全文获取类型
收费全文 | 27049篇 |
免费 | 241篇 |
专业分类
财政金融 | 4704篇 |
工业经济 | 1527篇 |
计划管理 | 4216篇 |
经济学 | 5933篇 |
综合类 | 577篇 |
运输经济 | 111篇 |
旅游经济 | 219篇 |
贸易经济 | 6074篇 |
农业经济 | 414篇 |
经济概况 | 2889篇 |
信息产业经济 | 45篇 |
邮电经济 | 581篇 |
出版年
2020年 | 103篇 |
2019年 | 164篇 |
2018年 | 2539篇 |
2017年 | 2335篇 |
2016年 | 1456篇 |
2015年 | 218篇 |
2014年 | 302篇 |
2013年 | 1189篇 |
2012年 | 714篇 |
2011年 | 2301篇 |
2010年 | 2071篇 |
2009年 | 1784篇 |
2008年 | 1772篇 |
2007年 | 2090篇 |
2006年 | 295篇 |
2005年 | 589篇 |
2004年 | 700篇 |
2003年 | 810篇 |
2002年 | 473篇 |
2001年 | 263篇 |
2000年 | 239篇 |
1999年 | 193篇 |
1998年 | 207篇 |
1997年 | 183篇 |
1996年 | 189篇 |
1995年 | 134篇 |
1994年 | 143篇 |
1993年 | 164篇 |
1992年 | 173篇 |
1991年 | 172篇 |
1990年 | 126篇 |
1989年 | 133篇 |
1988年 | 111篇 |
1987年 | 130篇 |
1986年 | 146篇 |
1985年 | 177篇 |
1984年 | 150篇 |
1983年 | 178篇 |
1982年 | 149篇 |
1981年 | 133篇 |
1980年 | 148篇 |
1979年 | 129篇 |
1978年 | 101篇 |
1977年 | 114篇 |
1976年 | 110篇 |
1975年 | 102篇 |
1974年 | 97篇 |
1973年 | 82篇 |
1972年 | 63篇 |
1971年 | 64篇 |
排序方式: 共有10000条查询结果,搜索用时 484 毫秒
81.
82.
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
83.
84.
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
85.
Consumer Demand For Butter, Margarine and Blends: The Role of Purchase and Household Characteristics
Brian W. Gould 《Revue canadienne d'agroeconomie》1997,45(3):251-266
A U.S. household panel is used to estimate a model of household purchases of butter, margarine and butter/margarine blends. The econometric model accounts for the discrete purchase decisions process and the censored nature of disaggregated commodity demand. Observed market prices are "quality" adjusted for the three commodities investigated based on household and purchase characteristics. Over 90% of the reaction to a price change is found to occur with respect to the decision whether or not to consume. 相似文献
86.
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
87.
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
88.
A conceptual framework of anonymity in Group Support Systems 总被引:2,自引:2,他引:0
Joseph S. Valacich Leonard M. Jessup Alan R. Dennis J. F. Nunamaker Jr. 《Group Decision and Negotiation》1992,1(3):219-241
As the development and use of automated systems for collaborative work grows, the need for a better understanding of these systems becomes more important. Our focus is on one type of system, a Group Support System (GSS) and, in particular, on one important aspect of a GSS—anonymity. A conceptual framework for the study of anonymity in a GSS is presented, which describes the general classes of variables and their relationships. These variables include the factors that influence anonymity in a GSS, types of anonymity, and the effects of anonymity on a message sender, receiver, group process, and outcome. Each of these variables is discussed with working propositions presented for important group process and outcome measures. The objectives of this article are to highlight the importance and complexity of anonymity, to act as a guide for empirical investigations of anonymity, and to influence future GSS development and use. 相似文献
89.
90.
In this paper we offer a method for deciding how to aggregate a set of elementary industries. The method is then applied to the problem of estimating a wage equation that allows for industry-specific effects. Our method explicitly formalizes the trade-off between goodness-of-fit and parsimony implicit in an aggregation problem. By varying the parameter of the assumed loss function, one obtains a whole sequence of aggregation levels. Further, the resulting sequence is consistent; that is, groupings formed at one level of aggregation will never be undone when one aggregates further. 相似文献