全文获取类型
收费全文 | 20982篇 |
免费 | 419篇 |
专业分类
财政金融 | 4294篇 |
工业经济 | 1507篇 |
计划管理 | 3285篇 |
经济学 | 4587篇 |
综合类 | 601篇 |
运输经济 | 132篇 |
旅游经济 | 354篇 |
贸易经济 | 3004篇 |
农业经济 | 947篇 |
经济概况 | 2674篇 |
邮电经济 | 16篇 |
出版年
2021年 | 110篇 |
2020年 | 212篇 |
2019年 | 317篇 |
2018年 | 353篇 |
2017年 | 390篇 |
2016年 | 341篇 |
2015年 | 269篇 |
2014年 | 389篇 |
2013年 | 2188篇 |
2012年 | 532篇 |
2011年 | 620篇 |
2010年 | 551篇 |
2009年 | 557篇 |
2008年 | 594篇 |
2007年 | 478篇 |
2006年 | 408篇 |
2005年 | 390篇 |
2004年 | 404篇 |
2003年 | 409篇 |
2002年 | 429篇 |
2001年 | 426篇 |
2000年 | 460篇 |
1999年 | 383篇 |
1998年 | 408篇 |
1997年 | 412篇 |
1996年 | 366篇 |
1995年 | 341篇 |
1994年 | 351篇 |
1993年 | 405篇 |
1992年 | 394篇 |
1991年 | 374篇 |
1990年 | 306篇 |
1989年 | 269篇 |
1988年 | 248篇 |
1987年 | 251篇 |
1986年 | 272篇 |
1985年 | 373篇 |
1984年 | 411篇 |
1983年 | 386篇 |
1982年 | 356篇 |
1981年 | 367篇 |
1980年 | 353篇 |
1979年 | 357篇 |
1978年 | 275篇 |
1977年 | 284篇 |
1976年 | 251篇 |
1975年 | 221篇 |
1974年 | 216篇 |
1973年 | 186篇 |
1972年 | 137篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
Aaron H. Anglin Jeremy C. Short Will Drover Regan M. Stevenson Aaron F. McKenny Thomas H. Allison 《Journal of Business Venturing》2018,33(4):470-492
We extend the entrepreneurship literature to include positive psychological capital — an individual or organization's level of psychological resources consisting of hope, optimism, resilience, and confidence — as a salient signal in crowdfunding. We draw from the costless signaling literature to argue that positive psychological capital language usage enhances crowdfunding performance. We examine 1726 crowdfunding campaigns from Kickstarter, finding that entrepreneurs conveying positive psychological capital experience superior fundraising performance. Human capital moderates this relationship while social capital does not, suggesting that costly signals may, at times, enhance the influence of costless signals. Post hoc analyses suggest findings generalize across crowdfunding types, but not to IPOs. 相似文献
3.
In this paper, we study consumers with limited memory and examine the effects of their price categorization on the pricing strategies of competing firms. The valuations of consumers are assumed to be heterogeneous. We find that it is possible to observe price dispersion even when each firm charges a single price if the consumers categorize prices non‐optimally. Moreover, we demonstrate that the likelihood of a price dispersion outcome is reduced when consumers with limited memory set up the price categories optimally. These findings suggest that the consumers' limited memory and their sub‐optimal behavior, that is, their inability to choose price categories optimally can be a reason for observed price dispersion. 相似文献
4.
Intereconomics - In the July/August issue of Intereconomics, Ilona Sologoub argued that increasing the cost of war would limit the ability of an authoritarian state to wage a war. Here, Charles D.... 相似文献
5.
Supersaturated designs (SSDs) constitute an important class of fractional factorial designs that could be extremely useful in factor screening experiments. Most of the existing studies have focused on balanced designs. This paper provides a new lower bound for the \(E(f_{NOD})\)-optimality measure of SSDs with general run sizes. This bound is a generalization of existing bounds since it is applicable to both balanced and unbalanced designs. Optimal multi and mixed-level, balanced and nearly balanced SSDs are constructed by applying a k-circulant type methodology. Necessary and sufficient conditions are introduced for the generator vectors, in order to pre-ensure the optimality of the constructed k-circulant SSDs. The provided lower bounds were used to measure the efficiency of the generated designs. The presented methodology leads to a number of new families of improved SSDs, providing tools for directly constructing optimal or nearly-optimal k-circulant designs by just checking the corresponding generator vector. 相似文献
6.
Khat-chewing, a controversial leisure activity within the Somali diaspora in Britain, has received little attention within the academic field of Leisure Studies. This paper reports on ethnographic research to provide insights into the unique locations where young British-Somali men chew khat, exposing the liminal qualities of such localities. The paper begins with an overview of the contentious position khat-chewing occupies within Somali communities in Britain, highlighting reasons why young British-Somali men hide their association with the leisure practice. The discussion that follows considers how young male khat users conceptualise spatial environments, exposing how these locations temporarily produce a dual sense of privacy and sociality. The ambiences of such temporary leisure spaces remain open to the prospect of discovery, resulting in the use of discretionary tactics to maintain a sense of secrecy. In this context, we discuss how khat-chewing offers a sense of cultural identity and belongingness while also marking young British-Somali men as outsiders – even within their own communities. 相似文献
7.
The Role of Ideas in Understanding Industrial Relations Policy Change in Liberal Market Economies 下载免费PDF全文
This paper analyzes the uneven processes underpinning industrial relations policy liberalization in New Zealand, Australia, the UK, and Ireland. Drawing upon 140 elite interviews and building upon ideational comparative political theories, the paper highlights the role of ideas in the policy change process. It identifies how particular ideas can be used to construct policy problems, how these ideas can gain legitimacy through battles with competing ideas, and how policy legacies can influence whether ideas take root. The findings from the comparative case analysis expose a critical difference between “positive legacies” and “negative legacies” to account for different liberalization trajectories. 相似文献
8.
Journal of Financial Services Marketing - Purpose: The aim of this paper is to evaluate the success of a value proposition over time, considering two aspects: customer’s perceived value and... 相似文献
9.
Díaz-Fernández M. Carmen González-Rodríguez M. Rosario Pawlak Marek Simonetti Biagio 《Quality and Quantity》2019,53(5):2421-2438
Quality & Quantity - Family firms (FFs) are the backbone of entrepreneurial fabric in many countries. Management of such businesses is complex because of their features: the overlap between... 相似文献
10.
Hanjo Odendaal Monique Reid Johann F. Kirsten 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2020,88(4):409-434
In this paper, we consider the feasibility of constructing online sentiment indices, using large amounts of media data, as an alternative to the conventional survey method used to create the consumer confidence index in South Africa. A clustering framework is adopted to provide an indication of possible candidate sentiment indices constructed from a combination of different text sources and dictionaries that best mimic the traditional survey-based consumer confidence index from the South African Bureau for Economic Research (BER). The results conclude that it is possible to create an index using sentiment analysis using online editorial data that does resemble the BER’s consumer confidence index. The different media-based sentiment indices (MSI) show a significant level of correlation and co-movement with the BER’s CCI. Impulse responses and cross-correlation functions indicate that the MSI could potentially lead the survey-based method up to two quarters. Furthermore, Granger-causality tests show that the media-based indices are good predictors of future consumer confidence index values. The results provide motivation for further study on the use of sentiment-based techniques and online media data sources to track consumer confidence within an emerging market such as South Africa. 相似文献