全文获取类型
收费全文 | 3985篇 |
免费 | 159篇 |
国内免费 | 2篇 |
专业分类
财政金融 | 603篇 |
工业经济 | 147篇 |
计划管理 | 876篇 |
经济学 | 768篇 |
综合类 | 20篇 |
运输经济 | 20篇 |
旅游经济 | 34篇 |
贸易经济 | 1187篇 |
农业经济 | 59篇 |
经济概况 | 272篇 |
邮电经济 | 160篇 |
出版年
2023年 | 34篇 |
2022年 | 33篇 |
2021年 | 47篇 |
2020年 | 62篇 |
2019年 | 82篇 |
2018年 | 194篇 |
2017年 | 205篇 |
2016年 | 208篇 |
2015年 | 140篇 |
2014年 | 185篇 |
2013年 | 426篇 |
2012年 | 253篇 |
2011年 | 182篇 |
2010年 | 198篇 |
2009年 | 151篇 |
2008年 | 166篇 |
2007年 | 113篇 |
2006年 | 126篇 |
2005年 | 143篇 |
2004年 | 75篇 |
2003年 | 78篇 |
2002年 | 86篇 |
2001年 | 82篇 |
2000年 | 56篇 |
1999年 | 41篇 |
1998年 | 36篇 |
1997年 | 29篇 |
1996年 | 35篇 |
1995年 | 30篇 |
1993年 | 36篇 |
1992年 | 22篇 |
1990年 | 26篇 |
1989年 | 20篇 |
1988年 | 18篇 |
1987年 | 23篇 |
1986年 | 20篇 |
1985年 | 34篇 |
1984年 | 32篇 |
1983年 | 22篇 |
1982年 | 25篇 |
1981年 | 22篇 |
1978年 | 18篇 |
1977年 | 20篇 |
1976年 | 27篇 |
1975年 | 23篇 |
1974年 | 18篇 |
1973年 | 20篇 |
1972年 | 18篇 |
1971年 | 26篇 |
1970年 | 21篇 |
排序方式: 共有4146条查询结果,搜索用时 15 毫秒
111.
112.
Aylin Büyükkaragöz Murat Bas Duygu Sağlam Şaziye Ecem Cengiz 《International Journal of Consumer Studies》2014,38(6):628-635
The aim of the present study was to investigate consumers' awareness, acceptance and attitudes towards functional foods in Turkey. Eight hundred and eight people participated in this study: aged between 20 and 80 years, 38.5% were male and 61.5% were female. Participants were given a questionnaire and were asked to fill it in by themselves to minimize the influence of the interviewer. Results indicated that socio‐demographic characteristics such as age, education level and income level are important indicators of consumers' awareness and consumption of functional food. The results show that the female respondents were 2.987 times more aware of functional food than the male respondents. Similarly, the likelihood of respondents having awareness of functional food was 1.431 times greater among those who had a higher educational level than among those with a lower educational level. Consumers who used vitamin supplements were 1.228 times more aware of functional food than other consumers. The results show that older respondents were 3.395 times more aware of functional food than younger respondents. Respondents with a history of familial diseases were more likely than others to have consumed margarine with plant sterol, fruit juices fortified with vitamin C, and breakfast cereals fortified with vitamins and minerals. Those with a diet‐related problem were more likely to have consumed cholesterol‐lowering products than those without a problem. As a conclusion, this study has shown that socio‐demographic characteristics such as age, education and income levels, and prices are important indicators that influence consumers' awareness and consumption of functional food. These results suggest that this type of knowledge could affect consumers' interest in functional foods, and therefore educational strategies might be necessary to encourage the consumption of functional foods. 相似文献
113.
114.
115.
116.
Bahadır Yüzbaşı Mohammad Arashi S. Ejaz Ahmed 《Revue internationale de statistique》2020,88(1):229-251
In this study, we suggest pretest and shrinkage methods based on the generalised ridge regression estimation that is suitable for both multicollinear and high-dimensional problems. We review and develop theoretical results for some of the shrinkage estimators. The relative performance of the shrinkage estimators to some penalty methods is compared and assessed by both simulation and real-data analysis. We show that the suggested methods can be accounted as good competitors to regularisation techniques, by means of a mean squared error of estimation and prediction error. A thorough comparison of pretest and shrinkage estimators based on the maximum likelihood method to the penalty methods. In this paper, we extend the comparison outlined in his work using the least squares method for the generalised ridge regression. 相似文献
117.
ABSTRACT Land market regulations are often justified by the assumption that activities of foreign and non-agricultural investors drive up prices in domestic land markets. However, empirical knowledge about the dynamics of agricultural land prices across borders is sparse. Using the German reunification as a natural experiment, we study the effect of the former inner German border on the dynamics of agricultural land prices in East and West Germany. We apply a land price diffusion model with an error correction specification to analyse spatial agricultural land markets. A novel feature of our model is its ability to distinguish price diffusion within states and across state borders. We provide evidence for a persistent border effect given that the fraction of spatially integrated counties is larger within states than across the former border. Moreover, we observe non-significant error correction terms for many counties along the former border. From a policy perspective, it is striking to realize that even 25 years after German reunification, pronounced land price differences persist. It is quite likely that price diffusion through existing borders within the EU would take even more time given language barriers, different institutional frameworks, and information asymmetries between domestic and foreign market participants. 相似文献
118.
Lara Cathcart Nina M. Gotthelf Matthias Uhl Yining Shi 《European Financial Management》2020,26(2):261-287
We explore the impact of media content on sovereign credit risk. Our measure of media tone is extracted from the Thomson Reuters News Analytics database. As a proxy for sovereign credit risk we consider credit default swap (CDS) spreads, which are decomposed into their risk premium and default risk components. We find that media tone explains and predicts CDS returns and is a mixture of noise and information. Its effect on risk premium induces a temporary change in investors’ appetite for credit risk exposure, whereas its impact on the default component leads to reassessments of the fundamentals of sovereign economies. 相似文献
119.
Nina Rosenbusch Michael Gusenbauer Isabella Hatak Matthias Fink Klaus E. Meyer 《Journal of Management Studies》2019,56(1):203-233
Innovation offshoring (IO) has become a widespread management practice. Yet, evidence on the performance implications is inconsistent, and scattered across disciplines and contexts. We argue that the benefits firms can derive from IO depend on the institutional environment at home. Drawing on recent work on institutional theory in international business, we explore institutions that facilitate reverse knowledge transfer and/or institutional arbitrage with respect to innovation‐related activities. The results of our meta‐analysis that synthesizes evidence from 48 samples show that IO is related positively to innovation performance. As predicted, this relationship is moderated by differences in the institutional environments across countries. Specifically, when national innovation systems are weak at home, IO appears to enable institutional arbitrage strategy whereas Confucian cultures enable more effective reverse knowledge transfer. However, contrary to our expectations, the beneficial effects of IO appear to have diminished over time. 相似文献
120.