全文获取类型
收费全文 | 15098篇 |
免费 | 100篇 |
专业分类
财政金融 | 3089篇 |
工业经济 | 1082篇 |
计划管理 | 2593篇 |
经济学 | 3137篇 |
综合类 | 154篇 |
运输经济 | 110篇 |
旅游经济 | 222篇 |
贸易经济 | 2385篇 |
农业经济 | 628篇 |
经济概况 | 1784篇 |
信息产业经济 | 2篇 |
邮电经济 | 12篇 |
出版年
2024年 | 86篇 |
2021年 | 93篇 |
2020年 | 211篇 |
2019年 | 270篇 |
2018年 | 342篇 |
2017年 | 338篇 |
2016年 | 317篇 |
2015年 | 217篇 |
2014年 | 338篇 |
2013年 | 1604篇 |
2012年 | 409篇 |
2011年 | 487篇 |
2010年 | 442篇 |
2009年 | 459篇 |
2008年 | 417篇 |
2007年 | 379篇 |
2006年 | 343篇 |
2005年 | 285篇 |
2004年 | 284篇 |
2003年 | 285篇 |
2002年 | 289篇 |
2001年 | 293篇 |
2000年 | 303篇 |
1999年 | 312篇 |
1998年 | 311篇 |
1997年 | 269篇 |
1996年 | 230篇 |
1995年 | 242篇 |
1994年 | 247篇 |
1993年 | 255篇 |
1992年 | 278篇 |
1991年 | 268篇 |
1990年 | 207篇 |
1989年 | 194篇 |
1988年 | 175篇 |
1987年 | 171篇 |
1986年 | 174篇 |
1985年 | 257篇 |
1984年 | 262篇 |
1983年 | 252篇 |
1982年 | 220篇 |
1981年 | 202篇 |
1980年 | 180篇 |
1979年 | 170篇 |
1978年 | 161篇 |
1977年 | 143篇 |
1976年 | 131篇 |
1975年 | 145篇 |
1974年 | 108篇 |
1973年 | 106篇 |
排序方式: 共有10000条查询结果,搜索用时 24 毫秒
151.
152.
S. J. Tol Richard 《Environmental and Resource Economics》1995,5(4):353-374
It is argued that estimating the damage costs of a certain benchmark climate change is not sufficient. What is needed are cost functions and confidence intervals. Although these are contained in the integrated models and their technical manuals, this paper brings them into the open in order to stimulate discussion. After briefly reviewing the benchmark climate change damage costs, region-specific cost functions are presented which distinguish tangible from intangible losses and the losses due to a changing climate from those due to a changed climate. Furthermore, cost functions are assumed to be quadratic, as an approximation of the unknown but presumably convex functions. Results from the damage module of the integrated climate economy modelFUND are presented. Next, uncertainties are incorporated and expected damages are calculated. It is shown that because of convex loss functions and right-skewed uncertainties, the risk premium is substantial, calling for more action than analysis based on best-guess estimates. The final section explores some needs for further scientific research. 相似文献
153.
\"This paper examines the determinants of regional migration [in the United States] in the 1980s using a place-to-place migration model in which migration flows depend upon the relative economic opportunities in the origin and destination regions. Using the results of the model, we then examine the potential role for migration in diffusing the economic pressures associated with disparate regional economic growth. Although the results reinforce the notion that divergent regional growth was an impetus to migration in the 1980s, estimates of the employment status of movers suggest that the true effects of migration on unemployment differentials may be quite small.\" 相似文献
154.
This paper confirms the relative superiority of related-diversification in terms of the financial performance of New Zealand companies, companies which are much smaller and less diverse than those which normally feature in this literature. To facilitate comparisons with other studies, financial performance is measured in three ways: return on equity; return on assets; and sales growth. Other independent variables controlled for are company size; risk; leverage; technological opportunity; and industry concentration. The effective rates of protection afforded manufacturing industries (export subsidies and import tariffs) are also confirmed as having had some positive bearing on company performance. 相似文献
155.
An analytical framework for practitioners and researchers to use in managing emerging human resource issues is presented. It integrates strategic human resource development activities with the external competitive, public issue environment and the internal needs of organizations. Over two thousand articles were reviewed and grouped to determine the emerging categories of human resource issues demanding attention. Strategic issues management includes issues identification, issue analysis, strategic formulation, and strategy implementation. The HRD professional can use the issue life cycle model as a conceptual framework for strategic issues management to improve HRD effectiveness in the coming years. The framework suggests a need for close cooperation between traditionally externally oriented departments, like public affairs, and the human resources department. 相似文献
156.
This article examines the relationship of the purchasing and design functions in the U.K. defense industry. In particular, it focuses on the role of purchasing and its potential input into the design process. Perhaps the key conclusion of the research is this: With an increasing use by many companies of the concurrent engineering concept, the purchasing function should have greater influence on the design process. For example, as a member of the design team, purchasing should develop a strategy and coordinate the involvement of preferred suppliers in the design process. In the two companies studied, the authors found that the purchasing/design interface existed only at a superficial level, and that purchasing expertise was not being used effectively in the design process. As these companies utilized various concurrent engineering techniques, there was an overwhelming emphasis on the importance of design integrity, to which all other considerations, including purchasing, were secondary. 相似文献
157.
Most American managers have a hard time making sense of Germany. The country has a fraction of the resources and less than one-third the population of the United States. Labor costs are substantially higher, paid vacations are at least three times as long, and strong unions are deeply involved at all levels of business, from the local plant to the corporate boardroom. Yet German companies manage to produce internationally competitive products in key manufacturing sectors, making Germany the greatest competitive threat to the United States after Japan. The seemingly paradoxical nature of the German economy typically evokes one of two diametrically opposed responses. The first is to celebrate the German economy as a \"model\" worth emulating--indeed, as the answer to declining U.S. competitiveness. The alternative, more skeptical response is to question Germany's staying power in a new, more competitive global economy. According to Kirsten Wever and Christopher Allen, the problem with both points of view is that they miss the forest for the trees. Observers are so preoccupied with praising--or blaming--individual components of the German economy that they fail to see the dynamic logic that ties these components together into a coherent system. In their review of recent research on the German business system, Wever and Allen argue that managers can learn an important lesson from Germany. In the global economy, competition isn't just between companies but between entire socioeconomic systems. Germany's ability to design a cohesive economic and social system that adapts continuously to changing requirements goes a long way toward explaining that country's competitive success. 相似文献
158.
Standard models of informed speculation suggest that traders try to learn information that others do not have. This result implicitly relies on the assumption that speculators have long horizons, i.e., can hold the asset forever. By contrast, we show that if speculators have short horizons, they may herd on the same information, trying to learn what other informed traders also know. There can be multiple herding equilibria, and herding speculators may even choose to study information that is completely unrelated to fundamentals. 相似文献
159.
To examine the relationship between participation in a wellness program and the amount of absenteeism and medical claims, seven years of retrospective absenteeism and medical claims records were collected for 207 employees (pre- and postwellness intervention) and entered into a database. A proportional stratified random sample of workers by wellness participation was selected. While there was no significant change in the amount of sick leave taken over time, a log transformation revealed a significant increase in the dollar amount of medical claims over time, particularly for the middle-aged group of employees. This confirms that wellness intervention slowed the rate of increasing claims among middle-aged participants after just three years of wellness intervention. 相似文献
160.