全文获取类型
收费全文 | 18615篇 |
免费 | 853篇 |
国内免费 | 339篇 |
专业分类
财政金融 | 2630篇 |
工业经济 | 644篇 |
计划管理 | 2921篇 |
经济学 | 4509篇 |
综合类 | 2765篇 |
运输经济 | 200篇 |
旅游经济 | 210篇 |
贸易经济 | 1958篇 |
农业经济 | 1418篇 |
经济概况 | 2552篇 |
出版年
2024年 | 32篇 |
2023年 | 338篇 |
2022年 | 252篇 |
2021年 | 447篇 |
2020年 | 699篇 |
2019年 | 535篇 |
2018年 | 468篇 |
2017年 | 635篇 |
2016年 | 579篇 |
2015年 | 615篇 |
2014年 | 1164篇 |
2013年 | 1875篇 |
2012年 | 1266篇 |
2011年 | 1582篇 |
2010年 | 1283篇 |
2009年 | 1219篇 |
2008年 | 1385篇 |
2007年 | 1170篇 |
2006年 | 1108篇 |
2005年 | 774篇 |
2004年 | 565篇 |
2003年 | 422篇 |
2002年 | 316篇 |
2001年 | 295篇 |
2000年 | 192篇 |
1999年 | 120篇 |
1998年 | 86篇 |
1997年 | 76篇 |
1996年 | 55篇 |
1995年 | 40篇 |
1994年 | 31篇 |
1993年 | 30篇 |
1992年 | 23篇 |
1991年 | 12篇 |
1990年 | 7篇 |
1989年 | 11篇 |
1988年 | 6篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 23篇 |
1984年 | 31篇 |
1983年 | 22篇 |
1982年 | 12篇 |
1981年 | 3篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
Laura Raisa Miloş Benaissa Chidmi Marius Cristian Miloş 《Applied economics letters》2019,26(16):1369-1372
Although many industries have benefited from advances in data-driven technology, education is making small steps in capitalizing on the huge potential of data systems. Since 2005, the U.S. Federal Government has been making large grants to help states build statewide longitudinal data systems (SLDS) with the goal of improving programme and teacher evaluation and engage in data-driven decision-making. We analyse whether the introduction of SLDSs improved student performance, measured using test scores for math and reading tests for 4th and 8th graders, as well as high school graduation rates. We find no effects of SLDSs on student performance up to 10 years from implementation. However, we find suggestive evidence that these systems may have long-run effects, emphasizing the long-run nature of educational data collection and policy analysis. 相似文献
102.
A study on factors affecting privacy risk tolerance to prevent the spread of COVID-19 in South Korea
《Business Horizons》2021,64(6):735-741
South Korea has been evaluated as a country that is responding well to COVID-19. The Government of the Republic of Korea discloses where, when, and by which means of transportation people confirmed to have the virus have visited. Although disclosure of movement has contributed to flattening the curve and providing timely medical service, concerns about privacy infringement have also been raised. This article determines what factors influence privacy risk tolerance, looking specifically at threat severity, vulnerability, response efficacy, and response cost. We also provide implications for the preparation of better countermeasures for the government to implement. 相似文献
103.
Martin Feldkircher Florian Huber Michael Pfarrhofer 《Scottish journal of political economy》2021,68(3):287-297
The COVID-19 recession that started in March 2020 led to an unprecedented decline in economic activity across the globe. To fight this recession, policy makers in central banks engaged in expansionary monetary policy. This paper asks whether the measures adopted by the US Federal Reserve (Fed) have been effective in boosting real activity and calming financial markets. To measure these effects at high frequencies, we propose a novel mixed frequency vector autoregressive (MF-VAR) model. This model allows us to combine weekly and monthly information within a unified framework. Our model combines a set of macroeconomic aggregates such as industrial production, unemployment rates, and inflation with high-frequency information from financial markets such as stock prices, interest rate spreads, and weekly information on the Fed's balance sheet size. The latter set of high-frequency time series is used to dynamically interpolate the monthly time series to obtain weekly macroeconomic measures. We use this setup to simulate counterfactuals in absence of monetary stimulus. The results show that the monetary expansion caused higher output growth and stock market returns, more favorable long-term financing conditions and a depreciation of the US dollar compared with a no-policy benchmark scenario. 相似文献
104.
Contrary to other markets where underwriters perform a combined role of underwriting and sponsoring in an Initial Public Offering (IPO), IPO issuers in Hong Kong must appoint at least one sponsor in addition to the underwriters. The splitting of the single role of underwriters into two separate ones offers an ideal setting to disentangle the effects of the two roles and to examine which of the two roles—sponsor or underwriter—is more important in explaining IPO underpricing and initial volatility in the Hong Kong equity market. Interestingly, our findings provide supportive evidence that the sponsor reputation does matter in an IPO and it is even more significant than the underwriter reputation in explaining the IPO underpricing phenomenon. Given the recent high-tech fervor, our research goes deeper to examine specifically the role of sponsors on high-tech firms, with results indicating that the reliance on sponsors is higher for traditional issuers than for technology firms. We further discover that sponsors and underwriters are playing substitution roles rather than complementary roles. In order to examine the regulatory policy impact, our research also compares the role of IPO sponsors before and after the launch of the new sponsor regulatory regime in 2013. The empirical findings lend support to our argument that after the launch of the new regulations, public awareness of sponsors is raised, respect towards more reputable sponsor increases, and thus, the role of sponsors becomes more important than before. 相似文献
105.
随着我国市场经济体制改革的不断完善,CPA审计行业所面临的社会环境也因此而产生了重大的变化。伴随着社会对审计人员的严格要求,审计人员的素质也在不断提高。当然,这对CPA这个行业无疑也产生了深深的影响,同时也对行业的专门化也起到了潜移默化的推动作用。因此在本文中,将会立足于注册会计师审计实务,通过具体分析行业专门化的竞争优势和目前的发展趋势,讨论审计行业专门化可能带来的经济后果,并且与多个上市公司的案例相结合,运用案例分析法、经验总结法、描述分析法等方法合理透彻地剖析出目前CPA审计行业所存在的问题,以及对已经存在的问题作出具体解决方案。 相似文献
106.
107.
城市道路下穿铁路框架桥顶进施工的关键是合理控制桥梁主体结构的受力。为了对框架桥顶进施工过程进行受力特性分析,采用Midas有限元软件模拟了框架桥在滑板上开始顶进、框架桥重心即将离开滑板、框架桥顶进即将就位三个施工阶段。结果表明,该框架桥的施工过程是安全可靠的,同时结合工程项目实际给出了顶进施工的注意事项。该方法可用来指导类似工程顶进施工过程的受力分析和施工控制。 相似文献
108.
This article investigates how uncertainty impacts the effect of monetary policy surprises on stock returns. Using high-frequency US data, we demonstrate that stock markets respond more aggressively to monetary policy surprises during periods of high uncertainty. We also show that uncertainty asymmetrically influences the transmission of positive and negative monetary policy surprises to stock market prices. The amplifying effect of uncertainty is found to be stronger for expansionary shocks than for contractionary shocks. Our robustness analysis confirms that financial uncertainty has a significant role in shaping the influence of monetary policy on the stock market. 相似文献
109.
This paper investigates whether female political representation in national parliaments influences climate change policy outcomes. Based on data from a large sample of countries, we demonstrate that female representation leads countries to adopt more stringent climate change policies. We exploit a combination of full and partial identification approaches to suggest that this relationship is likely to be causal. Moreover, we show that through its effect on the stringency of climate change policies, the representation of females in parliament results in lower carbon dioxide emissions. Female political representation may be an underutilized tool for addressing climate change. 相似文献
110.
ABSTRACTThis paper considers the extent to which the monetary policy operations of three major central banks can be regarded as an application of Proportional-Integral-Derivative (PID) control rules. The paper outlines the general PID framework and estimates a series of dynamic models to identify how interest rate policy adjustments are affected by the rate of inflation and the level of macroeconomic activity. The paper examines data for the UK, the USA and the Eurozone. The results suggest that the PID rules can provide a useful theoretical and empirical framework for estimating central bank responses to the inflation and macroeconomic activity variables by improving the explanatory power of the Taylor rule model and determining the effect of the parameters. 相似文献