全文获取类型
收费全文 | 5613篇 |
免费 | 1006篇 |
国内免费 | 2篇 |
专业分类
财政金融 | 904篇 |
工业经济 | 473篇 |
计划管理 | 1293篇 |
经济学 | 1257篇 |
综合类 | 105篇 |
运输经济 | 118篇 |
旅游经济 | 68篇 |
贸易经济 | 1368篇 |
农业经济 | 356篇 |
经济概况 | 679篇 |
出版年
2024年 | 3篇 |
2023年 | 17篇 |
2022年 | 25篇 |
2021年 | 110篇 |
2020年 | 202篇 |
2019年 | 512篇 |
2018年 | 255篇 |
2017年 | 400篇 |
2016年 | 384篇 |
2015年 | 421篇 |
2014年 | 410篇 |
2013年 | 642篇 |
2012年 | 482篇 |
2011年 | 459篇 |
2010年 | 409篇 |
2009年 | 279篇 |
2008年 | 302篇 |
2007年 | 244篇 |
2006年 | 227篇 |
2005年 | 211篇 |
2004年 | 137篇 |
2003年 | 115篇 |
2002年 | 109篇 |
2001年 | 108篇 |
2000年 | 70篇 |
1999年 | 18篇 |
1998年 | 15篇 |
1997年 | 6篇 |
1996年 | 4篇 |
1995年 | 5篇 |
1993年 | 1篇 |
1992年 | 5篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1988年 | 3篇 |
1987年 | 5篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 5篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1976年 | 3篇 |
1975年 | 3篇 |
排序方式: 共有6621条查询结果,搜索用时 15 毫秒
71.
Production risk,risk aversion and the determination of risk attitudes among Spanish rice producers 总被引:1,自引:0,他引:1
Agricultural production is subject to risk and the attitudes of producers toward risk will influence input choices insofar as these affect production risk. Risk attitudes in turn may be affected by certain socioeconomic characteristics of producers. Using 2004 survey data from a cross‐section of 130 Spanish rice farms, we estimate risk‐aversion coefficients of farmers and investigate the influence of a series of socioeconomic variables on their risk attitudes. Our results show that farmers exhibit risk‐averse behavior and that risk attitudes are related to a series of socioeconomic characteristics. In particular, the belief that the farm will continue after the producer retires is found to increase the degree of risk aversion, while age is found to have nonlinear effects on risk aversion. Off‐farm income, especially from nonagricultural activities, is found to reduce risk aversion. Neither the educational level of the producer nor the presence of dependents on the household is found to have an effect on risk preferences. Regarding the production technology, we find that land, labor, and fitosanitary products are risk‐reducing inputs, whereas capital, seeds, and fertilizer all increase risk. 相似文献
72.
再造我国家电企业的战略管理 总被引:1,自引:0,他引:1
家电业要走出“价格战”的怪圈,必须解决好“战略管理缺失”的问题。在此基础上再造我国家电企业的战略管理,需要认识战略决策的层次性,形成全方位的有效衔接;认识战略决策的适应性,善于应对变革和协调、平衡;依据战略要求及时调整组织结构,以战略和竞争优势为导向营造、调适企业文化。 相似文献
73.
We develop a model of family bargaining to study the impact of the distribution of bargaining power within the family on the choice of nursing homes by families, and on the locations and prices chosen by nursing homes in a Hotelling economy. In the baseline (static) model, where the dependent parent cares only about the location of the nursing home, the markup of nursing homes is increasing in the bargaining power of the dependent parent, and nursing homes are located at the extreme periphery. We compare the laissez‐faire with the social optimum (which involves more central locations of nursing homes), and examine its decentralization in first‐best and second‐best settings. We explore the robustness of our results to introducing a bequest motive in a dynamic overlapping generations model, which allows us to study the joint dynamics of wealth accumulation and nursing home prices. If the bequest motive is strong, the markup is decreasing in the bargaining power of the dependent. However, wealth accumulation, by reducing interest rates, raises markup rates and nursing homes prices. 相似文献
74.
75.
Hongbo Liu Kevin A. Parton Zhang‐Yue Zhou Rod Cox 《The Australian journal of agricultural and resource economics》2009,53(4):485-501
The remarkable economic changes occurring within China since 1978 have resulted in a striking alteration in food consumption patterns, and one marked change is the increasing consumption of meat. Given China’s large population, a small percentage change in per capita meat consumption could lead to a dramatic impact on the production and trade of agricultural products. Such changes have major implications for policy makers and food marketers. This paper concentrates on meat consumption patterns in the home in China. A censored linear approximate almost ideal demand system model was employed in the study, and major economic parameters were estimated for different meat items. Data used in this study were collected from two separate consumer surveys – one urban and one rural in 2005. 相似文献
76.
We examine the exports versus foreign direct investment (FDI) decision under demand uncertainty for an asymmetric cost duopoly. One of the firms can lead entry before demand realization or retain flexibility enjoying an informational advantage. When the time value of information is small and for sufficiently low investment costs, follow‐the‐leader behavior in FDI arises. Relatively high investment (fixed) costs result in follow‐the‐leader exporting behavior. When the time value of information becomes significant, the potential leader will opt for a wait‐and‐see strategy. For intermediate values of investment costs, the efficient firm invests, while the rival chooses to export. 相似文献
77.
本文提出了一种新的混沌扩频序列产生方法。该方法基于神经网络的强大学习能力和副近非线性函数能力,应用具有全局最优的BP改进算法通过训练学习建立起具有混沌性态的优化神经网络模型,利用网络权值调整的灵活性来产生混沌扩频序列。计算机仿真结果表明,该模型产生的混沌扩频序列调整更容易,比基于单一混沌映射能产生更多符合扩频通信要求的扩频序列。 相似文献
78.
79.
Accounting for the Gender Technology Gap Amongst Smallholder Rice Farmers in Northern Ghana 下载免费PDF全文
Victor Owusu Emmanuel Donkor Enoch Owusu‐Sekyere 《Journal of Agricultural Economics》2018,69(2):439-457
Narrowing the gender technology gap in agricultural production has become a critical policy issue in sub‐Saharan Africa. A better understanding of the gender technology gap is essential for policy formulation and programme planning to ensure equity in resource allocation, and household‐level food security in low and middle income countries, such as Ghana. We employ a metafrontier approach to analyse the differences in the efficiency of male and female farmers, recognising the endogeneity of some of the variables in the inefficiency effects model, in particular the credit constraints of the rice farmers under study. Our findings show that while the rice farms themselves are very similar, average yields for male managed farms tend to be significantly higher than female managed farms reflecting higher seeding and fertiliser application rates on male managed farms. However, there is no significant difference between the genders in either land used for rice or total output per farm household. We find some evidence that relative to the metafrontier, male managed farms are less efficient than female managed farms. The results further show gender technology gap amongst the smallholder rice farmers with females’ technology gap ratio being significantly greater than that of males, with females operating on a production frontier closer to the metafrontier. Policies that provide females more access to productive resources and other agricultural services could assist in the generation of relatively higher output. 相似文献
80.