全文获取类型
收费全文 | 16285篇 |
免费 | 327篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3448篇 |
工业经济 | 1203篇 |
计划管理 | 2724篇 |
经济学 | 3632篇 |
综合类 | 198篇 |
运输经济 | 70篇 |
旅游经济 | 238篇 |
贸易经济 | 2520篇 |
农业经济 | 807篇 |
经济概况 | 1696篇 |
邮电经济 | 77篇 |
出版年
2020年 | 170篇 |
2019年 | 240篇 |
2018年 | 256篇 |
2017年 | 315篇 |
2016年 | 294篇 |
2015年 | 205篇 |
2014年 | 318篇 |
2013年 | 1480篇 |
2012年 | 401篇 |
2011年 | 430篇 |
2010年 | 377篇 |
2009年 | 439篇 |
2008年 | 382篇 |
2007年 | 388篇 |
2006年 | 360篇 |
2005年 | 323篇 |
2004年 | 297篇 |
2003年 | 347篇 |
2002年 | 314篇 |
2001年 | 318篇 |
2000年 | 363篇 |
1999年 | 296篇 |
1998年 | 312篇 |
1997年 | 320篇 |
1996年 | 307篇 |
1995年 | 305篇 |
1994年 | 315篇 |
1993年 | 298篇 |
1992年 | 328篇 |
1991年 | 344篇 |
1990年 | 274篇 |
1989年 | 217篇 |
1988年 | 237篇 |
1987年 | 220篇 |
1986年 | 251篇 |
1985年 | 351篇 |
1984年 | 337篇 |
1983年 | 291篇 |
1982年 | 309篇 |
1981年 | 331篇 |
1980年 | 280篇 |
1979年 | 278篇 |
1978年 | 254篇 |
1977年 | 185篇 |
1976年 | 185篇 |
1975年 | 193篇 |
1974年 | 141篇 |
1973年 | 164篇 |
1972年 | 120篇 |
1971年 | 103篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Consumers often face situations in which information about soldout products is still present in the decision context. This paper demonstrates that the presence of soldout products in the decision environment can prompt consumers to purchase available options and decrease choice deferral. This effect can be explained by two underlying decision processes. First, soldout products may create a sense of urgency for consumers to expedite their purchases, which the authors call an immediacy effect. Second, soldout products may enhance the perceived attractiveness of products similar to the soldout products, which the authors refer to as an informational cascades effect. 相似文献
992.
During 1977, IBM was asked to withdraw from India due to its unwillingnesss to comply with the Foreign Exchange Regulation Act (FERA) of 1973. However, with (1) the signing of Memorandum of Understanding between the U.S. and India, (2) the easing of trade restrictions by the Government of India against foreign firms, (3) the declining value of the U.S. dollar, (4) the slump in the U.S. computer market, (5) the rapid growth in the Indian computer market, and (6) changes in other environmental factors, IBM again began actively seeking and securing new business. By the mid-1980s, IBM had secured a number of large contracts and was on the verge of re-entry into the burgeoning Indian computer market.The purpose of this study is to examine the underlying factors that influence both the divorce and reunification between host country government and the multinational corporation. The study, conducted through personal interviews with chief executives of IBM, government officials, and other knowledgeable persons, examines the social-political aspects of the FERA and its implications for multinationals in India and elsewhere in developing countries. 相似文献
993.
The pricing of initial public offerings: tests of adverse-selection and signaling theories 总被引:20,自引:0,他引:20
We test the empirical implications of several models of IPOunderpricing. Consistent with the winner's-curse hypothesis,we show that in markets where investors know a priori that theydo not have to compete with informed investors, IPOs are notunderpriced. We also show that IPOs underwritten by reputableinvestment banks experience significantly less underpricingand perform significantly better in the long run. We do notfind empirical support for the signaling models that try toexplain why firms underprice. In fact, we find that (1) firmsthat underprice more return to the reissue market less frequently,and for lesser amounts, than firms that underprice less, and(2) firms that underprice less experience bigger earnings andpay higher dividends, contrary to the models' predictions. 相似文献
994.
995.
Bid,ask and transaction prices in a specialist market with heterogeneously informed traders 总被引:1,自引:0,他引:1
The presence of traders with superior information leads to a positive bid-ask spread even when the specialist is risk-neutral and makes zero expected profits. The resulting transaction prices convey information, and the expectation of the average spread squared times volume is bounded by a number that is independent of insider activity. The serial correlation of transaction price differences is a function of the proportion of the spread due to adverse selection. A bid-ask spread implies a divergence between observed returns and realizable returns. Observed returns are approximately realizable returns plus what the uninformed anticipate losing to the insiders. 相似文献
996.
997.
Firm and industry characteristics influencing publications of scientists in large American companies
This study examines the relationship between the volume of scientific and technical publications (papers) produced by industrial scientists, and the characteristics of the corporations in which they work. Specifically, the study examines 1. the relationship between several key financial characteristics of U. S. industrial firms and the production of scientific papers; 2. the relationship between the amount of scientific papers published by industrial scientists and the publication of patents; 3. the relationship between the quality of the scientists employed by U. S. industrial firms and the firms' output of papers and patents. Data from 225 U. S. corporations were collected for the years 1975 through 1983. The corporations chosen for the study all have a history of consistent R and D expenditure. There is a substantial correlation between patenting and the publication of scientific papers although controlling for the size of the corporation reduces the correlation. Large firms, as measured by their annual sales, produce proportionately fewer scientific papers than do small firms. The number of elite scientists in a corporation is more highly correlated with the publication of scientific papers than with patenting. 相似文献
998.
This paper examines the maturation process of firms that enter an industry by constructing new plant and investigates the extent to which improvements in the performance of any entry cohort are the result of a selection process that culls out the most inefficient entrants or of a learning process that allows survivors to improve their performance relative to incumbent firms. Both selection and evolutionary learning are found to affect post-entry performance, but selection per se is a more important contributor to the overall growth of a cohort. 相似文献
999.
1000.