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   842篇
  免费   61篇
财政金融   166篇
工业经济   72篇
计划管理   138篇
经济学   178篇
综合类   7篇
运输经济   24篇
旅游经济   52篇
贸易经济   165篇
农业经济   14篇
经济概况   86篇
邮电经济   1篇
  2023年   7篇
  2022年   8篇
  2021年   9篇
  2020年   24篇
  2019年   22篇
  2018年   38篇
  2017年   43篇
  2016年   31篇
  2015年   24篇
  2014年   37篇
  2013年   132篇
  2012年   47篇
  2011年   45篇
  2010年   51篇
  2009年   46篇
  2008年   50篇
  2007年   32篇
  2006年   36篇
  2005年   22篇
  2004年   16篇
  2003年   15篇
  2002年   26篇
  2001年   20篇
  2000年   10篇
  1999年   18篇
  1998年   10篇
  1997年   8篇
  1996年   12篇
  1995年   8篇
  1994年   4篇
  1993年   3篇
  1992年   4篇
  1991年   2篇
  1990年   4篇
  1989年   4篇
  1988年   2篇
  1987年   2篇
  1986年   4篇
  1985年   3篇
  1984年   5篇
  1982年   3篇
  1981年   3篇
  1980年   1篇
  1979年   3篇
  1977年   4篇
  1976年   2篇
  1975年   1篇
  1973年   1篇
  1972年   1篇
排序方式: 共有903条查询结果,搜索用时 15 毫秒
131.
现代农业园区建设与农地流转具有密切的关系:农地流转是加快现代农业园区建设和实现农业规模经营的前提条件,加强现代农业园区建设,有利于促进农村土地承包经营权合理流转。现代农业园区建设中农地流转存在的问题:一是现行法律法规对土地所有权主体规定得过于原则和笼统,存在所有者主体多元化和界定不清等问题;二是社会保障制度的滞后性严重影响了土地流转;三是土地流转中农村居民点的处理难度大,农民安置成本高;四是土地流转方式单一,土地收益分配不均。对策建议:一要加强地籍管理,明晰土地产权;二要加大社会保障制度建设的力度;三要妥善处理农地流转与农民安置的关系;四要采用多种农地流转模式,保障流转双方利益。  相似文献   
132.
We show that the probability of information-based trade (PIN) played a significant role in explaining monthly returns on Shanghai A shares over the period 2001 to 2006. In particular, PIN, as approximated by order imbalance as a proportion of total transactions, appears to explain returns even after controlling for risk in the much-cited Fama and French [Fama, E. F. & French, K. R. (1992). The Cross-Section of Expected Stock Returns. Journal of Finance, XLVII, 427–465.] three-factor model. However, we also find that some of the PIN effect appears to be indistinguishable from a turnover effect.  相似文献   
133.
Faced with the challenge of launching a new product into numerous countries, managers may view a sequential rollout as the prudent course of action. Rather than launching the product simultaneously in diverse countries, they may believe they can reduce risk by launching first in one or two countries, and then in others. However, this strategy overlooks the interplay between timeliness in international new product rollouts (INPR) and product success. George M. Chryssochoidis and Veronica Wong explore these issues in a study of 30 high-tech products launched into multiple European markets. Their study has three objectives: examining the incidence of timeliness and delays in simultaneous and sequential INPR; exploring the causes of delays in INPR; and assessing the effects that INPR timeliness and delays have on new product outcomes. They define timeliness in INPR as the availability of the new product to the firm's multiple target markets within the time frame planned by the company's managers. In other words, timeliness in this study reflects a company's capability for adhering to the schedule that management has established. Contrary to expectations, the results of this study do not reveal direct effects on timeliness in INPR from such sources as diversity of target markets or the firm's external environment. These results suggest that firms can achieve on-time, multicountry rollout of new products notwithstanding the legal, technological, and competitive environment. For the firms in this study, timeliness in INPR depends on such factors as sufficiency of marketing and technological resources (for example, to train sales staff, provide after-sales service, and adapt the product for multiple markets), proficiency in executing new product development activities, and effective communication between a company's headquarters and its business units and customers in different countries. Among the 22 product launches categorized as sequential rollouts in this study, 15 experienced delays. All eight of the simultaneous launches were timely. The results of this study indicate a positive relationship between timeliness in INPR and new-product success. Conversely, for the firms in this study, delays in INPR resulted in lower-than-expected product sales and profitability. In other words, the seemingly less risky sequential launch strategy may actually increase the risk of new product failure by delaying product rollout in multiple markets.  相似文献   
134.
2008年以来,全世界都处于经济危机的漩涡之中,风险管理的缺失被认为是其中原因之一.一直以来,风险管理主要侧重于市场、信用和营运风险.对于银行机构来说,这些风险实际上已经在巴塞尔新协议中作了规范,而且都单独对这些风险进行管理和应对.  相似文献   
135.
136.
This study looks at international competitiveness of agriculture in the European Union and the United States. The most intuitive concept is that of price competitiveness. We calculate relative prices for 11 member states of the European Union and the United States for the period 1973–2002. We assume that markets are perfectly competitive and in long‐run equilibrium, so that the observed price always equals average total cost, as measured by the cost dual to the production function. This assumption is used in our calculation of relative competitiveness and productivity gaps between the European Union and the United States and in our decomposition of relative price movements between changes in relative input prices and changes in relative productivity levels.  相似文献   
137.
This paper examines the interaction between investment and financing decisions of a firm using a real options approach. The firm is endowed with a perpetual option to invest in a project at any time by incurring an irreversible investment cost at that instant. The amount of the irreversible investment cost is directly related to the intensity of investment that is endogenously chosen by the firm. At the investment instant, the firm can finance the project by issuing debt and equity, albeit subject to an exogenously given credit constraint that prohibits the firm’s debt-to-asset ratio from exceeding a prespecified threshold. The optimal capital structure of the firm is determined by the trade-off between interest tax-shield benefits and bankruptcy costs of debt. Irrespective of whether the exogenously given credit constraint is binding or not, we show that leverage has no impact on the firm’s optimal investment intensity, thereby rendering the neutrality of debt in investment intensity. Similar to earlier work, we show that debt is not neutral to investment timing in general, and the levered firm invests earlier than the unlevered firm in particular.  相似文献   
138.
Product return behavior and factors that contribute to product returns are an under-researched area, despite significant importance to manufacturers and retailers. The current research attempts to fill the gap by focusing on two factors that shape consumer purchase behavior: (1) whether purchases are planned or unplanned, and (2) whether hedonic or utilitarian motivations drive purchases. The findings show that purchase plans and buying motivations have distinctive and interactive impacts on pre-purchase concerns, self-estimated likelihood of returning purchases, and purchase intentions with or without return policies. When hedonic motivation drives purchases, unplanned (vs. planned) purchases lead to higher return concerns, higher return likelihood, and lower buying intentions. When utilitarian motivation drives purchases, planned and unplanned purchases have comparable return concerns, return likelihood, and buying intentions. This interaction effect on buying intentions dissipates when a lenient return policy is offered.  相似文献   
139.
Using the capital market approach and the equity price data of 14 listed Chinese banks, this empirical study finds that there is a positive relationship between bank size and foreign exchange exposure. This relationship may reflect the larger foreign exchange operations and trading positions of larger Chinese banks and their significant indirect foreign exchange exposure arising from impacts of the renminbi exchange rate movements on their customers. Empirical evidence also suggests that the average foreign exchange exposures of state-owned and joint-stock commercial banks in China are higher than those of banks in Hong Kong, notwithstanding their limited participation in international banking businesses compared with their Hong Kong counterparts. It is also found that negative foreign exchange exposure is prevalent for larger Chinese banks, suggesting that an appreciation of the renminbi tends to reduce their equity value. It is therefore likely that the banking sector's performance will be hampered. Together with the fact that decreases in equity values generally imply a higher default risk, the effects of different scenarios of renminbi appreciation on the default risk of Chinese banks should therefore be closely monitored.  相似文献   
140.
This article reports psychometric evaluation of the Penn State Leadership Competency Inventory (LCI). The 32‐item LCI was validated on a sample of 323 managers in the health care industry. Preliminary validity and reliability evidence of the LCI was established through exploratory factor analysis (EFA), item‐total correlations, Cronbach's alpha coefficients, and confirmatory factor analysis (CFA). The four‐factor leadership competency scale, comprising supervisory and managerial competencies, organizational leadership, personal mastery, and resource leadership, accounted for 58% of variance. According to CFA results, the model fit of the four latent factors of the LCI was confirmed to be appropriate. Cross‐validation with other populations is needed to confirm the factor structure. Limitations and further research recommendations are discussed.  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