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   1303篇
  免费   29篇
财政金融   169篇
工业经济   91篇
计划管理   271篇
经济学   281篇
综合类   4篇
运输经济   7篇
旅游经济   5篇
贸易经济   286篇
农业经济   51篇
经济概况   128篇
邮电经济   39篇
  2021年   11篇
  2020年   18篇
  2019年   19篇
  2018年   23篇
  2017年   20篇
  2016年   30篇
  2015年   10篇
  2014年   39篇
  2013年   159篇
  2012年   41篇
  2011年   53篇
  2010年   40篇
  2009年   53篇
  2008年   39篇
  2007年   48篇
  2006年   35篇
  2005年   29篇
  2004年   44篇
  2003年   48篇
  2002年   43篇
  2001年   24篇
  2000年   22篇
  1999年   23篇
  1998年   21篇
  1997年   21篇
  1996年   28篇
  1995年   12篇
  1994年   10篇
  1993年   17篇
  1992年   13篇
  1990年   9篇
  1989年   10篇
  1988年   14篇
  1987年   14篇
  1986年   21篇
  1985年   25篇
  1984年   22篇
  1983年   15篇
  1982年   10篇
  1981年   10篇
  1980年   11篇
  1978年   13篇
  1977年   9篇
  1976年   8篇
  1975年   12篇
  1974年   9篇
  1973年   10篇
  1972年   15篇
  1970年   8篇
  1969年   9篇
排序方式: 共有1332条查询结果,搜索用时 15 毫秒
161.
Interorganizational networks generally have been discussed in the context of nonprofit agencies. Providing an alternative between the open market and the internalization of activity the network potentially may be even more important in business. This is especially true in international operations and in industrial and services marketing. Involving technology transfer, information exchange, accounting and finance as well as marketing, network management calls for a holistic approach. To serve as an engine of growth the network also requires strategic planning both at the overall level and in member firms.  相似文献   
162.
Explaining Trade Flows of Singapore   总被引:3,自引:0,他引:3  
The objective of this paper is twofold. First, the development of the trade patterns of Singapore and particularly between Singapore and its South-East Asian partners will be outlined and interpreted against a backdrop of relevant trade policy measures, for example in the context of the Association of Southeast Asian Nations (ASEAN). Second, a simple model of the gravity type is applied in order to establish and quantify the role of various trade determinants. Despite the fact that Singapore has strived at being a 'global city', it remains rather heavily biased towards East Asia as far as foreign trade is concerned. The role of ASEAN in particular is strong, even if the role of entrepôt trade tends to exaggerate the degree of integration between the economies of Singapore and ASEAN. It also seems clear that the latter, as an organization, has not contributed much to the development of trade relations between its members. Rather the closeness and the liberalization of these economies during the last 15 years or so appear to have been decisive. It is interesting to note that the newer members of ASEAN seem to have been integrated quickly in Singapore's economic network.  相似文献   
163.
In Denmark the poultry industry and the National Committee for Pig Production, together with the feedstuff industry, decided to voluntarily abolish the use of all Anti-microbial Growth Promoters (AGP). The poultry industry abolished the use of AGP from 15 February 1998 and the pig industry followed on 1 March 1998 (for pigs over 35 kg) and 1 January 2000 (for pigs under 35 kg). To evaluate the effects of the removal of AGP, data from both the poultry and pig industries were collected prior to and after the removal of AGP from animal feed. Utilizing these production data, this paper calculates economy-wide effects of the removal of AGP using the Agricultural Applied General Equilibrium (AAGE) model of the Danish economy. The results show that the long-term effects are a moderate decline in the production and export of pig meat, and a positive indirect effect on other industries including poultry due to lower rental rates for primary factor inputs. The overall implication is a small decline in real GDP of 0.03%, reducing public and private consumption by 68 DKK per capita per year in Denmark.  相似文献   
164.
This article reviews recent developments in China’s agricultural domestic support policy, especially the transition from taxing farmers and agriculture to providing direct subsidies to grain production and purchased inputs. A model‐based quantitative analysis on the effects of these policy changes is presented. Simulation results suggest that recent policy changes have achieved the declared policy goals of increasing grain production and boosting farm income. Much of the increase in grain production and farm income can be attributed to higher per unit return to arable land, land reallocation to grain production and extra agricultural employment triggered by the policy changes. Based on the assumption that China’s public assistance to agriculture and farmers will continue and rise, two hypothetical future scenarios are simulated. Using all the support permitted under WTO de minimis limits with existing instruments, China’s policy will increase grain production, change trade patterns seemingly contrary to China’s comparative advantage, increase rural employment and significantly increase farm income (by more than 12%). If, however, decoupled instruments are applied to raise China’s agricultural domestic support to the same level, China’s agricultural production and trade will remain unchanged, rural employment remain stable, but farm income will be increased by nearly 15%.  相似文献   
165.
Abstract

We consider two models in which the logarithm of the price of an asset is a shifted compound Poisson process. Explicit results are obtained for prices and optimal exercise strategies of certain perpetual American options on the asset, in particular for the perpetual put option. In the first model in which the jumps of the asset price are upwards, the results are obtained by the martingale approach and the smooth junction condition. In the second model in which the jumps are downwards, we show that the value of the strategy corresponding to a constant option-exercise boundary satisfies a certain renewal equation. Then the optimal exercise strategy is obtained from the continuous junction condition. Furthermore, the same model can be used to price certain reset options. Finally, we show how the classical model of geometric Brownian motion can be obtained as a limit and also how it can be integrated in the two models.  相似文献   
166.
Successful regional products, such as Florida oranges, Idaho potatoes and Parma ham, often have to compete against products passing themselves off as the authentic product using the exact same name. This unfair competition misleads consumers, discourages small‐ and medium‐sized enterprises (SMEs) from marketing products based on their region of origin, and may end up hurting rural economies. To protect consumers, and support SMEs and rural economies, many countries around the world have introduced regulations enabling SMEs to legally protect the names of their regional products. The success of these regulations largely depends on consumers’ appreciation of regional certification labels that inform consumers that the name of the regional product is protected and that it denotes the authentic product. To gain an understanding about consumers’ appreciation of regional certification labels, this paper investigates consumers’ image of these labels and proposes a model that relates this image to consumers’ willingness to buy and pay for protected regional products. The model is tested based on Regulation No. 2081/92 that was introduced by the EEC allowing European SMEs to protect their regional products and market their products with a protected‐designation‐of‐origin (PDO) label. Structural equation modelling results suggest that consumers’ image of regional certification labels consists of a quality warranty dimension and an economic support dimension, which positively relate to consumers’ willingness to buy and pay for the protected regional product. Protecting regional products and marketing them with regional certification labels may be beneficial for SMEs producing and marketing regional products. Policy and managerial implications are discussed.  相似文献   
167.
168.
169.
This paper considers the implementation of a non-stationary, heterogeneous Markov model for the analysis of binary dependent variables in a time series of repeated cross-sectional (RCS) surveys. The model offers the opportunity to estimate entry and exit transition probabilities and to examine the effects of time-constant and time-varying covariates on the hazards. We show how maximum likelihood estimates of the parameters can be obtained by Fishers method-of-scoring and how to estimate both fixed and time-varying covariate effects. The model is exemplified with an analysis of the labor force participation decision of Dutch and West German women using ISSP (and other) data from 10 annual Dutch surveys conducted between 1987 and 1996 and 7 annual West German surveys conducted between 1988 and 1994. Some open problems concerning the application of the model are discussed.  相似文献   
170.
The need for a simple and general overview of the development in the state of the environment has led to work on environmental indicators in several countries and international organizations. Except for the basic common requirement of providing an overview, the works vary a great deal with regard to final aim, target groups, classification and, hence, choice of indicators. This paper gives an overview of the work carried out in the Central Bureau of Statistics of Norway within this field, with emphasis on the basic principles behind the choice of indicators. A hierarchical system of indicator sets is proposed, and examples of indicators are presented. Also, a brief overview of work carried out elsewhere is included.  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