全文获取类型
收费全文 | 8979篇 |
免费 | 740篇 |
国内免费 | 15篇 |
专业分类
财政金融 | 1516篇 |
工业经济 | 337篇 |
计划管理 | 1230篇 |
经济学 | 4279篇 |
综合类 | 98篇 |
运输经济 | 18篇 |
旅游经济 | 16篇 |
贸易经济 | 495篇 |
农业经济 | 835篇 |
经济概况 | 910篇 |
出版年
2024年 | 18篇 |
2023年 | 117篇 |
2022年 | 76篇 |
2021年 | 136篇 |
2020年 | 373篇 |
2019年 | 433篇 |
2018年 | 267篇 |
2017年 | 361篇 |
2016年 | 286篇 |
2015年 | 311篇 |
2014年 | 602篇 |
2013年 | 841篇 |
2012年 | 669篇 |
2011年 | 928篇 |
2010年 | 641篇 |
2009年 | 569篇 |
2008年 | 582篇 |
2007年 | 662篇 |
2006年 | 464篇 |
2005年 | 324篇 |
2004年 | 203篇 |
2003年 | 184篇 |
2002年 | 95篇 |
2001年 | 47篇 |
2000年 | 45篇 |
1999年 | 75篇 |
1998年 | 97篇 |
1997年 | 100篇 |
1996年 | 76篇 |
1995年 | 31篇 |
1994年 | 38篇 |
1993年 | 16篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1985年 | 8篇 |
1984年 | 12篇 |
1983年 | 17篇 |
1982年 | 11篇 |
1981年 | 1篇 |
1980年 | 4篇 |
1979年 | 4篇 |
1978年 | 3篇 |
1975年 | 1篇 |
排序方式: 共有9734条查询结果,搜索用时 15 毫秒
31.
Peter Funk 《Journal of Economic Theory》2008,138(1):211-236
A perfectly competitive vintage-knowledge model of Schumpeterian growth is introduced to study the relation between growth, technology-lifetime, entry, and productivity-dispersion. The incentive to innovate is generated by the productivity-dispersion (latent in traditional vintage models) between new and old plants, rather than by monopoly rents. The model has a unique steady-state REE with endogenous growth. The endogenous extent of entry constitutes a buffer, dampening the effect of research-efficiency and completely neutralizing the effect of population size or population growth rates on per-capita income levels and growth rates. Variations of research-efficiency lead to a negative relation between growth and vintage-lifetime and a non-monotonic relation between growth and productivity-dispersion. 相似文献
32.
philippe burger lizelle janse van rensburg 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2008,76(2):291-297
The question this paper investigates is whether or not different metropolitan areas each constitute a separate housing market or whether or not there is a single South African housing market. Theory on the Law of One Price suggests that if products or geographic areas belong in the same market, their absolute prices must converge, so that their relative prices are stationary. By using cross-sectional time series data of five metropolitan areas, the paper tests for the Law of One Price by applying the Im, Pesaran and Shin panel unit root test. The paper finds strong evidence of convergence in large middle-segment house prices and weaker support for convergence in medium middle-segment house prices. In addition, the paper finds no evidence for convergence in small middle-segment house prices. This suggests the existence of a national market for large and possibly middle-segment houses in metropolitan areas, but separate metropolitan markets for small middle-segment houses. In addition, the paper estimates the speed of convergence and finds that large middle-segment house prices converge within two to seven quarters, while the speed of convergence for medium middle-segment house prices in three of the five areas is five to eight quarters. 相似文献
33.
We empirically investigate the interactions among hedging, financing, and investment decisions. We argue that the way in which hedging affects a firm's financing and investing decisions differs for firms with different growth opportunities. We find that high growth firms increase their investment, but not leverage, by hedging. However, we also find that firms with few investment opportunities use derivatives to increase their leverage. 相似文献
34.
Andrew Barnes 《Journal of Agricultural Economics》2008,59(2):370-376
Within the UK there has been a lack of studies of technical efficiency at the Scottish level. This note compares the results obtained using Scottish data with a recent study by Hadley [Journal of Agricultural Economics (2006) Vol. 57, pp. 81–100] for English and Welsh farms. Four major sectors are investigated, namely: (i) cereals, (ii) dairy, (iii) sheep and (iv) beef over the period 1989 to 2004. Some distinct differences in efficiencies, returns to scale and causes of efficiency are found. 相似文献
35.
The use of derivatives to infer future exchange rates has long been a subject of interest in the international finance literature. With the recent currency crises in Mexico, Southeast Asia, and Brazil, work on exchange rate expectations in emerging markets is of particular interest. For some emerging markets, foreign equity options are the only liquid exchange‐traded derivatives with currency information embedded in their prices. Given that emerging markets sometimes undergo currency realignment with discrete jumps in their exchange rate, estimation of risk‐neutral probability density functions from foreign equity option data provides valuable evidence concerning market expectations. To illustrate the use of foreign equity options in estimating market beliefs, we consider Telmex options around the 1994 peso devaluation and find evidence that markets anticipated the change in the Mexican government's foreign exchange policy. 相似文献
36.
We investigate why new, high-risk technologies can attract excessive and often unprofitable investment. We develop an equilibrium model in which rational, risk-averse agents overinvest in a risky technology, possibly to the point that its expected return is negative. Overinvestment results from relative wealth concerns which arise endogenously from the imperfect tradability of future endowments. Competition over future consumption leads to an indirect utility for wealth with “keeping up with the Joneses” properties that can induce herding. Because overinvestment increases with the risk of the technology, our model can explain why new, risky technological innovations may promote investment bubbles. 相似文献
37.
We show that business education/occupations have expanded and that technical education/occupations have contracted in the Czech Republic and Poland since 1990. We interpret these changes as an adjustment necessary for their transition to a market economy. We do not find the same pattern in Hungary, which we attribute to the earlier timing of its transition. We construct an aggregate model in which labour reallocates in response to changing demand structure. When calibrated with the Czech and Polish data, the model generates a large movement of workers with technical education and experience into business occupations in the early 1990s. The discounted sum of output loss due to the gap between the demand structure and the composition of existing human capital amounts to between 8 and 40 percent of 1990 GDP. 相似文献
38.
Patterns of plant adjustment 总被引:1,自引:0,他引:1
Plutarchos Sakellaris 《Journal of Monetary Economics》2004,51(2):425-450
39.
Tina Hviid Rydberg 《Finance and Stochastics》1997,1(3):251-257
Simple sufficient conditions for the existence of a unique equivalent martingale measure are provided. Furthermore, these
conditions give us a handle on situations where an equivalent martingale measure cannot exist. The existence of a unique equivalent
martingale measure is of relevance to problems in mathematical finance. Two examples of models for which the question of existence
was unresolved are studied. By means of our results existence of a unique equivalent measure up to an explosion time is proved. 相似文献
40.
Corporate investment myopia: a horserace of the theories 总被引:3,自引:0,他引:3
This paper tests two theories of corporate investment myopia which predict a distortion in investment policy with respect to the standard net present value rule. The theories are confronted with the empirical evidence, allowing the theories to compete to explain investment behavior. Research and development expense is used to proxy for long-term investment in a pooled, cross-sectional time-series regression. I find that research and development expense is decreasing in the age of the Chief Executive Officer. Results are consistent with the hypothesis that agency costs are lower when the firm invests myopically, rather than follow a standard net present value rule. 相似文献