全文获取类型
收费全文 | 22113篇 |
免费 | 758篇 |
国内免费 | 384篇 |
专业分类
财政金融 | 1416篇 |
工业经济 | 1082篇 |
计划管理 | 4858篇 |
经济学 | 3392篇 |
综合类 | 3872篇 |
运输经济 | 163篇 |
旅游经济 | 513篇 |
贸易经济 | 3502篇 |
农业经济 | 1433篇 |
经济概况 | 3023篇 |
信息产业经济 | 1篇 |
出版年
2024年 | 25篇 |
2023年 | 198篇 |
2022年 | 295篇 |
2021年 | 458篇 |
2020年 | 562篇 |
2019年 | 405篇 |
2018年 | 340篇 |
2017年 | 414篇 |
2016年 | 480篇 |
2015年 | 484篇 |
2014年 | 1358篇 |
2013年 | 1657篇 |
2012年 | 1749篇 |
2011年 | 2398篇 |
2010年 | 1807篇 |
2009年 | 1574篇 |
2008年 | 1798篇 |
2007年 | 1543篇 |
2006年 | 1561篇 |
2005年 | 1101篇 |
2004年 | 782篇 |
2003年 | 640篇 |
2002年 | 445篇 |
2001年 | 418篇 |
2000年 | 231篇 |
1999年 | 123篇 |
1998年 | 73篇 |
1997年 | 61篇 |
1996年 | 35篇 |
1995年 | 32篇 |
1994年 | 29篇 |
1993年 | 36篇 |
1992年 | 15篇 |
1991年 | 10篇 |
1990年 | 6篇 |
1989年 | 4篇 |
1988年 | 11篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 21篇 |
1984年 | 33篇 |
1983年 | 14篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 7篇 |
1978年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 23 毫秒
101.
ABSTRACTCreating free trade zones as a policy to motivate new investment and improve the local economic indicators might be of some benefits. Following of this policy in Iranian major port, however, resulted vice versa by aggravating the current account balance that is higher imports and the same horizon diminished export sums. We derive the micro data of trade for the Iranian major Imam port according to code arrangements of harmonic system (HS), which permits the clustering of different goods categories. Then we extracted the sums of survey data for the years before and after Imam port became free trade zone and applied fixed effect difference in difference (DID) method to capture the heterogeneity of unobserved variables. Our control port of analysis was Rajaee port the policy did not implemented. Results show that just as Imam free port’s Current Account Balance deteriorated by increasing import and dampening of export sums. 相似文献
102.
《Journal of Contemporary Accounting and Economics》2020,16(1):100181
Prior literature documents that corporate boards with female directors produce better governance outcomes than all-male boards. However, female directors constitute the minority on most boards, which precludes majority voting as the mechanism through which they change board decisions. We identify changing the norms of how the board works as this mechanism. Using the market for norms framework, we explain how female directors are effective even without possessing a board majority or other sources of symbolic power, such as hierarchical authority and social gravitas. Empirically, we show that independent female directors, compared to their male counterparts, are more effective at changing board norms (board processes) and improving governance (board outputs). 相似文献
103.
104.
This paper analyses the price gap anomaly in the US stock market (comprised of the DJI, S&P 500 and NASDAQ) covering the period 1928 to 2018. This paper aims to investigate whether or not price gaps create market inefficiencies. Price gaps occur when the current day’s opening price is different from the previous day’s closing price due orders placed before the opening of the market. Several hypotheses are tested using various statistical tests (Student’s t-test, ANOVA, Mann-Whitney test), regression analysis, and special methods, that is, the modified cumulative returns and the trading simulation approaches. We find strong evidence in favour of abnormal price movements after price gaps. We observe that during a gap day prices tend to change in the direction of the gap. A trading strategy based on this anomaly was efficient in that its results were not random, indicating that this market was not efficient. The momentum effect was found to be temporary and no evidence of seasonality in price gaps was found. Lastly, our results were also contrary to the myth that price gaps tend to get filled. 相似文献
105.
This paper provides the first evidence of algorithmic trading (AT) reducing liquidity in the Brazilian equities market. Our results are contrary to the majority of work which finds a positive relationship between AT and liquidity. Using the adoption of a new data center for the B3 exchange as an exogenous shock, we report evidence that AT increased realized spreads in both firm fixed-effects and vector autoregression estimates for 26 stocks between 2017 and 2018 using high-frequency data. We also provide evidence that AT increases commonality in liquidity, evidencing correlated transactions between automated traders. 相似文献
106.
退市难一直是A股的难题,退市率极低。由于退市制度设计缺陷、IPO非市场化及监管不到位等原因,致使“垃圾股”的“壳”价值高,上市公司保“壳”冲动高。在当前IPO加速的背景下,科学合理地提高退市率,积极完善退市制度,使A股形成“有进有出”的良性生态环境是亟待解决的问题。 相似文献
107.
This paper studies conflict in a simple bargaining framework using an evolutionary game-theoretic approach. Our findings suggest that a player does not always regard the winning probability as an acceptable settlement rule. He accepts a division according to winning probability when the destruction caused to him in conflict is more than a threshold, which in turn depends on cost of conflict to the opponent and the size of the population. Further, our analysis shows that the norms with positive weight to disagreement payoff are effective against conflict, and incentivize peace. Contrary to the findings of extant studies carried out in finite population evolutionary game setting, the settlement possibility set is identical under both ESS and Nash equilibrium in our model with settlement norms. 相似文献
108.
This paper investigates how mass media potentially act on preferences for redistribution. Our hypothesis is that media contribute to shaping the value system of a person, which affects support for redistribution. A theoretical model is proposed which combines demand- and supply-driven media bias. On the demand side, the model considers two types of individuals: non-partisan, whose values are influenced by the media, and partisan, who have strong opinions not affected by the media. We assume that although partisan individuals prefer unbiased information, they hold beliefs that they like to be confirmed; therefore, they tend to consume media with an ideological position similar to theirs. On the supply side, we focus on interest groups’ pressure on media coverage. Our results suggest that the anti-equality lobby is willing to pay more than the competing lobby. Moreover, we show that media bias is a decreasing function of the advertising revenues and an increasing function of the relative weight of ideology vs pluralism in individuals’ demand for media. Adding a second media outlet reduces the likelihood of media bias but not its extent. Finally, if both lobbies are active, the two outlets’ ideological positions are polarised. 相似文献
109.
Although the literature underlines the importance of finance in international trade, no prior study has examined the causal links between market power in banking and export performance. Using a world sample over the 1997-2010 period, and accounting for both observed and unobserved country heterogeneity, we find a positive effect of bank market power on exports, especially in high-income countries. We also document that this export-enhancing effect is more potent in informationally opaque markets. Our findings accord with information hypothesis which suggests that market power in banking induces stronger bank-firm relationships which can generate benefits for both borrowers and lenders. Policy interventions should, therefore, promote the supply of relationship lending as a means to mitigate informational asymmetries in the export market. 相似文献
110.
ABSTRACT Firm innovation is embedded in a collaboration network among researchers and a knowledge network composed of knowledge elements; the two networks are decoupled. Guided by social network theory, this study puts forward the definition and the classification of firm dual network structure, probes into the influence of dual network structure on firm performance, and explores the alignment between innovation strategy and firm dual network structure. We conduct an empirical study of 183 listed companies in China from 2004 to 2018. It is found that the four types of dual network structure all have positive impacts on firm performance, and the impact of a collaboration network is slightly higher than that of a knowledge network. Besides, innovation strategy plays a positive moderating role in the relationship between dual network structure and firm performance. Our findings provide new ideas for firms to identify and optimise knowledge and collaboration network structures and match them with innovation strategy to improve performance. 相似文献