全文获取类型
收费全文 | 20162篇 |
免费 | 620篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3904篇 |
工业经济 | 1339篇 |
计划管理 | 3575篇 |
经济学 | 4938篇 |
综合类 | 228篇 |
运输经济 | 188篇 |
旅游经济 | 340篇 |
贸易经济 | 3356篇 |
农业经济 | 951篇 |
经济概况 | 1885篇 |
邮电经济 | 79篇 |
出版年
2021年 | 160篇 |
2020年 | 324篇 |
2019年 | 446篇 |
2018年 | 552篇 |
2017年 | 634篇 |
2016年 | 570篇 |
2015年 | 346篇 |
2014年 | 532篇 |
2013年 | 2212篇 |
2012年 | 601篇 |
2011年 | 601篇 |
2010年 | 548篇 |
2009年 | 601篇 |
2008年 | 529篇 |
2007年 | 499篇 |
2006年 | 454篇 |
2005年 | 420篇 |
2004年 | 369篇 |
2003年 | 408篇 |
2002年 | 371篇 |
2001年 | 367篇 |
2000年 | 396篇 |
1999年 | 329篇 |
1998年 | 339篇 |
1997年 | 338篇 |
1996年 | 312篇 |
1995年 | 319篇 |
1994年 | 321篇 |
1993年 | 300篇 |
1992年 | 336篇 |
1991年 | 351篇 |
1990年 | 272篇 |
1989年 | 223篇 |
1988年 | 239篇 |
1987年 | 220篇 |
1986年 | 253篇 |
1985年 | 355篇 |
1984年 | 340篇 |
1983年 | 298篇 |
1982年 | 312篇 |
1981年 | 335篇 |
1980年 | 284篇 |
1979年 | 280篇 |
1978年 | 256篇 |
1977年 | 186篇 |
1976年 | 189篇 |
1975年 | 194篇 |
1974年 | 145篇 |
1973年 | 166篇 |
1972年 | 122篇 |
排序方式: 共有10000条查询结果,搜索用时 312 毫秒
1.
Pavlo R. Blavatskyy 《Economics of Transition》2021,29(2):361-365
We collected 469 frontal face images of Ukrainian cabinet ministers who were in office in 2000–2020. For each image, the minister's body mass index was estimated using a computer vision algorithm. The time series of median estimated body mass index of cabinet ministers co-moves over time with two existing measures of corruption – World Bank worldwide governance indicator Control of Corruption, and the discrepancy between the quantity of luxury wristwatches exported from Switzerland to Ukraine (reported by Swiss statistics) and the corresponding quantity imported by Ukraine from Switzerland (reported by Ukrainian statistics). 相似文献
2.
Rodríguez Gabriel Ojeda Cunya Junior A. Gonzáles Tanaka José Carlos 《Portuguese Economic Journal》2019,18(2):107-123
Portuguese Economic Journal - A set of RLS-type models with ARMA and ARFIMA dynamics is estimated and compared in a forecasting exercise with ARFIMA, GARCH and FIGARCH models. It is an extension of... 相似文献
3.
Empirica - In March 2010, the European Commission launched the Europe 2020 strategy ‘for smart, sustainable and inclusive growth’ in the EU. Education is a major pillar of the Europe... 相似文献
4.
We explore the relationship between inequality and entrepreneurial activity. Drawing on cross-sectional data from a largescale survey of the economic conditions of individuals across India, we develop a number of dimensions of inequality to explore empirically how inequality interacts with entrepreneurship, operationalized as self-employment or as employing other people. We find compelling evidence that there are thresholds to becoming self-employed, and even more so to assembling the combinations of resources and personal attributes required to become an employer. Greater inequality leaves more people unable to make the transition to self-employment, leaving casual laboring as the occupation of necessity. At the same time, inequality increases the number of employers in a society, by concentrating resources - particularly land and finance - enough for significant numbers of people to be able to cross this higher threshold. Lastly, greater differentiation into social or religious groups curtails the ability to cross either entrepreneurial threshold, presumably by limiting the extent and benefits of social networks of value for entrepreneurship. 相似文献
5.
Can older managers overcome stereotypes relating age to low competence? We integrate the literature on age and cognitive ability with research on innovation to explore whether—and if so, when—employees' age harms performance and promotability appraisals made by their supervisors. Multisource, time‐lag data from 305 project managers indicate that the negative stereotypes can be explained through decreased innovative behavior. However, older employees are not always seen as poorer performers with less potential to be promoted due to their reduced innovative behavior. Rather, interdepartmental collaboration moderates these effects. Specifically, older employees with low interdepartmental collaboration are less innovative and receive worse performance and promotability appraisals than younger employees, but the “age handicap” vanishes when older employees collaborate with members of other departments. Organizations should foster formal or informal collaboration among units to prevent negative consequences of an aging workforce. 相似文献
6.
7.
8.
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
9.
González-Avella Juan Carlos Lugo Haydée San Miguel Maxi 《Journal of Economic Interaction and Coordination》2019,14(1):203-214
Journal of Economic Interaction and Coordination - This paper explores a situation in which a population split into two groups attempts to achieve the socially efficient outcome of a coordination... 相似文献
10.
Rubén Loaiza‐Maya Michael S. Smith Worapree Maneesoonthorn 《Journal of Applied Econometrics》2018,33(3):332-354
We propose parametric copulas that capture serial dependence in stationary heteroskedastic time series. We suggest copulas for first‐order Markov series, and then extend them to higher orders and multivariate series. We derive the copula of a volatility proxy, based on which we propose new measures of volatility dependence, including co‐movement and spillover in multivariate series. In general, these depend upon the marginal distributions of the series. Using exchange rate returns, we show that the resulting copula models can capture their marginal distributions more accurately than univariate and multivariate generalized autoregressive conditional heteroskedasticity models, and produce more accurate value‐at‐risk forecasts. 相似文献