全文获取类型
收费全文 | 757篇 |
免费 | 31篇 |
专业分类
财政金融 | 166篇 |
工业经济 | 39篇 |
计划管理 | 138篇 |
经济学 | 175篇 |
综合类 | 7篇 |
运输经济 | 12篇 |
旅游经济 | 14篇 |
贸易经济 | 169篇 |
农业经济 | 24篇 |
经济概况 | 42篇 |
邮电经济 | 2篇 |
出版年
2023年 | 11篇 |
2022年 | 7篇 |
2021年 | 11篇 |
2020年 | 22篇 |
2019年 | 39篇 |
2018年 | 28篇 |
2017年 | 38篇 |
2016年 | 41篇 |
2015年 | 30篇 |
2014年 | 38篇 |
2013年 | 113篇 |
2012年 | 43篇 |
2011年 | 53篇 |
2010年 | 46篇 |
2009年 | 35篇 |
2008年 | 35篇 |
2007年 | 26篇 |
2006年 | 23篇 |
2005年 | 14篇 |
2004年 | 15篇 |
2003年 | 25篇 |
2002年 | 23篇 |
2001年 | 11篇 |
2000年 | 7篇 |
1999年 | 7篇 |
1998年 | 6篇 |
1997年 | 8篇 |
1996年 | 5篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 2篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1978年 | 1篇 |
1977年 | 3篇 |
1976年 | 1篇 |
1959年 | 1篇 |
1939年 | 1篇 |
排序方式: 共有788条查询结果,搜索用时 46 毫秒
781.
In this study, we investigate the cross-section of option-implied tail risks in commodity markets. In contrast to findings from equity markets, left and right tail risks implied by option markets are both large. Commodity-specific variables exert the largest influence on tail risk, while there is no evidence of systematic commodity factors that are linked to tail risk. Additionally, we find strong links to the equity markets, but also comovements to macroeconomic factors. Left or right tail risks are largely independent of variance risk premiums. Finally, both left and right tail risks are priced in the cross-section of commodity futures returns. 相似文献
782.
783.
Teena Rachel Philip Daniela Sanchez Juan Manuel Sanchez 《Journal of Business Finance & Accounting》2023,50(5-6):973-1028
We examine the influence of CEOs’ equity and cash grants’ vesting provisions that are based on (i) accounting performance metrics prepared under US generally accepted principles (GAAP), (ii) non-GAAP performance metrics and (iii) key performance indicators (KPIs) on debt contracts. We find that grants with vesting provisions based on GAAP metrics and KPIs lead to a lower cost of debt, a lower likelihood of collateral requirements and less restrictive covenant terms. In contrast, performance-based grants with non-GAAP vesting provisions lead to a higher cost of debt, a higher likelihood of collateral requirements and more restrictive covenant terms. Supplementary analyses reveal that our results are incremental to other debtholder-friendly features in the CEO contracts, such as grants with debt-related performance measures and CEOs’ inside debt holdings, and robust to alternative variable definitions and specifications. Overall, our results suggest that debtholders understand the differing incentives associated with GAAP, non-GAAP and KPI-based performance measures, and incorporate these differences into debt contracts. 相似文献
784.
This article examines neural network-based approximations for the superhedging price process of a contingent claim in a discrete time market model. First we prove that the α-quantile hedging price converges to the superhedging price at time 0 for α tending to 1, and show that the α-quantile hedging price can be approximated by a neural network-based price. This provides a neural network-based approximation for the superhedging price at time 0 and also the superhedging strategy up to maturity. To obtain the superhedging price process for , by using the Doob decomposition, it is sufficient to determine the process of consumption. We show that it can be approximated by the essential supremum over a set of neural networks. Finally, we present numerical results. 相似文献
785.
We study the multifaceted effects of trade policy shocks on financial markets using a structural vector autoregression identified via event day heteroskedasticity. We find that restrictive US trade policy shocks affect US and international stock prices heterogeneously, but generally negatively. They increase market uncertainty, lower US interest rates, and lead to an appreciation of the US dollar. The effects are significant for several weeks or quarters. Decomposing the trade policy shocks further suggests that trade policy uncertainty dominates tariff level effects. Chinese trade policy shocks against the United States further hurt US stocks. 相似文献
786.
Ricardo Manuel Santos 《Contemporary economic policy》2023,41(2):354-369
In this paper, we aim to determine the importance of psychological pressure on performance in sequential tournaments. We make use of penalty shootouts in soccer and test the presence of first-mover advantage. Shootouts in soccer is a formidable framework because it is a natural experiment where teams compete in a sequence whose order is determined by the random outcome of a coin toss. Using data from all 663 penalty shootouts in all major competitions since first implemented in 1970, we fail to identify statistically significant differences in winning probabilities for teams kicking first or second in the shootout sequence. 相似文献
787.
Lukas Wolf 《International Journal of Consumer Studies》2023,47(6):2270-2304
The proliferation of smartphones, tablets and other digital devices in addition to traditional computers has transformed the Internet into a device-mediated environment. While these devices provide immediate access to similar Internet sources, they differ significantly in their characteristics, such as screen size, operation mode and context of use. As a consequence, behaviours on the Internet along the customer journey vary substantially depending on the device used. To summarize the fast-growing body of research on device-mediated customer behaviour, a systematic, framework-based literature review of 59 articles from the last decade was conducted. Through an examination of the antecedents, decisions and outcomes investigated in the publications, the review presents a conceptual framework that highlights the relation between device characteristics, decision processes and behavioural outcomes. The review further summarizes the theories, contexts and methods employed in the studies and sets an extensive future research agenda. We found that the extant literature lacks comprehensive theories and clear definitions of digital devices in the omnichannel environment. Furthermore, existing findings should be generalized for other contexts (e.g. industries and countries) and validated via the introduction of other research designs and methods. The understanding of device-mediated behaviour and the consequently arising marketing measures remains scarce. Thus, this review advances the comprehension of customer behaviour on the Internet and provides researchers and practitioners with information on the implications for customer experience and omnichannel management. 相似文献
788.
Hiroyuki Takeshima Futoshi Yamauchi Hyacinth O. Edeh Manuel A. Hernandez 《Agricultural Economics》2023,54(2):234-255
Modern cooling technologies that utilize renewable energy sources have been increasingly recognized as promising tools to address various challenges emerging in progressively complex agrifood systems in developing countries. Knowledge gaps about the actual impacts of these technologies in developing countries remain, especially in Africa south of the Sahara (SSA). This study fills this knowledge gap by providing evidence from the evaluation of recent interventions in northeast Nigeria in which seven small solar-powered cold storages were installed across seven horticulture markets. Combinations of difference-in-difference (DID) and variants of propensity-score-based methods suggest that cold storage significantly increased horticulture sales volumes and revenues of market agents. Back-of-the-envelope calculations indicate that increased net revenues for market agents may be sufficiently large to recoup cold storage investments and operating costs within a reasonable time frame. Using cold storage also reduced the share of food loss. It lengthened the products' shelf-life while raising prices received by market agents and farmers, which were associated with improved product quality, expanded value-adding activities by market agents, and increased use of advance payments. 相似文献