全文获取类型
收费全文 | 2050篇 |
免费 | 45篇 |
专业分类
财政金融 | 270篇 |
工业经济 | 135篇 |
计划管理 | 434篇 |
经济学 | 434篇 |
综合类 | 182篇 |
运输经济 | 9篇 |
旅游经济 | 6篇 |
贸易经济 | 258篇 |
农业经济 | 119篇 |
经济概况 | 246篇 |
邮电经济 | 2篇 |
出版年
2024年 | 5篇 |
2023年 | 20篇 |
2022年 | 31篇 |
2021年 | 57篇 |
2020年 | 50篇 |
2019年 | 37篇 |
2018年 | 27篇 |
2017年 | 38篇 |
2016年 | 49篇 |
2015年 | 45篇 |
2014年 | 61篇 |
2013年 | 106篇 |
2012年 | 143篇 |
2011年 | 250篇 |
2010年 | 226篇 |
2009年 | 131篇 |
2008年 | 141篇 |
2007年 | 115篇 |
2006年 | 152篇 |
2005年 | 142篇 |
2004年 | 55篇 |
2003年 | 42篇 |
2002年 | 44篇 |
2001年 | 39篇 |
2000年 | 10篇 |
1999年 | 10篇 |
1998年 | 10篇 |
1997年 | 8篇 |
1996年 | 8篇 |
1995年 | 3篇 |
1994年 | 9篇 |
1993年 | 4篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1988年 | 3篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 2篇 |
1982年 | 3篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有2095条查询结果,搜索用时 390 毫秒
71.
在铁路运输的速度、密度、重量三种因素中,我国铁路货运的密度、速度发展均居世界前列,同时考虑到既有站场条件下对编组长度的限制,提高轴重已成为当前我国发展高效能铁路运输的最佳选择.针对27 t轴重货车开行,就既有线路钢轨、道岔、桥涵、驼峰、到发线、机车车辆的适应性展开技术可行性分析,并提出了强化改造建议.编组数量都为64辆时,27 t轴重的列车比23 t轴重的列车年均增加371万元利润.经济新常态下,既有线开行27 t轴重通用货车对于提高路网运输能力以及充分利用线路能力具有重要意义. 相似文献
72.
Asia-Pacific Financial Markets - In this study, we find that Hoover’s scale-free forecast accuracy metric MAD/MEAN is only recommended when the coefficient of variation (c.v.) is small. Using... 相似文献
73.
区域中心城市创新生态圈以生物学为隐喻,注重发挥创新主体的能动作用,能够放大区域中心城市发展优势。在回顾创新生态圈理论渊源的基础上,界定区域中心城市创新生态圈内涵,明确创新生态圈要素构成;以企业聚集发展为逻辑起点,探讨区域中心城市创新生态圈生态特征;基于生态学、创新理论等跨学科知识,构建区域中心城市创新生态圈演进模型,探究其运行机制。研究认为,区域中心城市创新生态圈具有开放式协同、动态自调节、多样性共生、自组织演化等生态特征,其运行机制由协同共生机制、风险识别与防控机制、利益分配机制和环境匹配机制共同组成。 相似文献
74.
75.
In this paper we assess overall accuracy in survey self-reports on giving to charitable organizations, direction of bias in
self-reports, and the influence of this bias on relationships. We compare donations to one specific health charity reported
in the Giving in the Netherlands Panel Study 2003 with donations recorded in the database (n = 191). We find that (a) reported donations are significantly higher than recorded donations; (b) reported amounts contributed
are correlated very strongly with recorded contributions; (c) differences between amounts reported and amounts recorded are
positively related to education, religious affiliation, and the tendency to social desirability, and negatively to household
income. This suggests that effects of education are overestimated and effects of income and religious affiliation are underestimated
using self-reports on donations rather than archival records. 相似文献
76.
77.
Shortfall aversion reflects the higher utility loss of spending cuts from a reference than the utility gain from similar spending increases. Inspired by Prospect Theory's loss aversion and the peak‐end rule, this paper posits a model of utility from spending scaled by past peak spending. In contrast to traditional models, which call for spending rates proportional to wealth, the optimal policy in this model implies a constant spending rate equal to the historical peak when wealth is relatively large. The spending rate increases when wealth reaches a model‐determined multiple of peak spending. In 1926–2015, shortfall‐averse spending is smooth and typically increasing. 相似文献
78.
Never selling stocks is optimal for investors with a long horizon and a realistic range of preference and market parameters, if relative risk aversion, investment opportunities, proportional transaction costs, and dividend yields are constant. Such investors should buy stocks when their portfolio weight is too low and otherwise hold them, letting dividends rebalance to cash over time rather than selling. With capital gains taxes, this policy outperforms both static buy‐and‐hold and dynamic rebalancing strategies that account for transaction costs. Selling stocks becomes optimal if either their target weight is low or intermediate consumption is substantial. 相似文献
79.
While voices in the comparative urbanism literature call for researchers to approach comparison with more experimental and critical methodologies, there remains no consensus on how to design and realize these studies. This essay examines the implications of comparative urbanism for researching the ‘Asian City'. Given the critique of existing modes of comparison embedded in recent calls for a new comparative urbanism, researchers are faced with a number of pressing questions: How do we approach this ‘regional' topic in a way that both resists categorizing the ‘Asian City' as an exotic ‘other', elevating it onto a mythical pedestal, yet appreciates its differences, localisms and unique ‘cosmopolitan vernacular' (Clifford, 1997; Werbner and Modood, 1997)? This essay thus highlights the multiple challenges of applying the comparative lens to the ‘Asian City', arguing that broader conceptualizations of the ‘Asian City' help to address the dangers in isolating Asian research into its own canon of parochial urban theory and offering a greater diversity of possibilities for justifying case selection in comparative approaches. In doing so, we hope that this essay responds to the comparative turn by illuminating to some extent its inherent complexity and methodological challenges. 相似文献
80.
Journal of Business Ethics - In this study, we draw on moral cleansing theory to investigate the consequence of unethical pro-organizational behavior (UPB) from the perspective of the actors.... 相似文献