全文获取类型
收费全文 | 673篇 |
免费 | 19篇 |
专业分类
财政金融 | 164篇 |
工业经济 | 63篇 |
计划管理 | 104篇 |
经济学 | 109篇 |
综合类 | 11篇 |
旅游经济 | 10篇 |
贸易经济 | 145篇 |
农业经济 | 39篇 |
经济概况 | 45篇 |
邮电经济 | 2篇 |
出版年
2021年 | 8篇 |
2020年 | 11篇 |
2019年 | 8篇 |
2018年 | 16篇 |
2017年 | 13篇 |
2016年 | 6篇 |
2015年 | 12篇 |
2014年 | 15篇 |
2013年 | 85篇 |
2012年 | 20篇 |
2011年 | 25篇 |
2010年 | 11篇 |
2009年 | 25篇 |
2008年 | 22篇 |
2007年 | 20篇 |
2006年 | 16篇 |
2005年 | 17篇 |
2004年 | 17篇 |
2003年 | 15篇 |
2002年 | 21篇 |
2001年 | 12篇 |
2000年 | 19篇 |
1999年 | 14篇 |
1998年 | 7篇 |
1997年 | 14篇 |
1996年 | 9篇 |
1995年 | 10篇 |
1994年 | 6篇 |
1993年 | 9篇 |
1992年 | 21篇 |
1991年 | 9篇 |
1990年 | 7篇 |
1989年 | 10篇 |
1988年 | 7篇 |
1987年 | 12篇 |
1986年 | 8篇 |
1985年 | 10篇 |
1984年 | 14篇 |
1983年 | 11篇 |
1982年 | 13篇 |
1981年 | 11篇 |
1980年 | 9篇 |
1979年 | 10篇 |
1978年 | 3篇 |
1977年 | 15篇 |
1976年 | 5篇 |
1975年 | 6篇 |
1974年 | 8篇 |
1973年 | 6篇 |
1966年 | 2篇 |
排序方式: 共有692条查询结果,搜索用时 15 毫秒
31.
32.
This paper analyzes consumer responses to lighter child-resistant mechanisms using an original sample of 200 households with young children. Results from an in-house placement of lighters indicate that the child-resistant mechanism would diminish consumer care. The child-resistant device reduced risk perceptions, parental concern with lighter safety, the assessed need for precautions, and consumer care. The results provide the most detailed empirical evidence of the mechanisms driving the diminished safety precautions in response to technological improvements in safety. The overall efficacy of the mechanism, however, is sufficient to generate a safety improvement despite the diminished care. 相似文献
33.
Food Aid, Food Prices, and Producer Disincentives in Ethiopia 总被引:1,自引:0,他引:1
Although the short-term aims of food aid are well conceived, strong concerns have been voiced regarding the long-term impacts of such aid on incentives for agricultural producers in recipient countries. This article examines the statistical link between food aid shipments and food prices in Ethiopia over the period 1996–2006. Monthly data from three markets and three commodities are used to estimate a system of seemingly unrelated regression models for food prices. Results indicate that previous year food aid shipments reduce prices in all producer and consumer markets. These effects, however, appear to be limited to the set of internationally traded commodities that are domestically marketed. A recursive regression procedure is used to identify the food aid threshold at which a negative aid effect emerges. Food aid shipments that constitute less than 10% of domestic production appear to be benign, but shipments above this level show signs of being disruptive to local markets. We use a simple policy simulation to argue that production-sensitive targeting, e.g., conditioning food aid on local food production, would help to circumvent disincentive effects. 相似文献
34.
有一部电视卡通《弗莱格》(Fraggle Rock)就吓坏了我。杰拉德·马特:你在瑞典出生,获得过马尔摩艺术学院美术新媒体学位,是吗?娜塔莉·德约博格:是的。 相似文献
35.
Stabilization, adjustment, and the poor 总被引:1,自引:0,他引:1
Gerald K. Helleiner 《World development》1987,15(12)
This paper attempts to survey the recent literature on the impact of stabilization and adjustment programs upon the poor and to consider some of the key issues in the context of a particular equity-oriented low-income country. Tanzania. After looking at some of the approaches of earlier studies, this paper analyzes the effects of restructuring policies, macroeconomic restraint, and strategic policy change. The author then reviews available evidence on the recent experience of Tanzania with external shock, efforts at stabilization, and relations with the IMF.In conclusion, the author argues that in order to better understand their impact on poverty we need more detailed analyses of specific countries' experience with different kinds of macroeconomic imbalance and different short- to medium-term policy responses. However, he does indicate with some certainty that when equivalent external blows impact upon very low-income countries, there must be a presumption that, other things being equal (including the distribution of income), the proportion of households and people pushed over the line into “absolute poverty” will be greater than in middle-income countries. The international community should provide external finance to aid these low-income countries in limiting the negative impact on the poorest. 相似文献
36.
37.
Prabhakar Adhikari Hailu Araya Gerald Aruna Arun Balamatti Soumik Banerjee P. Baskaran 《国际农业可持续发展杂志》2018,16(1):1-28
With continually increasing demand for food accompanied by the constraints of climate change and the availability and quality of soil and water, the world’s farmers are challenged to produce more food per hectare with less water, and with fewer agrochemical inputs if possible. The ideas and methods of the system of rice intensification which is improving irrigated rice production are now being extended/adapted to many other crops: wheat, maize, finger millet, sugarcane, tef, mustard, legumes, vegetables, and even spices. Promoting better root growth and enhancing the soil’s fertility with organic materials are being found effective means for raising the yields of many crop plants with less water, less fertilizer, reduced seeds, fewer agrochemicals, and greater climate resilience. In this article, we review what is becoming known about various farmer-centred innovations for agroecological crop management that can contribute to agricultural sustainability. These changes represent the emerging system of crop intensification, which is being increasingly applied in Asian, African, and Latin American countries. More research will be needed to verify the efficacy and impact of these innovations and to clarify their conditions and limits. But as no negative effects for human or environmental health have been identified, making these agronomic options more widely known should prompt more investigation and, to the extent justified by results, utilization of these methodologies. 相似文献
38.
High transaction costs are detrimental to the efficient operation or existence of markets for inputs and outputs. The cost of information and the costs associated with the search for trade partners, the distance to formal markets and contract enforcement are likely to influence the marketing of food crops. This study hypothesises that the level of income generated from food-crop sales by small-scale farmers in the Impendle and Swayimana districts of KwaZuluNatal is influenced by transaction costs and certain household and farm characteristics. Regression analysis shows that the depth of marketing methods is significantly influenced by transaction cost proxies, such as cooperation with large commercial farmers and ownership of means of transport. Results from a block-recursive regression analysis show that the level of crop income generated is determined by the depth of marketing methods, the size of allocated arable land and off-farm income. Households with lower transaction costs, sizeable allocated land and off-farm income can be expected to generate higher income from food crops. Investment in public goods such as roads, telecommunications and an efficient legal system (to uphold commercial contracts), as well as farmer support services (input supply, extension, marketing information and research), would probably raise farm and non-farm income by reducing transaction costs. This would increase the effective demand for locally produced goods and services, thus contributing to rural employment and livelihoods within rural communal areas. 相似文献
39.
Gerald J.Lobo 《China Journal of Accounting Research》2017,(1):1-7
<正>1.Why carry out accounting research in the banking industry?1.1.Why focus on the banking industry?The banking industry is critically important to national an... 相似文献
40.