全文获取类型
收费全文 | 28717篇 |
免费 | 338篇 |
专业分类
财政金融 | 4882篇 |
工业经济 | 1838篇 |
计划管理 | 4511篇 |
经济学 | 6634篇 |
综合类 | 638篇 |
运输经济 | 95篇 |
旅游经济 | 221篇 |
贸易经济 | 6501篇 |
农业经济 | 686篇 |
经济概况 | 2429篇 |
信息产业经济 | 45篇 |
邮电经济 | 575篇 |
出版年
2023年 | 62篇 |
2021年 | 64篇 |
2020年 | 151篇 |
2019年 | 198篇 |
2018年 | 2479篇 |
2017年 | 2277篇 |
2016年 | 1433篇 |
2015年 | 257篇 |
2014年 | 350篇 |
2013年 | 1612篇 |
2012年 | 762篇 |
2011年 | 2339篇 |
2010年 | 2102篇 |
2009年 | 1859篇 |
2008年 | 1851篇 |
2007年 | 2171篇 |
2006年 | 436篇 |
2005年 | 710篇 |
2004年 | 759篇 |
2003年 | 857篇 |
2002年 | 576篇 |
2001年 | 338篇 |
2000年 | 306篇 |
1999年 | 252篇 |
1998年 | 276篇 |
1997年 | 250篇 |
1996年 | 238篇 |
1995年 | 181篇 |
1994年 | 177篇 |
1993年 | 209篇 |
1992年 | 196篇 |
1991年 | 184篇 |
1990年 | 160篇 |
1989年 | 133篇 |
1988年 | 140篇 |
1987年 | 120篇 |
1986年 | 148篇 |
1985年 | 213篇 |
1984年 | 229篇 |
1983年 | 194篇 |
1982年 | 189篇 |
1981年 | 178篇 |
1980年 | 178篇 |
1979年 | 181篇 |
1978年 | 132篇 |
1977年 | 121篇 |
1976年 | 117篇 |
1975年 | 95篇 |
1974年 | 113篇 |
1973年 | 78篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
Programme Evaluation with Unobserved Heterogeneity and Selective Implementation: The Mexican PROGRESA Impact on Child Nutrition 总被引:1,自引:0,他引:1
This paper considers the impact of Programa de Educación, Salud y Alimentación ( PROGRESA ), a large Mexican rural anti-poverty programme that had an evaluation sample in which overall treatment was randomly assigned to some communities but not others, on child nutrition. When we examine the impact of PROGRESA based on the presumption of randomized allocations, we find that PROGRESA had no or even a negative impact on child nutrition. However, not all children designated to receive nutritional supplements actually did so. Our preferred estimates – child fixed-effects estimates that control for unobserved heterogeneity that is correlated with access to the supplement – indicate a significantly positive and fairly substantial programme effect of the nutritional supplements on children 12–36 months. They imply an increase of about a sixth in mean growth per year for these children and a lower probability of stunting. Effects are somewhat larger for children from poorer communities but whose mothers are functionally literate. The long-term consequences of these improvements are non-trivial; its impact working through adult height alone could result in a 2.9% increase in lifetime earnings. 相似文献
63.
The 1992–93 recession in the western states of Germany has been attributed, in substantial measure, to the macroeconomic consequences of policies to finance unification. Studies of the costs of unification have not attempted to measure the burden of the recession. We estimate a dynamic, panel model of household incomes using data from the German Socio-Economic Panel (GSOEP) and use it to forecast what these incomes would have been in 1992–94 without a recession. Using a ratio of actual to forecast incomes, we compare the relative burden of the recession across households. Our findings suggest that western households below the median income bore the brunt of the combined impact of unification and the recession of 1992–93.
JEL classification: P3, D3, E3. 相似文献
JEL classification: P3, D3, E3. 相似文献
64.
65.
66.
Maximum efforts in contests with asymmetric valuations 总被引:1,自引:0,他引:1
Efforts may be reduced when players with different valuations participate in a contest. This paper considers the problem of designing a contest to elicit maximum aggregate effort from players with asymmetric valuations. Optimal designs for different classes of contest technologies are computed and characterized. A value weighted contest is optimal in the concave case. In the unconstrained case, the optimal contest is equivalent to a first price all-pay auction with a reserve price. The optimal design discounts the effort of the high valuation player in order to induce him to compete vigorously. 相似文献
67.
John T. Addison Henry W. Chappell Jr. Alberto C. Castro 《Journal of Economics and Business》1986,38(4)
This article examines the responsiveness of real output to the variability of inflation and aggregate demand. In the manner of Lucas (1973), estimates of the output-inflation tradeoff are computed for a large sample of countries. This measure is then correlated with the variances of the inflation rate and the growth rate in nominal income. Because differences in inflation variance (and hence the tradeoff) are viewed as the outcomes of differences in demand variance, correlations between these two variables are also reported. Cross-time and cross-country results provide a good measure of support for Lucas and the notion that attempts to exploit the tradeoff weaken it. 相似文献
68.
Stephanie Stray 《Quality and Quantity》2009,43(1):161-171
That survey research is error prone is not a new idea and different varieties of non-sampling error have been investigated
in the literature as well as consideration being given in many statistics textbooks to the issue of sampling error. The paper
here considers research upon corporate environmental reporting. It compares information provided by corporate environmental
reports with information that survey respondents claim their organization’s environmental report contains. This enables the
accuracy of the claims to be assessed. Consideration is given to two different industries the Water industry and the Energy
industry. Errors due to inaccurate reporting by survey respondents are shown to be relatively infrequent and respondents appear
just about as likely to claim they report information that they do not, in fact, report as to fail to indicate that they report
information that is, in fact, actually reported. 相似文献
69.
70.
John T. Leahy 《Journal of Business Ethics》1986,5(6):465-472
De George's understanding of theology is limited to one of five commonly recognized models of theology, the orthodox model. This model is vulnerable to De George's criticisms. When religious ethics operates out of the revisionist model of theology, however, his criticisms lose their sting. Revisionist religious ethics, moreover, can make a fruitful contribution to business ethics. Such a religious ethic acknowledges the embodiment dimension of business activities, it complements philosophical analysis with the practice of moral discernment, and it recognizes irony as an active component in decision-making.John T. Leahy is an Associate Professor of Religious Studies at DePaul University. 相似文献