全文获取类型
收费全文 | 28530篇 |
免费 | 280篇 |
国内免费 | 30篇 |
专业分类
财政金融 | 4677篇 |
工业经济 | 1523篇 |
计划管理 | 4575篇 |
经济学 | 6317篇 |
综合类 | 895篇 |
运输经济 | 117篇 |
旅游经济 | 217篇 |
贸易经济 | 6229篇 |
农业经济 | 471篇 |
经济概况 | 3192篇 |
信息产业经济 | 45篇 |
邮电经济 | 582篇 |
出版年
2021年 | 128篇 |
2020年 | 135篇 |
2019年 | 186篇 |
2018年 | 2558篇 |
2017年 | 2376篇 |
2016年 | 1492篇 |
2015年 | 296篇 |
2014年 | 406篇 |
2013年 | 1316篇 |
2012年 | 917篇 |
2011年 | 2542篇 |
2010年 | 2290篇 |
2009年 | 1943篇 |
2008年 | 1937篇 |
2007年 | 2235篇 |
2006年 | 429篇 |
2005年 | 699篇 |
2004年 | 721篇 |
2003年 | 805篇 |
2002年 | 462篇 |
2001年 | 245篇 |
2000年 | 225篇 |
1999年 | 161篇 |
1998年 | 186篇 |
1997年 | 164篇 |
1996年 | 164篇 |
1995年 | 120篇 |
1994年 | 127篇 |
1993年 | 141篇 |
1992年 | 159篇 |
1991年 | 160篇 |
1990年 | 115篇 |
1989年 | 114篇 |
1988年 | 100篇 |
1987年 | 111篇 |
1986年 | 136篇 |
1985年 | 157篇 |
1984年 | 134篇 |
1983年 | 163篇 |
1982年 | 135篇 |
1981年 | 125篇 |
1980年 | 140篇 |
1979年 | 126篇 |
1978年 | 94篇 |
1977年 | 109篇 |
1976年 | 102篇 |
1975年 | 100篇 |
1974年 | 92篇 |
1973年 | 74篇 |
1972年 | 62篇 |
排序方式: 共有10000条查询结果,搜索用时 484 毫秒
81.
Keith H. Coble Thomas O. Knight George F. Patrick & Alan E. Baquet 《Review of Agricultural Economics》2002,24(2):309-321
A survey conducted in Mississippi, Texas, Indiana, and Nebraska elicited producers' preferences for various farm policy changes. This permitted examination of the diversity of preferences that single-state studies have not allowed. Five policy choices, including deficiency payments, loan programs, crop insurance, export programs, and disaster payments were examined. Logit model results predicting producer preferences for each of the five dichotomous policy choices are reported. Explanatory variables based on expected utility theory such as risk aversion, price and yield variability, and price–yield correlation are significant in various models. 相似文献
82.
The role of tourism is of vital economic importance, particularly for small countries with a privileged geographical location and favourable weather conditions. This paper examines the importance of tourism as a conditioning factor for higher regional growth in Portugal by employing the conditional convergence hypothesis of Barro and Sala-i-Martin, associated with the endogenous growth theory. The panel data estimation approach provides evidence of the positive impact of tourism (through the accommodation capacity) on the growth in per-capita income among the Portuguese regions, increasing the rate of convergence. Therefore, tourism can be considered as an alternative source for stimulating higher regional growth in Portugal, if the supply characteristics of this sector are improved. 相似文献
83.
84.
85.
Erik Benrud 《Journal of Economics and Finance》2007,31(2):143-165
The demand for and supply of analysts’ opinions in this model yield an equilibrium that demonstrates how the information content
of the opinions reacts to changes in exogenous parameters. The model also shows how changes in the parameters make analysts’
opinions more or less dispersed; for example, a decline in investor risk aversion, a decrease in market volatility, and an
increase in information costs can lead to analysts’ opinions becoming more similar. Recognizing how exogenous factors can
affect the supply and demand of analysts’ opinions gives additional insights into questions concerning what may appear to
be herd behavior by analysts and also the relationship between forecast dispersion and information content. (JEL: G29, C71) 相似文献
86.
87.
Ohne Zusammenfassung
Dipl.-Ing. (univ.) Michael Belau ist Director und Head of Rental Management
Dipl.-Wirtschaftsing. (FH) Michael Schildger ist Vice President und Head of Finance
Dr. Verena Sturm ist Manager Corporate Real Estate Services 相似文献
88.
Anthony Bebbington Denise Humphreys Bebbington Jeffrey Bury Jeannet Lingan Juan Pablo Muoz Martin Scurrah 《World development》2008,36(12):2888
Social movements have been viewed as vehicles through which the concerns of poor and marginalized groups are given greater visibility within civil society, lauded for being the means to achieve local empowerment and citizen activism, and seen as essential in holding the state to account and constituting a grassroots mechanism for promoting democracy. However, within development studies little attention has been paid to understanding how social movements can affect trajectories of development and rural livelihood in given spaces, and how these effects are related to movements’ internal dynamics and their interaction with the broader environment within which they operate. This paper addresses this theme for the case of social movements protesting contemporary forms of mining investment in Latin America. On the basis of cases from Peru and Ecuador, the paper argues that the presence and nature of social movements has significant influences both on forms taken by extractive industries (in this case mining) and on the effects of this extraction on rural livelihoods. In this sense, one can usefully talk about rural development as being co-produced by movements, mining companies, and other actors, in particular the state. The terms of this co-production, however, vary greatly among different locations, reflecting the distinct geographies of social mobilization and of mineral investment, as well as the varying power relationships among the different actors involved. 相似文献
89.
We provide a framework in which we link the valuation and assetallocation policies of defined benefits plans with the lifetimemarginal productivity schedule of the worker and the pensionplan formula. In turn, we examine the retirement policies thatare implied by the primitives of the model and the value ofpension obligations. Our model provides an explicit valuationformula for a stylized defined benefits plan. The optimal assetallocation policies consist of the replicating portfolio independentof the pension liabilities. We show that the worker with retirewhen the ratio of pension benefits to current wages reachesa critical value which depends on the parameters of the pensionplan and the discount rate. Using numerical techniques we analyzethe feedback effect of retirement policies on the valuationof plans and on the asset allocation decisions. 相似文献
90.
The economics of land transfer and title insurance 总被引:3,自引:0,他引:3
In the presence of uncertainty over the title of land (due to fraud or error), a legal system can protect either the current (innocent) owner, or a previous owner who claims title. The predominant system in the United States generally awards title to the latter in the event of legitimate claim. Thus, current owners frequently purchase title insurance to provide indemnification in the event of a loss. In contrast, the Torrens system awards title to the current owner, but provides for indemnification of any legitimate claimants. We evaluate these two systems and argue that if transaction costs are low, both promote efficient assignment of title (according to the Coase Theorem), but if transaction costs are high, the Torrens system is more likely to award title to the party that values it the most (namely, the current possessor). 相似文献