全文获取类型
收费全文 | 27877篇 |
免费 | 618篇 |
专业分类
财政金融 | 4966篇 |
工业经济 | 2067篇 |
计划管理 | 4785篇 |
经济学 | 6466篇 |
综合类 | 296篇 |
运输经济 | 202篇 |
旅游经济 | 404篇 |
贸易经济 | 4871篇 |
农业经济 | 1348篇 |
经济概况 | 2967篇 |
信息产业经济 | 3篇 |
邮电经济 | 120篇 |
出版年
2023年 | 142篇 |
2021年 | 204篇 |
2020年 | 369篇 |
2019年 | 561篇 |
2018年 | 626篇 |
2017年 | 665篇 |
2016年 | 690篇 |
2015年 | 475篇 |
2014年 | 715篇 |
2013年 | 2950篇 |
2012年 | 996篇 |
2011年 | 1020篇 |
2010年 | 887篇 |
2009年 | 1022篇 |
2008年 | 903篇 |
2007年 | 818篇 |
2006年 | 757篇 |
2005年 | 660篇 |
2004年 | 593篇 |
2003年 | 619篇 |
2002年 | 538篇 |
2001年 | 608篇 |
2000年 | 545篇 |
1999年 | 507篇 |
1998年 | 562篇 |
1997年 | 505篇 |
1996年 | 496篇 |
1995年 | 432篇 |
1994年 | 442篇 |
1993年 | 412篇 |
1992年 | 433篇 |
1991年 | 434篇 |
1990年 | 400篇 |
1989年 | 314篇 |
1988年 | 312篇 |
1987年 | 306篇 |
1986年 | 304篇 |
1985年 | 426篇 |
1984年 | 418篇 |
1983年 | 380篇 |
1982年 | 357篇 |
1981年 | 327篇 |
1980年 | 330篇 |
1979年 | 313篇 |
1978年 | 261篇 |
1977年 | 213篇 |
1976年 | 211篇 |
1975年 | 188篇 |
1974年 | 164篇 |
1973年 | 165篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
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
32.
Thomas L. Nordblom David J. Pannell Scott Christiansen Nerses Nersoyan Faik Bahhady 《Agricultural Economics》1994,11(1):29-42
Medic (Medicago spp.) pastures are widely grown in rotation with dryland cereal crops in Mediterranean climate zones of Australia. Attempts since the 1960's to introduce this system to Mediterranean west Asia and north Africa (the native region of medic) have not lead to significant adoption; farmers in the region recognize medic, but as a weed and natural pasture plant. This first detailed economic evaluation of the rotational medic system was conducted using a whole-farm linear programming model based on the agricultural system of north-west Syria. The model represents in detail impacts of rotation on yields, labor requirements of alternative farm activities, availability of family and hired labor, subsistence income requirements, livestock feed sources and uses at different times and a choice of sheep stocking rates. Biological data for the analysis are based on a large six-year cropping and grazing experiment near Aleppo on terra-rossa soil with rainfall mainly in winter and averaging about 330 mm annually. The trial compared a dryland medic-wheat system and traditional two-year rotations of wheat with: fallow, watermelon, lentil and vetch. Results indicate that, given current prices and yields from the trial, medic is less profitable than traditional rotations. The model was used to investigate situations in which medic would be economically preferred. Selection of a medic rotation by the model was found to be particularly sensitive to the area of the farm and the price of labor. On small farms, labor availability per hectare is high, favouring the production of labor intensive crops such as lentil and watermelon. On larger farms, labor costs of these enterprises are substantial, increasing the relative profitability of medic, especially if labor prices increase. Interestingly, the relative desirability of medic is more sensitive to its impact on subsequent wheat crops than to the level of pasture production. We also found that modest increases in the prices of sheep products (especially milk) have a major impact on the economic performance of medic. These insights will allow improved focusing and targeting of future research and extension activities. 相似文献
33.
Although many challenges remain, business ethics is flourishing in North America. Prominent organizations give annual business ethics awards, investments in socially screened mutual funds are increasing, ethics officers and corporate ombudspersons are more common and more influential, and new ideas are being tested in practice. On the academic side, two major journals specializing in business ethics are well-established and other major journals often include articles on business ethics and new organizations emphasizing ethics have been initiated. Within business schools, the number of endowed chairs is growing and the ethics curriculum is expanding. Canada is a major player in the business ethics discipline while business ethics in Mexico is just beginning to emerge as a focus of interest in both the business and academic communities. 相似文献
34.
This paper examines the behavior of the risk premium component of currency forward rates. Analyzing forward rates of one, two and three-month maturity, we find that the power of forward rate as a predictor of future spot rate decreases with the length of contract maturity. Further, we find that the proportion of the variance of the forward premium which is due to the variation of the risk premium is larger than the proportion due to the expected spot rate change for all currencies except for the Canadian dollar. This proportion also increases with the length of maturity. 相似文献
35.
M. Carole Macklin 《心理学和销售学》1994,11(3):291-311
Young children's memory for television advertising is important in order for children to recognize brands in stores and/or to recall the brand name in making a purchase request. Two experiments showed that the use of visual advertising retrieval cue (a green frog as the brand character) improved memory performance and brand evaluations. Study 1 (n = 40) showed promise in the cue's assistance in children's recalling the brand name (cued recall) from the ad memory trace. Study 2 (n = 40) contained multiple exposures to the ad, which resulted in greater free recall and in support for the cue's assistance in better access of the brand name from the ad memory trace (cued recall). Affected ad memory resulted in more favorable brand evaluations and intent to request the brand's purchase. © 1994 John Wiley & Sons, Inc. 相似文献
36.
An examination of the ethical perceptions of business students using Macobby's head/heart traits and a comparison to earlier studies of managers, accountants, and business students is made. The data were collected at three universities that are similar in size, enrollment and degree programs within the College of Business. Results indicate that present day business students are no less ethically inclined than are their business counterparts in previous eras. In general head traits dominated over heart traits, an indication that business schools continued to do a good job emphasizing and developing analytical skills but a poor job of developing the qualities of the heart that are generally associated with ethical behavior. The implications of these findings are discussed. 相似文献
37.
38.
39.
40.
Grace K.M. Wong 《Review of urban and regional development studies : RURDS : journal of the Applied Regional Conference》2002,14(3):217-234
At some stage in every household's family life cycle, the household is likely to make certain decisions with regard to its housing environment. Although the household's housing decisions essentially comprise the decision to move, and the selection of a new residence, the process from which these decisions are derived is very complex because varying circumstances could produce a multitude of different housing decisions. Due to the sheer complexity of the household's housing decision–making process, researchers have generally focused on individual decision–making stages rather than on the process as a whole. This paper therefore attempts to conceptualize the entire household housing decision–making process using theoretical concepts from the economic perspective, and then tests the conceptual model with empirical evidence drawn from the moving population within the multi–racial society in Singapore. 相似文献