全文获取类型
收费全文 | 77241篇 |
免费 | 2314篇 |
国内免费 | 1470篇 |
专业分类
财政金融 | 7381篇 |
工业经济 | 3309篇 |
计划管理 | 14650篇 |
经济学 | 14425篇 |
综合类 | 14425篇 |
运输经济 | 484篇 |
旅游经济 | 1095篇 |
贸易经济 | 9677篇 |
农业经济 | 5479篇 |
经济概况 | 10098篇 |
信息产业经济 | 2篇 |
出版年
2024年 | 265篇 |
2023年 | 916篇 |
2022年 | 1080篇 |
2021年 | 1590篇 |
2020年 | 2059篇 |
2019年 | 1444篇 |
2018年 | 1299篇 |
2017年 | 1526篇 |
2016年 | 1639篇 |
2015年 | 2011篇 |
2014年 | 4429篇 |
2013年 | 5174篇 |
2012年 | 6195篇 |
2011年 | 7754篇 |
2010年 | 5764篇 |
2009年 | 5152篇 |
2008年 | 5949篇 |
2007年 | 5609篇 |
2006年 | 5435篇 |
2005年 | 4060篇 |
2004年 | 2869篇 |
2003年 | 2333篇 |
2002年 | 1555篇 |
2001年 | 1377篇 |
2000年 | 884篇 |
1999年 | 475篇 |
1998年 | 278篇 |
1997年 | 268篇 |
1996年 | 199篇 |
1995年 | 123篇 |
1994年 | 107篇 |
1993年 | 96篇 |
1992年 | 67篇 |
1991年 | 57篇 |
1990年 | 45篇 |
1989年 | 35篇 |
1988年 | 21篇 |
1987年 | 14篇 |
1986年 | 15篇 |
1985年 | 177篇 |
1984年 | 199篇 |
1983年 | 139篇 |
1982年 | 101篇 |
1981年 | 58篇 |
1980年 | 73篇 |
1979年 | 48篇 |
1978年 | 36篇 |
1977年 | 23篇 |
1975年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
This paper is focused on the cost of raising capital in Germany. A cross-sectional analysis of flotation cost data for 117 IPOs over the years 1993–1998 is presented. We find average flotation costs to be 7.77 percent of gross proceeds, while underwriting fees average 5.01 percent. Our results extend the literature in two important directions. First, contrary to the conventional economies of scale view we find marginal spreads to be rather constant in gross proceeds and to be higher for more risky and more complex offerings. Fixed costs amount to 5 to 9 percent of underwriting fees. Second, by applying a principal component analysis we find issue size, an issuer risk factor, and an offering method complexity factor to have an economicaly meaningful impact on underwriting fees. 相似文献
22.
Johan Lagerlöf 《The Scandinavian journal of economics》2004,106(1):123-142
The model of public policy studied in this paper has heterogeneous citizens/voters and two public goods: one (roads) chosen directly by an elected policy‐maker, and the other (pollution) stochastically dependent on the amount of roads. Both a one‐country and a two‐country version of the model are analyzed; the latter displays externalities across the countries which create incentives for free riding and strategic delegation. The welfare effects of providing the policy‐maker with information about the relationship between roads and pollution are investigated, and it is shown that more information hurts some—sometimes even all—citizens. In particular, the opportunity not to create an institution for information gathering can serve as a commitment device for a country, although with the unfortunate effect of making the overall outcome even worse. Implications for the welfare effects of “informational lobbying” are also discussed. 相似文献
23.
本文针对电子商务条件下现代物流的新特点和我国物流现状,提出在新的条件下选择适合我国国情的物流模式,即综合物流代理模式。它是由一家在物流管理经验、人才和技术上均有一定优势的企业通过建立一个综合物流代理的管理体系,对电子商务交易中供求双方的所有物流活动进行全权代理的业务活动模式。 相似文献
24.
Brigitte Eierle 《Accounting, Business & Financial History》2005,15(3):279-315
Based on a contingent perspective of accounting change, this paper reviews the historical development of differential reporting in Germany, by drawing on primary and secondary sources. The main objective of the paper is to shed light on the driving forces and main influential parameters that have shaped the existing differential reporting framework. This historical approach supplies interesting insights for the current discussion on differential reporting in Germany produced by the EU Regulation on the application of International Accounting Standards. 相似文献
25.
Using two large samples for 1988 and 1995 we decompose the Gini coefficient of household income according to type of income with the purpose of analyzing reasons for the rapid increase of inequality. The results show that the change in relative size of money income and its changed profile are found to be the major processes behind the rapid increase of income inequality in rural China. Changes in housing allocation and an increased number of retirees in combination with higher benefits have made inequality increase in urban China and in China as a whole. JEL classification: D31, P27. 相似文献
26.
The comparison of true cost of living indices between demographically different households (relative equivalence scale) is argued to be sensitive to the way demographic characteristics enter demand analysis. In particular, parameters reflecting the cost of demographic characteristics at base prices, though themselves do not have welfare (equivalence scale) interpretation, can alter the benchmark from which demographically varying inflation effects are measured. The empirical analysis, based on a rank‐3 demand system applied to UK individual household data, shows that the inflation adjustment of child benefits can vary with the way demographic costs at base period prices are specified. 相似文献
27.
襄樊北站驼峰自动化控制系统于2001年11月28日正式投入运用,根据该系统在运用中出现的问题及产生原因,通过采用自动化驼峰作业预想控制法,将人的作业经验与自动化精确控制相结合,取得了扬长避短充分发挥自动控制作用、提高编组站驼峰作业能力的效果。 相似文献
28.
僧海霞 《四川商业高等专科学校学报》2006,14(1):57-59,64
唐代的法制思想,主要有两大特征,即仁刑恤典和厉行法制。对此,学者们多从正史的角度加以探讨和分析。而从敦煌所出唐代蒙书《百行章》所述内容同样清楚地显示了唐初的法制思想的以上特点。这一研究可以起到补充正史的作用。 相似文献
29.
Cost of equity estimates are compared for three pricing models: the traditional local CAPM, the single (market) factor global CAPM, and the two‐factor global CAPM, with both market and currency index factors. For 2989 US stocks, the average difference in the cost of equity estimates is about 48 basis points between the local CAPM and the single‐factor global CAPM, and is about 61 basis points between the two global models. For 70 developed‐market ADRs, the corresponding average differences are 76 and 47 basis points, respectively. For 48 emerging‐market ADRs, the corresponding average differences are 57 and 70 basis points. 相似文献
30.
Abstract. Economists devote considerable energies towards refining their econometric techniques to overcome difficulties connected with conducting empirical research. Despite advances in technique. it is not clear whether further refinement in this direction is worthwhile for policy purposes. It may be that no further amount of statistical adjustment of inadequate data will increase understanding, and that better data is simply necessary to add to our knowledge. But rarely is sufficient credit paid to new forms of data. In short, econometric technique is emphasized to the neglect of data innovation, as if new data were merely lying about waiting for an ingenious suggestion for use. This paper surveys advances of the last twenty five years in estimating labour supply for policy purposes with a view towards appreciating the relative contribution of both improvements in econometric technique as well as developments of new data.
After briefly detailing the key parameters which economists have sought to estimate, we describe the early 'first generation' research (circa 1970), which is plagued by problems of unobservable variables, measurement errors, truncation and selectivity bias, and non linear budget constraints. 'Second generation' research constitute attempts to resolve one or more of these difficulties, and the respective contribution of econometric technique and new data is acknowledged and assessed, including the contribution of data generated by large scale social experiments in which participants are randomly assigned to different guaranteed income plans and their labour supply behaviour measured. 相似文献
After briefly detailing the key parameters which economists have sought to estimate, we describe the early 'first generation' research (circa 1970), which is plagued by problems of unobservable variables, measurement errors, truncation and selectivity bias, and non linear budget constraints. 'Second generation' research constitute attempts to resolve one or more of these difficulties, and the respective contribution of econometric technique and new data is acknowledged and assessed, including the contribution of data generated by large scale social experiments in which participants are randomly assigned to different guaranteed income plans and their labour supply behaviour measured. 相似文献