全文获取类型
收费全文 | 2295篇 |
免费 | 49篇 |
专业分类
财政金融 | 349篇 |
工业经济 | 124篇 |
计划管理 | 322篇 |
经济学 | 612篇 |
综合类 | 55篇 |
运输经济 | 15篇 |
旅游经济 | 22篇 |
贸易经济 | 379篇 |
农业经济 | 159篇 |
经济概况 | 306篇 |
邮电经济 | 1篇 |
出版年
2021年 | 16篇 |
2020年 | 32篇 |
2019年 | 44篇 |
2018年 | 66篇 |
2017年 | 76篇 |
2016年 | 64篇 |
2015年 | 30篇 |
2014年 | 63篇 |
2013年 | 234篇 |
2012年 | 75篇 |
2011年 | 102篇 |
2010年 | 79篇 |
2009年 | 81篇 |
2008年 | 78篇 |
2007年 | 62篇 |
2006年 | 54篇 |
2005年 | 45篇 |
2004年 | 44篇 |
2003年 | 30篇 |
2002年 | 37篇 |
2001年 | 29篇 |
2000年 | 43篇 |
1999年 | 30篇 |
1998年 | 32篇 |
1997年 | 32篇 |
1996年 | 30篇 |
1995年 | 18篇 |
1994年 | 28篇 |
1993年 | 33篇 |
1992年 | 40篇 |
1991年 | 30篇 |
1990年 | 31篇 |
1989年 | 22篇 |
1988年 | 29篇 |
1987年 | 23篇 |
1986年 | 19篇 |
1985年 | 35篇 |
1984年 | 35篇 |
1983年 | 41篇 |
1982年 | 30篇 |
1981年 | 33篇 |
1980年 | 28篇 |
1979年 | 30篇 |
1978年 | 26篇 |
1977年 | 16篇 |
1976年 | 22篇 |
1975年 | 23篇 |
1974年 | 16篇 |
1973年 | 26篇 |
1972年 | 17篇 |
排序方式: 共有2344条查询结果,搜索用时 0 毫秒
1.
Keith H. Coble Thomas O. Knight George F. Patrick & Alan E. Baquet 《Review of Agricultural Economics》2002,24(2):309-321
A survey conducted in Mississippi, Texas, Indiana, and Nebraska elicited producers' preferences for various farm policy changes. This permitted examination of the diversity of preferences that single-state studies have not allowed. Five policy choices, including deficiency payments, loan programs, crop insurance, export programs, and disaster payments were examined. Logit model results predicting producer preferences for each of the five dichotomous policy choices are reported. Explanatory variables based on expected utility theory such as risk aversion, price and yield variability, and price–yield correlation are significant in various models. 相似文献
2.
Means-Testing the Child Benefit 总被引:1,自引:0,他引:1
Improving the distributional impact of transfers may be costly if it reduces labor supply. In this paper we show how effects of changes in the design of the child benefit program can be examined by employing information from behavioral and non-behavioral simulations on micro data. The direct distributional effects are assessed by tax-benefit model calculations, while female labor supply responses to alternative child benefit schemes are simulated under the assumption that choices are discrete. Distributional effects after labor supply responses are also shown. The study confirms that greater targeting of the child benefit is traded against reductions in female labor supply. 相似文献
3.
4.
Wayne H. Howard Robert W. Blake Thomas O. Knight C. Richard Shumway Michael A. Tomaszewski 《Agricultural Economics》1992,7(1):77-90
A method of combining survey data and Dairy Herd Improvement Association (DHIA) records to achieve low cost farm trials is presented. Farm trials and surveys of current practices and production responses are useful to identify yield gaps between expectations predicted from experimental findings and actual field results. Different management schemes can be ranked using subjective probabilities and stochastic dominance to enhance successful implementation of research findings and to increase the feedback between researchers, extension workers, and producers. A survey of current masitis control practices and expected milk yield response is the example. Combining survey results with DHIA records allowed estimating the relationship between somatic cell counts (SCC) and milk yield. Eliciting beliefs about the relationship between SCC and milk yield showed that producers agreed with predictions from the statistical model. Subjective probabilities about SCC and mastitis control practices showed that our sample of experts and producers consistently ranked the different practices but extension agents had no consensus about the the most or least effective ones. 相似文献
5.
Sascha O. Becker 《Bulletin of economic research》2006,58(1):61-72
Transition patterns from school to work differ considerably across OECD countries. Some countries exhibit high youth unemployment rates, which can be considered an indicator of the difficulty facing young people trying to integrate into the labour market. At the same time, education is a time‐consuming process, and enrolment and dropout decisions depend on expected duration of studies as well as on job prospects with and without completed degrees. One way to model entry into the labour market is by means of job‐search models, where the job arrival hazard is a key parameter in capturing the ease or difficulty in finding a job. Standard models of job search and education assume that skills can be upgraded instantaneously (and mostly in the form of on‐the‐job training) at a fixed cost. This paper models education as a time‐consuming process, a concept which we call time‐to‐educate, during which an individual faces the trade‐off between continuing education and taking up a job. 相似文献
6.
Richard P. O’Neill Emily Bartholomew Fisher Benjamin F. Hobbs Ross Baldick 《Journal of Regulatory Economics》2008,34(3):220-250
The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive
power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially
settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for
both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices,
if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission.
The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.
相似文献
7.
Jayson L. Lusk W. Bruce Traill Lisa O. House Carlotta Valli Sara R. Jaeger Melissa Moore Bert Morrow 《Journal of Agricultural Economics》2006,57(1):1-21
The United States (US) exports more than US$6 billion in agricultural commodities to the European Union(EU) each year, but one issue carries the potential to diminish this trade: use of biotechnology in food production. The EU has adopted more stringent policies towards biotechnology than the US. Understanding differences in European and American policies towards genetically modified (GM) foods requires a greater understanding of consumers’ attitudes and preferences. This paper reports results from the first large‐scale, cross‐Atlantic study to analyse consumer demand for genetically modified food in a non‐hypothetical market environment. We strongly reject the frequent if convenient assumption in trade theory that consumer preferences are identical across countries: the median level of compensation demanded by English and French consumers to consume a GM food is found to be more than twice that in any of the US locations. Results have important implications for trade theory, which typically focuses on differences in specialization, comparative advantage and factor endowments across countries, and for on‐going trade disputes at the World Trade Organization. 相似文献
8.
9.
White O 《Medical economics》1992,69(19):52-4, 58, 64-7
10.
Many textbooks on project management present illustrations concerning the relative size of project attributes during different project phases. The derived models all have attributes in common, such as uncertainty, significance of decisions, and degree of freedom to maneuver, that are typically high in the beginning of the project and low in the end. At the same time, variables such as the accumulated cost and available information begin at low levels and end up at a high level at the end of the project. Based on empirical data from projects, this paper illustrates and quantifies one of these attributes, the freedom to maneuver, in different project phases. 相似文献