全文获取类型
收费全文 | 1715篇 |
免费 | 147篇 |
国内免费 | 2篇 |
专业分类
财政金融 | 933篇 |
工业经济 | 41篇 |
计划管理 | 79篇 |
经济学 | 332篇 |
综合类 | 13篇 |
运输经济 | 3篇 |
旅游经济 | 3篇 |
贸易经济 | 80篇 |
农业经济 | 62篇 |
经济概况 | 318篇 |
出版年
2023年 | 20篇 |
2022年 | 16篇 |
2021年 | 24篇 |
2020年 | 72篇 |
2019年 | 68篇 |
2018年 | 74篇 |
2017年 | 76篇 |
2016年 | 45篇 |
2015年 | 60篇 |
2014年 | 100篇 |
2013年 | 165篇 |
2012年 | 136篇 |
2011年 | 228篇 |
2010年 | 150篇 |
2009年 | 114篇 |
2008年 | 131篇 |
2007年 | 132篇 |
2006年 | 80篇 |
2005年 | 59篇 |
2004年 | 23篇 |
2003年 | 10篇 |
2002年 | 9篇 |
2001年 | 5篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 6篇 |
1995年 | 2篇 |
1994年 | 8篇 |
1993年 | 2篇 |
1985年 | 5篇 |
1984年 | 9篇 |
1983年 | 6篇 |
1982年 | 4篇 |
1981年 | 3篇 |
1980年 | 3篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 1篇 |
排序方式: 共有1864条查询结果,搜索用时 15 毫秒
71.
Alain Gagnon Marc Tremblay Hélène Vézina Jamie A. Seabrook 《Explorations in Economic History》2011,48(3):429-440
We study men's adult mortality and longevity by socio-occupational status during industrialization in Saguenay-Lac-Saint-Jean, Quebec. Data were extracted from the BALSAC database (Université du Québec à Chicoutimi), which comprehensively traces the demographic history of the region since the beginning of the French Canadian settlement in 1840 up to the early 1970s. Using five occupational classes and controlling for year, age at marriage, urban/rural residence, and literacy, we found no evidence for the emergence of a socioeconomic gradient in mortality. At least until the early 1970s, mortality in the region is the lowest for farmers and appears to be driven by occupational risk rather than fundamental social causes. 相似文献
72.
Globalization, industrialization and urbanization in Pre-World War II Southeast Asia 总被引:2,自引:0,他引:2
This article uses new data to analyze the impact on Southeast Asian urbanization of globalization and industrialization in the world economy's core countries between the 1870s and World War II. Dramatic falls in transport costs and free trade, enforced, if necessary, by colonial rule, combined to open vast frontier areas throughout Southeast Asia to global commerce and create a handful of large urban centres. These cities, through linking Southeast Asian primary commodity exporters to world markets, grew predominantly as part of the global economy. Our econometric analysis shows that measures of globalization — in particular industrial production in the world core and international transport costs — are much better predictors of the size of Southeast Asia's main cities than domestic factors such as total population, GDP per capita, land area or government expenditure. 相似文献
73.
The living standards in Korea during the colonial period (1910–1945) have been debated for a long time. We explored this problem using the height of the Hangryu deceased, a dead person who did not have any acquaintances to claim the body. We found that the height of male Hangryu deceased, ages 25 to 30, increased by 2.2 cm during the colonial period. This result is consistent with recent quantitative studies measuring income levels or demographic information. However, questions such as when this growth in height started and what initiated this pattern need further investigation. 相似文献
74.
Alan Swinbank 《Journal of Agricultural Economics》2009,60(3):485-503
The paper outlines EU policy on bioenergy, including biofuels, in the context of its policy initiatives to promote renewable energy to combat greenhouse gas emissions and climate change. The EU’s Member States are responsible for implementing EU policy: thus, the UK’s Renewables Obligation on electricity suppliers and its Renewable Transport Fuel Obligation and road‐fuel tax rebates are examined. It is unlikely that EU policy is in conflict with the WTO Agreement on Agriculture or that on Subsidies and Countervailing Measures, but its provisions on environmental sustainability criteria could be problematic. 相似文献
75.
The objective of this paper is to evaluate the effect of Plant Variety Protection (PVP) on the productive merit/yield increases of US seed varieties. As an example, we use wheat varieties, which are and have been available as both protected and unprotected under PVP from both the public and private sectors. We find evidence that PVP has contributed to the genetic improvement of wheat, using varietal trial data from Washington State. As the private open‐pollinated varieties exist only because of PVP and are higher yielding, these results indicate a clear public benefit from PVP. 相似文献
76.
Johan F.M. Swinnen 《Agricultural Economics》2009,40(Z1):719-732
In this article, I draw lessons from two quasi‐natural experiments (the transition process in former Communist countries and the rapid globalization of food chains) on the optimality of farms and agricultural structures more generally. I argue that (a) the farm structures that have emerged from the transition process are much more diverse than expected ex ante; (b) this diversity is to an important extent determined by economic mechanisms which are influenced by initial conditions and reform policies; (c) non‐traditional farm structures have played an important role during transition because they were optimal to address the specific institutional and structural constraints imposed by the transition process; (d) there is more diversity than often argued in the farms that are integrated in global food chains; (e) endogenous institutional (contracting) innovations in food chains may lock existing farm structures in a long‐run institutional framework; and (f) indicators based on farm structures are not a good measure of welfare effects of the globalization of food chains. 相似文献
77.
78.
Is late really better than never? The farmer welfare effects of pineapple adoption in Ghana
下载免费PDF全文
![点击此处可从《Agricultural Economics》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Export agriculture offers potentially high returns to smallholder farmers in developing countries, but also carries substantial market risk. In this article we examine the intertemporal welfare impact of the timing of a farmer's entry into the export pineapple market in southern Ghana. We examine whether farmers who never cultivated pineapple are better or worse off than farmers who decided to adopt pineapple earlier or later relative to their peers and experienced a significant adverse market shock several years prior to our endline survey. We use a two‐stage least squares model to estimate the causal effect of duration of pineapple farming on farmer welfare. Consistent with economic theory, we find that earlier adoption of the new crop brings greater welfare gains than does later uptake. But we find that the gains to later uptake of pineapple—just before the market shock—are small in magnitude, just 0.1 standard deviations of a comprehensive asset index, indicating that the gains to adoption may be precarious and depend on the context, in particular on the severity of prospective market shocks. 相似文献
79.
Dutch glasshouse firms are facing the introduction of a system of tradable CO2 emission quotas. This paper employs a non‐parametric method for modelling tradable CO2 emissions of Dutch glasshouse firms. The method is capable of generating shifts in CO2 emissions across the sample of firms. Moreover, changes in volumes of outputs produced and inputs used are computed. Results show that firms using a conventional heating technology will be net purchasers of CO2 emissions, whereas firms using more advanced heating technologies will sell part of their emission quota. 相似文献
80.
Resource saving and productivity enhancing impacts of crop management innovation packages in Ethiopia
下载免费PDF全文
![点击此处可从《Agricultural Economics》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Moti Jaleta Menale Kassie Kindie Tesfaye Tilaye Teklewold Pradyot Ranjan Jena Paswel Marenya Olaf Erenstein 《Agricultural Economics》2016,47(5):513-522
Crop management innovations are often not discrete fixed stand‐alone options—and their adoption may imply various combinations and adaptations. This potentially confounds their impact assessment. This article assesses the resource saving and productivity enhancing impacts of a crop management package revolving around minimum tillage in maize‐based farming systems in northwest Ethiopia. An endogenous switching regression model was applied to plot‐ and household‐level survey data collected from 290 rural households operating 590 maize plots during the 2012 production year. Controlling for variations in plot and household characteristics, the average effect of minimum tillage package (minimum tillage package) on maize productivity is 0.44 t/ha. Compared to conventional practice (CP), adoption of the MTP decreased the average male and female labor use in maize production by 14.4 and 8.2 person‐days per ha, respectively. Similarly, MTP adoption decreased draft power use for land preparation by 13.2 pair of oxen‐days per ha. Compared to CP, in general, there is a considerable short‐run maize productivity gain and reduction in labor and draft power use under MTP. 相似文献