全文获取类型
收费全文 | 22099篇 |
免费 | 549篇 |
专业分类
财政金融 | 4623篇 |
工业经济 | 1662篇 |
计划管理 | 3565篇 |
经济学 | 4753篇 |
综合类 | 258篇 |
运输经济 | 155篇 |
旅游经济 | 382篇 |
贸易经济 | 3526篇 |
农业经济 | 907篇 |
经济概况 | 2797篇 |
信息产业经济 | 2篇 |
邮电经济 | 18篇 |
出版年
2021年 | 129篇 |
2020年 | 260篇 |
2019年 | 368篇 |
2018年 | 486篇 |
2017年 | 477篇 |
2016年 | 447篇 |
2015年 | 303篇 |
2014年 | 463篇 |
2013年 | 2396篇 |
2012年 | 590篇 |
2011年 | 703篇 |
2010年 | 637篇 |
2009年 | 666篇 |
2008年 | 612篇 |
2007年 | 528篇 |
2006年 | 515篇 |
2005年 | 420篇 |
2004年 | 438篇 |
2003年 | 439篇 |
2002年 | 447篇 |
2001年 | 439篇 |
2000年 | 447篇 |
1999年 | 437篇 |
1998年 | 456篇 |
1997年 | 409篇 |
1996年 | 363篇 |
1995年 | 327篇 |
1994年 | 346篇 |
1993年 | 368篇 |
1992年 | 412篇 |
1991年 | 401篇 |
1990年 | 304篇 |
1989年 | 282篇 |
1988年 | 254篇 |
1987年 | 269篇 |
1986年 | 277篇 |
1985年 | 384篇 |
1984年 | 384篇 |
1983年 | 401篇 |
1982年 | 341篇 |
1981年 | 309篇 |
1980年 | 303篇 |
1979年 | 292篇 |
1978年 | 245篇 |
1977年 | 237篇 |
1976年 | 221篇 |
1975年 | 228篇 |
1974年 | 187篇 |
1973年 | 167篇 |
1972年 | 125篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
31.
The introduction of traffic management schemes has been one response of the National Parks to the problem of ever-increasing car-borne visitors and the consequent damage caused to the rural environment. By reviewing these schemes and by determining and explaining attitudes towards one particular traffic management experiment, the paper aims to deduce lessons for future policy. The analysis, based on two visitor surveys, suggests that the likelihood of success is improved when schemes are integrated, containing both ‘carrot’ and ‘stick’ elements. Since public perceptions are also found to be pivotal to its success, appropriate marketing of a scheme is vital. The paper concludes, however, that to achieve the fundamental objective of greater accessibility with less mobility, a more wide-ranging marketing effort is required intended to engender a sea change in attitude towards both the car and public transport. 相似文献
32.
The study examines the origins of technology important to improving productivity in the food-processing industries. Technology flows were measured both by patents in patent classes closely identified with six food industries, and by a sample of significant food-processing innovations. These data are consistent with the hypothesis that interindustry technology flows are the most significant determinant of productivity improvements in the food industries. These findings solve the enigma that the food-processing industries have enjoyed rapid improvements in productivity despite making very modest investments in research and development. 相似文献
33.
Neuroeconomics: Why Economics Needs Brains 总被引:7,自引:0,他引:7
Colin F. Camerer George Loewenstein Drazen Prelec 《The Scandinavian journal of economics》2004,106(3):555-579
Neuroeconomics uses knowledge about brain mechanisms to inform economic theory. It opens up the “black box” of the brain, much as organizational economics opened up the theory of the firm. Neuroscientists use many tools—including brain imaging, behavior of patients with brain damage, animal behavior and recording single neuron activity. The key insight for economics is that the brain is composed of multiple systems which interact. Controlled systems (“executive function”) interrupt automatic ones. Brain evidence complicates standard assumptions about basic preference, to include homeostasis and other kinds of state‐dependence, and shows emotional activation in ambiguous choice and strategic interaction. 相似文献
34.
We study the optimal investment and consumption problem of a CRRA investor when the drift and volatility of the stock are driven by a correlated factor. The myopic and non‐myopic components of the optimal portfolio process are characterised in terms of the market price of traded and non‐traded risk of the minimax martingale measure. We find that the optimal policies depend crucially on the nature of the agent, aggressive versus conservative, and the market incompleteness, improving versus deteriorating investment opportunities. Furthermore, we show that the original problem cannot be decomposed into a pure consumption and a pure terminal wealth problem, unless the market is complete. 相似文献
35.
The study finds that relative to others, firms pursuing the Prospector-like strategy (high innovation) have lower financial results uncertainty, a more long-term orientation for decision making, and more decentralized control. As well, the tightness of budgetary control is found to be negatively correlated with financial results uncertainty. Thus, we are able to reproduce in our study the result that Prospector type firms have tighter budgetary control, which many have found puzzling previously, and point to the relation between strategy and financial results uncertainty as an explanation for the result.Based on a sample of large firms in Singapore, the study also finds the impact of the 1997–1998 Asian crisis is correlated with the intensity with which the Prospector-like strategy was pursued. 相似文献
36.
37.
This paper investigates the price adjustment and lead-lag relations between returns on five size-based portfolios in the Taiwan stock market. It finds evidence that the price adjustment of small-stock portfolios is not slower than that of large-stock portfolios. Additionally, limited evidence supports a positive leading role of large-stock portfolio returns over small-stock portfolio returns. These two findings are substantially different from the results of previous research on developed markets. 相似文献
38.
Several recent papers have documented the benefits of debtor-in-possession (DIP) financing in the restructuring of firms in Chapter 11. However, the view on benefits is not unanimous and some legal scholars have raised doubts about DIP financing's effects on debt-holders and the possibility of expropriative wealth transfers. In this paper we address this issue by analyzing both stock and bond price data for a comprehensive sample of DIP loans and find significant positive abnormal stock and bond returns at the announcement of DIP loans. Also, we do not find evidence of wealth transfers from junior to senior debt-holders. Further, we examine the DIP loan process in detail and we document important institutional features of DIP loans such as maturity, covenants, fees and interest charges. We find evidence of intense monitoring using covenants. We also find higher fees and charges associated with DIP loans. We argue that overall the results are consistent with the information processing role of financial intermediaries. 相似文献
39.
A. S. Nekrasov S. A. Voronina V. V. Semikashev 《Studies on Russian Economic Development》2008,19(2):136-144
The current progress of electrification in Russia is clearly insufficient compared with G8 countries. At the same time, economy sectors have a high potential for energy saving. The electricity consumption of households depends on their cash income and the growth rate of electricity tariffs. 相似文献
40.