uncertainties. Finally, the elements of a more rational policy, including measures of storage, procurement and production independence, are outlined.  相似文献   
6.
7.
8.
Two questions formed the structure for examining the formal communication among researchers using the Journal of Consumer Studies and Home Economics (JCSHE) The first question pertained to the interrelationship between the literature published and cited in JCSHE. The second asked what impact the literature published in JCSHE had on authors publishing in other journals. By performing Bradford analysis using the 1,160 journal references cited by authors of 210 articles in the first seven volumes of JCSHE, 26 core journals were identified. JCSHE was ranked second because it was cited 54 times in 37 articles by 29 authors. Through citation analysis 17 citing articles published in 12 journals other than JCSHE were found. Seven of these 17 citing articles were published in other home economics journals.  相似文献   
9.
This paper formalizes the commonsensical hypothesis that resource scarcity causes a large allocation of time and effort to appropriative competition. Our main innovation is to model explicitly the positive intertemporal effect of consumption on the probability of survival. The critical assumption is that this effect becomes stronger as resources become scarcer. We also show that anticipated future resource abundance increases the incremental value of survival and, consequently, amplifies the current allocation of time and effort to appropriative competition. Interestingly, if resources are currently scarce, then larger anticipated future abundance can cause a big enough increase in the time and effort allocated to appropriative competition to result in a decrease in the sum of current and expected future utility, a “paradox of anticipated abundance”.  相似文献   
10.
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