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   531篇
  免费   22篇
财政金融   53篇
工业经济   38篇
计划管理   87篇
经济学   210篇
综合类   2篇
运输经济   9篇
旅游经济   9篇
贸易经济   82篇
农业经济   21篇
经济概况   42篇
  2024年   1篇
  2023年   11篇
  2022年   10篇
  2021年   6篇
  2020年   22篇
  2019年   19篇
  2018年   23篇
  2017年   26篇
  2016年   24篇
  2015年   14篇
  2014年   26篇
  2013年   59篇
  2012年   37篇
  2011年   23篇
  2010年   25篇
  2009年   25篇
  2008年   21篇
  2007年   17篇
  2006年   16篇
  2005年   15篇
  2004年   13篇
  2003年   9篇
  2002年   10篇
  2001年   11篇
  2000年   10篇
  1999年   11篇
  1998年   4篇
  1997年   4篇
  1996年   8篇
  1995年   3篇
  1994年   3篇
  1993年   1篇
  1992年   3篇
  1991年   4篇
  1990年   2篇
  1989年   2篇
  1988年   1篇
  1987年   3篇
  1986年   4篇
  1985年   3篇
  1984年   3篇
  1983年   3篇
  1981年   6篇
  1980年   4篇
  1976年   3篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1971年   1篇
  1967年   1篇
排序方式: 共有553条查询结果,搜索用时 644 毫秒
71.
72.
The European Community is under pressure to reform the CAP, mainly due to internal financial reasons. Proposals have been put forward by the EC Commission that reform the CAP with respect to milk, oils and fats, and corngluten and citrus pellets. The authors look at the impact of these proposals on developing countries. They conclude that the effect will be to increase non-tariff barriers to trade and increase the cost of food production both in and outside the EC.  相似文献   
73.
The impact of sector-specific (direct) and economywide (indirect)policies on agricultural incentives for eighteen developingcountries for the period 1975–84 are estimated. The directeffect is measured by the proportional difference between theproducer price and the border price (adjusting for distribution,storage, transport, and other marketing costs). The indirecteffect has two components. The first is the impact of the unsustainableportion of the current account deficit and of industrial protectionpolicies on the real exchange rate and thus on the price ofagricultural commodities relative to nonagricultural nontradables.The second is the impact of industrial protection policies onthe relative price of agricultural commodities to that of nonagriculturaltradable goods. We find that (1) in almost all cases the directeffect is equivalent to a tax on exportable goods (–11percent on average) and to a subsidy for importables (20 percenton average); (2) the indirect effect also taxes agriculture(–27 percent on average) and dominates the direct effect(whether the direct effect is positive or negative); and (3)the direct policies for both importables and exportables stabilizedomestic producer prices.  相似文献   
74.
75.
76.
On the interaction between public and private capital in economic growth   总被引:2,自引:1,他引:1  
This paper introduces two forms of interaction between private and public capital in an endogenous growth model in which productive government expenditure takes the form of a stock-variable and public capital is used in part as an input in the production of final output and in part to increase its own supply. While the first form of interaction involves the stocks of the two capital-goods and takes place within the final output sector through the specification of the aggregate production function (Cobb?CDouglas vs. CES), the second one concerns the rates of investment in the two kinds of capital. The share of productive public expenditure devoted to output production can be either exogenous or endogenous. Our results suggest that when this share is exogenous, along the balanced growth path the optimal growth rate of the economy is a positive function of the degree of complementarity between the two forms of investment. When the share of productive public expenditure devoted to output production is endogenous, the public capital share in GDP becomes, along with the model??s preference parameters, an important determinant of the economy??s long run growth. We also find that the optimal growth rate is an increasing function of the elasticity of substitution between public and private capital inputs in goods production, and is independent of the complementarity/substitutability between the two forms of investment.  相似文献   
77.
That collusion among sellers hurts buyers is a central tenet in economics. We provide an oligopoly model in which collusion can raise consumer surplus. A differentiated‐product duopoly operates in two geographically separated markets. Each market is home to a single firm, but can import, at a cost, from the foreign firm. Under some circumstances, a perfect cartel, relative to duopolistic competition, raises the price of the imported good and lowers the price of the home good. This raises welfare for most consumers and increases aggregate consumer surplus. A similar possibility result applies to autarky. Our analysis applies beyond the spatial setting.  相似文献   
78.
This paper examines the influence of internal barriers on the relationship between the organizational capability of stakeholder integration and proactive environmental strategies. We adopt a moderate hierarchical regression model to test the hypotheses using data from a sample of 73 managers in the business education industry. The paper contributes to stakeholder theory by showing that stakeholder integration positively influences the development of proactive environmental strategies when managers perceive internal barriers to the development of such strategies. This article also explores an ethical dilemma—managers may use the stakeholder integration capability to support their own interests rather than to benefit stakeholders.  相似文献   
79.
Using novel data on investors' bond portfolios, we study the contagion of the crisis from securitized bonds to corporate bonds. When securitized bonds became “toxic” in August 2007, mutual funds retained the now illiquid securitized bonds and sold corporate bonds. Funds with negative flows or high liquidity needs liquidated more than others. Yield spreads increased more for corporate bonds whose pre-crisis bondholders were more heavily exposed to securitized bonds, compared to same-issuer bonds held by unexposed investors. The findings suggest that liquidity-constrained investors with exposure to securitized bonds played a role in propagating the crisis from securitized to corporate bonds.  相似文献   
80.
The effect of different supplementary feeding rates for grazing cattle on high-altitude pastures dynamics was evaluated. A field experiment was carried out during three years in a subalpine pasture area of the Eastern Alps. The investigated pasture area was 40?ha, located between 1820 and 2230?m?a.s.l. Two paddocks were chosen in the experiment and two herds of 12 cattle each were kept in the two enclosures for 5 weeks. For the first herd (HS), the supplementary feeding rate was 4.8?kg?OM?head?1 per day, while for the second herd (LS), the rate was 1.6?kg?OM?head?1 per day. The amount of herbage consumed by each cattle was determined using the n-alkane technique. To monitor the pasture vegetation dynamics, eight metal exclusion cages were placed in each paddock to determine herbage growth, utilization rates, vegetation composition and animal grazing selectivity. Grazing behaviour of dairy cattle, in terms of herbage intake and species selection was affected by the different feeding rates. Cattle grazing Paddock HS consumed 1.9?kg?OM?day?1 of herbage less than Paddock LS. In the LS paddock, cattle grazed higher phytomass rates. When the animals were fed by higher concentrate rates, a more selective grazing seemed to significantly increase the pasture necromass component. The lower grazing selectivity favoured the development of species as Nardus stricta and Deschampsia caespitosa, which are well known for their low palatability. Distinct vegetation dynamic patterns were observed, with a reduction of hair grass and an increase of legumes in the Paddock LS.  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