全文获取类型
收费全文 | 18899篇 |
免费 | 580篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3774篇 |
工业经济 | 1278篇 |
计划管理 | 3337篇 |
经济学 | 4603篇 |
综合类 | 201篇 |
运输经济 | 142篇 |
旅游经济 | 311篇 |
贸易经济 | 3062篇 |
农业经济 | 892篇 |
经济概况 | 1801篇 |
邮电经济 | 79篇 |
出版年
2021年 | 136篇 |
2020年 | 295篇 |
2019年 | 370篇 |
2018年 | 455篇 |
2017年 | 581篇 |
2016年 | 485篇 |
2015年 | 308篇 |
2014年 | 457篇 |
2013年 | 2077篇 |
2012年 | 560篇 |
2011年 | 556篇 |
2010年 | 496篇 |
2009年 | 542篇 |
2008年 | 477篇 |
2007年 | 478篇 |
2006年 | 417篇 |
2005年 | 377篇 |
2004年 | 340篇 |
2003年 | 381篇 |
2002年 | 340篇 |
2001年 | 348篇 |
2000年 | 387篇 |
1999年 | 318篇 |
1998年 | 316篇 |
1997年 | 329篇 |
1996年 | 303篇 |
1995年 | 306篇 |
1994年 | 310篇 |
1993年 | 296篇 |
1992年 | 330篇 |
1991年 | 342篇 |
1990年 | 271篇 |
1989年 | 215篇 |
1988年 | 236篇 |
1987年 | 216篇 |
1986年 | 250篇 |
1985年 | 349篇 |
1984年 | 335篇 |
1983年 | 292篇 |
1982年 | 308篇 |
1981年 | 331篇 |
1980年 | 280篇 |
1979年 | 280篇 |
1978年 | 252篇 |
1977年 | 186篇 |
1976年 | 187篇 |
1975年 | 196篇 |
1974年 | 142篇 |
1973年 | 165篇 |
1972年 | 117篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
This research analyzes investors’ activity through social media and these media's influence over the Chicago Board Options Exchange Market Volatility Index (VIX) using a logit model and a fuzzy‐set qualitative comparative analysis (fsQCA). The logit results show that social media sentiment influences stock markets. Meanwhile, the fsQCA results show that the investors’ profile is important for explaining how social media influence the stock market. Particularly, holding period combined with experience in technical investors contributes to avoiding a raise in market risk, whereas for nontechnical investors message sentiment and experience form the combination that contributes to avoid a raise in market risk. 相似文献
952.
953.
To better understand the share of the nonobserved economy (NOE) in the European Union, especially on the PIIGS, we estimate, through the multiple indicators multiple causes model, the path between 1980 and 2013. The model includes (i) the tax burden (disaggregated into direct and indirect taxes), a proxy of regulation burden, the unemployment rate and self-employment as causes of the NOE economy; (ii) the GDP and the labour force participation ratio as indicators of the NOE economy. In particular, the estimated weight of NOE as a percentage of official GDP was always higher in the PIIGS group. 相似文献
954.
Disclosure of financial data disaggregated by business and/or geographic segment is currently being considered by the Accounting Standards Committee. This paper reports the views of a group of preparers and users of segment reports on the segmental reporting issue. Identifying reportable segments is of primary importance if the disaggregated financial data are to have any meaning or value. Yet, the imposition of a rigid and arbitrary set of rules suggesting a single form of presentation is unlikely to gain universal approval. Based on the criteria of the preparers and users interviewed alternative forms of presentation are proposed. 相似文献
955.
956.
This article seeks to inform and enliven the debate on whether or not Britain should join the euro. The central focus of the article involves interviews with two leading economists, Professor Willem Buiter (Chief Economist and Special Counsellor to the President, European Bank for Reconstruction and Development) who strongly supports the case for joining, and Professor Patrick Minford (Professor of Applied Economics, Cardiff Business School) who takes the opposite stance. The article begins with an introduction which places the interviews in context and concludes with a final section summarising the central points of commonality and departure arising in the interviews with Professors Buiter and Minford. 相似文献
958.
Daniel R. Fesenmaier Michael F. Goodchild Stanley R. Lieber 《Leisure Sciences: An Interdisciplinary Journal》2013,35(4):459-476
Abstract Numerous outdoor recreation forecasting studies have included household characteristics as well as aspects of the recreation facilities and accessibility. Only a few studies, however, have included in the prediction equation any measure of the effects of urban milieu on behavior. Four commonly cited surrogates of urban milieu are used to cluster the cities of Illinois into three relatively homogeneous groups of environments. Regression analyses are then undertaken using individual household data, aspects of the recreation facilities patronized by the households, participation, and distance and travel time estimates. Comparisons of the regression analyses indicate that, as a concept, milieu is an important predictor of both the volume of recreation participation and salient features of recreation facilities. 相似文献
959.
960.
The response of trade to a monetary union is a dynamic process. An empirical study of the European monetary union finds that the extensive margin of trade in new goods responded several years ahead of EMU implementation and ahead of overall trade volume. A dynamic rational expectations trade model shows that early entry of new firms in anticipation is explainable as a rational forward-looking response to news. The model helps identify which types of trading frictions are reduced by a currency union, and shows how new entry can be affected by uncertainty about EMU. 相似文献