全文获取类型
收费全文 | 1022篇 |
免费 | 27篇 |
专业分类
财政金融 | 186篇 |
工业经济 | 128篇 |
计划管理 | 179篇 |
经济学 | 220篇 |
综合类 | 7篇 |
运输经济 | 11篇 |
旅游经济 | 23篇 |
贸易经济 | 211篇 |
农业经济 | 25篇 |
经济概况 | 59篇 |
出版年
2021年 | 10篇 |
2020年 | 16篇 |
2019年 | 29篇 |
2018年 | 26篇 |
2017年 | 25篇 |
2016年 | 23篇 |
2015年 | 16篇 |
2014年 | 18篇 |
2013年 | 109篇 |
2012年 | 22篇 |
2011年 | 38篇 |
2010年 | 31篇 |
2009年 | 35篇 |
2008年 | 36篇 |
2007年 | 25篇 |
2006年 | 37篇 |
2005年 | 25篇 |
2004年 | 23篇 |
2003年 | 26篇 |
2002年 | 28篇 |
2001年 | 19篇 |
2000年 | 22篇 |
1999年 | 16篇 |
1998年 | 30篇 |
1997年 | 24篇 |
1996年 | 19篇 |
1995年 | 17篇 |
1994年 | 16篇 |
1993年 | 17篇 |
1992年 | 17篇 |
1991年 | 19篇 |
1990年 | 11篇 |
1989年 | 11篇 |
1988年 | 12篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 22篇 |
1984年 | 11篇 |
1983年 | 14篇 |
1982年 | 17篇 |
1981年 | 18篇 |
1980年 | 15篇 |
1979年 | 11篇 |
1978年 | 12篇 |
1977年 | 12篇 |
1976年 | 13篇 |
1975年 | 3篇 |
1967年 | 3篇 |
1955年 | 4篇 |
1954年 | 6篇 |
排序方式: 共有1049条查询结果,搜索用时 31 毫秒
31.
In this study we examine the association among confirming management forecasts, stock prices, and analyst expectations. Confirming management forecasts are voluntary disclosures by management that corroborate existing market expectations about future earnings. This study provides evidence that these voluntary disclosures affect stock prices and the dispersion of analyst expectations. Specifically, we find that the market's reaction to confirming forecasts is significantly positive, indicating that benefits accrue to firms that disclose such forecasts. In addition, although we find no significant change in the mean consensus forecasts (a proxy for earnings expectations) around the confirming forecast date, evidence indicates a significant reduction in the mean and median consensus analyst dispersion (a proxy for earnings uncertainty). Finally, we document a positive association between the reduction of dispersion of analysts' forecasts and the magnitude of the stock market response. Overall, the evidence suggests that confirming forecasts reduce uncertainty about future earnings and that investors price this reduction of uncertainty. 相似文献
32.
Debt in industry equilibrium 总被引:10,自引:0,他引:10
This article shows (1) how entry and exit of firms in a competitiveindustry affect the valuation of securities and optimal capitalstructure, and (2) how, given a trade-off between tax advantagesand agency costs, a firm will optimally adjust its leveragelevel after it is set up. We derive simple pricing expressionsfor corporate debt in which the price elasticity of demand forindustry output plays a crucial role. When a firm optimallyadjusts its leverage over time, we show that total firm valuecomprises the value of discounted cash flows assuming fixedcapital structure, plus a continuum of options for marginalincreases in debt. 相似文献
33.
Douglas J. Miller 《战略管理杂志》2006,27(7):601-619
Previous findings that related diversification creates value have been called into question over concerns about methodology and measures. Reviewing existing theory to consider how a firm's knowledge base interacts with its product market activity, I address several of these concerns by creating a measure of technological diversity based on citation‐weighted patents. The measure indicates a firm's opportunity for corporate diversification based on economies of scope in valuable knowledge assets, is defined for both single‐ and multibusiness firms, and is not correlated with more fundamental aspects of diversification, such as the number of businesses in the corporate portfolio. Evidence from a large sample of firms shows the positive relationship between diversification based on technological diversity and market‐based measures of performance, controlling for R&D intensity and capital intensity as further indicators of the type of assets underlying diversification. Results hold when controlling for the endogeneity of diversification and performance in a cross‐sectional sample or when controlling for unobserved factors using panel data. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
34.
Malak Tleis Roberta Callieris Lina Al Bitar Rocco Roma John Thgersen 《International Journal of Nonprofit & Voluntary Sector Marketing》2019,24(4)
To increase the sparse knowledge about what drives organic food consumers in developing markets, Lebanese consumers' reasons and motives for buying organic food are studied in the framework of means‐end chain theory. A sample of N = 180 Lebanese consumers was interviewed in several retail outlets using a hard laddering questionnaire. The data were subjected to frequency analysis, cluster analysis, and structural equation modelling. Hierarchal value maps constructed from the laddering interviews revealed that “quality of life,” “pleasure,” and “peace of mind” are the main values driving organic food consumption in Lebanon. Frequent organic consumers displayed higher concern for their family's health and for the environment, whereas occasional organic consumers cared more about their own pleasure and were more likely to perceive organic food as a traditional and nostalgic product. Structural equation modelling revealed that “care for nature” and “care for children's health” significantly affect consumers' (self‐reported) purchasing behaviour. The found means‐end chains are a useful basis for marketing campaigns for organic food products in the Lebanese market. One focus of marketing campaigns should be raising consumers' awareness on the environmental benefits of organic production and the fact that it does not allow the use of harmful chemical products. 相似文献
35.
The policy environment for the Irish agri‐food sector could change rapidly in the coming decade. A potentially positive factor will be the elimination of milk quotas in 2015, although a potentially negative factor will be further trade liberalisation and increased import competition. These changes come on top of the move to decouple direct aids to farmers in 2005 as part of the Mid‐Term Review of the EU's Common Agricultural Policy agreed in 2003. This paper examines these reforms and their impacts on the Irish economy and income distribution using a CGE model particularly rich in detail on the agri‐food sectors, differentiated household groups, and agricultural policy instruments including their links to productive factors and households. The results suggest that the past and projected changes in the policy environment have, in sum, a small positive impact on GDP and household income. However, the gains and losses are unequally distributed across sectors and household groups due to the highly differentiated distribution of support and protection. Although all households generally gain from the sequence of policy reforms in the long run, some experience strong adverse effects from particular reforms and in the medium term. 相似文献
36.
Food waste,catering practices and public procurement: A case study of hospital food systems in Wales
This article aims to address the need for more comprehensive studies on sustainable food systems through a case study of hospital food waste in Wales, UK. Based on a mixed-method research approach that focused on the links between hospital food waste, catering practices and public procurement strategies, the article shows that the hospital meal system, in the case studied, is responsible for overall levels of food waste that greatly exceed the official percentages provided by the Health Board. In addition to showing the theoretical benefits of research that accounts for the complex interrelations between different stages of the food chain, the study raises the need for a more integrated political approach that mobilizes all actors in the food system around a shared vision for sustainable development. 相似文献
37.
While the literature is rich with studies on the identification of alternative types of learning processes that might exist in the real world, the identification of the determinants of the structural changes in regional learning processes is still an underexplored research field in regional innovation theories. This paper proposes the concept of regional learning paradigms and trajectories to study how alternative and more advanced learning processes arise in a region, and highlights the evolutionary path-creation strategies enabling a paradigmatic jump. By taking into consideration also learning modes typical of peripheral or declining industrial areas, generally left aside in previous theories, this new conceptual approach allows us to understand how more complex learning and innovation processes can emerge in all types of regions. From these reflections, spontaneous processes or policy recommendations to catch-up in the innovation ladder are highlighted for each type of region. 相似文献
38.
39.
Furkan Emirmahmutoglu Rangan Gupta Stephen M. Miller Tolga Omay 《Bulletin of economic research》2020,72(1):50-62
This paper re-examines the stochastic properties of U.S. state real per capita personal income, using new panel unit-root procedures. The new developments incorporate non-linearity, asymmetry, and cross-sectional correlation within panel-data estimation. Including nonlinearity and asymmetry finds that 43 states exhibit stationary real per capita personal income whereas including only nonlinearity produces 42 states that exhibit stationarity. Stated differently, we find that two states exhibit nonstationary real per capita personal income when considering nonlinearity, asymmetry, and cross-sectional dependence. 相似文献
40.
Using wheat market support data from 55 countries for 1961–2011 from the World Bank Agricultural Distortion database, we develop a fixed effect model that shows a more complicated, nonlinear relationship between income and wheat support and its components than previously realised. We find that income generally has a greater effect on border market price support than on domestic price support. Moreover, the difference between these types of support is greater for net importers than for net exporters and has increased with the URAA or WTO accession. Holding other variables constant, the wheat support level of China, driven mainly by border market price support, is projected to rise with future income growth. Meanwhile, Japan is projected to maintain its high level of support, while the US and EU are projected to maintain their lower levels of support. These results are relevant in the context of multilateral trade negotiations, arguing against a narrow focus on past or current policy profiles and for long‐run analyses that might mistakenly rest on the inconsistent assumptions of constant agricultural policies against the backdrop of rising incomes. 相似文献