全文获取类型
收费全文 | 50204篇 |
免费 | 924篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 8695篇 |
工业经济 | 3307篇 |
计划管理 | 8283篇 |
经济学 | 11596篇 |
综合类 | 813篇 |
运输经济 | 256篇 |
旅游经济 | 512篇 |
贸易经济 | 9942篇 |
农业经济 | 1706篇 |
经济概况 | 5329篇 |
信息产业经济 | 48篇 |
邮电经济 | 642篇 |
出版年
2021年 | 222篇 |
2020年 | 406篇 |
2019年 | 622篇 |
2018年 | 2911篇 |
2017年 | 2715篇 |
2016年 | 1910篇 |
2015年 | 584篇 |
2014年 | 878篇 |
2013年 | 3585篇 |
2012年 | 1510篇 |
2011年 | 3042篇 |
2010年 | 2727篇 |
2009年 | 2556篇 |
2008年 | 2435篇 |
2007年 | 2736篇 |
2006年 | 961篇 |
2005年 | 1101篇 |
2004年 | 1145篇 |
2003年 | 1259篇 |
2002年 | 936篇 |
2001年 | 780篇 |
2000年 | 744篇 |
1999年 | 610篇 |
1998年 | 698篇 |
1997年 | 630篇 |
1996年 | 636篇 |
1995年 | 539篇 |
1994年 | 552篇 |
1993年 | 532篇 |
1992年 | 591篇 |
1991年 | 579篇 |
1990年 | 512篇 |
1989年 | 403篇 |
1988年 | 396篇 |
1987年 | 439篇 |
1986年 | 437篇 |
1985年 | 591篇 |
1984年 | 614篇 |
1983年 | 572篇 |
1982年 | 501篇 |
1981年 | 495篇 |
1980年 | 485篇 |
1979年 | 489篇 |
1978年 | 350篇 |
1977年 | 302篇 |
1976年 | 277篇 |
1975年 | 278篇 |
1974年 | 236篇 |
1973年 | 228篇 |
1972年 | 161篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
This paper investigates not only the question of whether there is exchange rate pass‐through (ERPT) but also the extent to which the pass‐through is asymmetric or state‐dependent in the BRICS countries. Using monthly data from 1999:M1 to 2019:M12 and non‐linear smooth transition vector autoregressive (STVAR) model, our results provide evidence of period‐specific ERPT between the upper and lower regime periods, governed by the selected transition variables. The results further suggest that the pass‐through of exchange rate is higher when the economy is experiencing large appreciations and expansions as well as large depreciations and recessions. Theimplication for these findings is that ERPT is strongly affected by the state of the economy. 相似文献
22.
23.
This paper studies the expansion of an option price (with bounded Lipschitz payoff) in a stochastic volatility model including a local volatility component. The stochastic volatility is a square root process, which is widely used for modeling the behavior of the variance process (Heston model). The local volatility part is of general form, requiring only appropriate growth and boundedness assumptions. We rigorously establish tight error estimates of our expansions, using Malliavin calculus. The error analysis, which requires a careful treatment because of the lack of weak differentiability of the model, is interesting on its own. Moreover, in the particular case of call–put options, we also provide expansions of the Black–Scholes implied volatility that allow to obtain very simple formulas that are fast to compute compared to the Monte Carlo approach and maintain a very competitive accuracy. 相似文献
24.
25.
We investigate the roots of scientists' perceptions of the impact of their work by examining stable psychological characteristics such as personality traits. An analysis of personality traits highlights the effects of policies related to gender equality, allocation of research time and skills acquisition. It improves our understanding of the conflicts related to scientists’ perceptions of the impact of their research on beneficiaries. For example, conscientiousness increases the perceived impact on clinical beneficiaries, but reduces the perceived impact on industrial beneficiaries. Organizational scientific freedom increases the effects of personality traits on perceived impact on beneficiaries such that scientists affiliated to a university are less likely than colleagues working in other research settings to perceive the simultaneous impact of their work on both industrial and clinical beneficiaries. 相似文献
26.
27.
Studies that simultaneously explore the effects of sensory experience on consumer emotions and behavior are rare. This paper builds a model of buying behavior based on sensory experience, 570 valid questionnaires were obtained from coffeehouse customers. Using structural equation modeling and multiple regression analysis, this paper validates the concept model and verifies that sensory experience is a significant antecedent to buying behavior. This study indicates that certain sensory experiences significantly influence emotion. Emotion also plays a mediating role in the relationship between sensory experience and behavioral intentions. The findings are theoretically and practically profound as they address the relationships among sensory experience, consumer emotions, behavioral intentions, and buying behavior, as well as explore how the five senses affect emotions and buying behavior. This paper concludes by indicating managerial implications and research limitations. 相似文献
28.
29.
Michal Kvasnička Rostislav Staněk Ondřej Krčál 《Journal of Industry, Competition and Trade》2018,18(1):47-58
This paper studies the effect of station density on prices in the retail gasoline market in the Czech Republic. We estimate the impact of the number of competing stations in various driving-distance ranges around each station on prices. We find that station density has a negative effect on prices; the effect decreases with distance and is statistically significant up to six kilometers. This suggests that the retail gasoline market is local rather than national. 相似文献
30.
Prior literature examined reciprocity in the context of value creation. However, research has yet to examine whether reciprocity exists in value sharing. To address this gap, the authors examine retailer’s reciprocal value sharing with its manufacturer in relation to new product introductions. The authors test, via a survey of retail managers, whether reciprocal value sharing is influenced by an interaction of manufacturer’s prior new product success with innovativeness of a manufacturer’s products and the frequency of new product introduction. The results indicate that a retailer’s reciprocal value sharing is greater when the manufacturer historically launched successful new products, and that this effect is decreased with the innovativeness of a manufacturer’s products but increased with the frequency of new product introduction. 相似文献