全文获取类型
收费全文 | 13911篇 |
免费 | 388篇 |
国内免费 | 13篇 |
专业分类
财政金融 | 2484篇 |
工业经济 | 1082篇 |
计划管理 | 2296篇 |
经济学 | 2991篇 |
综合类 | 307篇 |
运输经济 | 88篇 |
旅游经济 | 278篇 |
贸易经济 | 2545篇 |
农业经济 | 745篇 |
经济概况 | 1473篇 |
邮电经济 | 23篇 |
出版年
2021年 | 88篇 |
2020年 | 152篇 |
2019年 | 227篇 |
2018年 | 291篇 |
2017年 | 319篇 |
2016年 | 298篇 |
2015年 | 212篇 |
2014年 | 330篇 |
2013年 | 1328篇 |
2012年 | 366篇 |
2011年 | 393篇 |
2010年 | 378篇 |
2009年 | 412篇 |
2008年 | 457篇 |
2007年 | 429篇 |
2006年 | 346篇 |
2005年 | 340篇 |
2004年 | 305篇 |
2003年 | 308篇 |
2002年 | 287篇 |
2001年 | 279篇 |
2000年 | 281篇 |
1999年 | 253篇 |
1998年 | 261篇 |
1997年 | 265篇 |
1996年 | 268篇 |
1995年 | 242篇 |
1994年 | 240篇 |
1993年 | 252篇 |
1992年 | 243篇 |
1991年 | 238篇 |
1990年 | 215篇 |
1989年 | 188篇 |
1988年 | 145篇 |
1987年 | 179篇 |
1986年 | 178篇 |
1985年 | 265篇 |
1984年 | 274篇 |
1983年 | 266篇 |
1982年 | 239篇 |
1981年 | 237篇 |
1980年 | 199篇 |
1979年 | 210篇 |
1978年 | 154篇 |
1977年 | 162篇 |
1976年 | 137篇 |
1975年 | 109篇 |
1974年 | 103篇 |
1973年 | 94篇 |
1972年 | 67篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Received March 5, 2001; revised version received August 5, 2002
Published online: April 30, 2003 相似文献
102.
Food insecurity or lack of access to adequate and nutritious food is a major determinant of under‐nutrition. Expenditure patterns accompanied by unemployment, low level of education, inflation and high food prices have a direct negative impact on food availability within households (Moller, 1997). Ghany and Schwenk (1993) found that as household income increases, the proportion of expenditures on food decreases, the proportion of expenditures on clothing, rent, fuel, and light stayed the same and that of sundries increased. The aim of this study was to investigate household expenditure patterns on food and non‐food items in Khayelitsha. A total of 20 households (10 from the formal and 10 from the informal settlements) were randomly selected from those willing to participate in the study. A questionnaire with open ended and closed questions was used to collect data. The questionnaire comprised four sections namely: biographical information, socio‐economic information which used wealth quintiles to assess households’ social economic status, total expenditure information and a food/hunger scale was used to assess households’ food availability. The findings revealed that households from informal settlements spent more money (62.2%) as a proportion of their income on food compared to households from the formal settlement (39%). There was higher unemployment rate (100%) at the informal settlement compared to the formal settlement (40%). Wealth quintiles scales did not reflect the social status of the households as equipment and assets owned by households were only used as fallback position during times of economic hardships. Households used different purchasing strategies; food and non‐food items were mainly purchased from outside the township (60%). Forty percent of the households bought their items from local shops and spazas because they allowed them to buy items whenever little money was available or to take items on credit. All the respondents preferred to buy bread and small items from spazas and local shops. Prices of items in the spazas and local shops were higher compared to prices of items in bigger shops outside the townships. The food/hunger scale and wealth quintiles showed that informal settlement households were more food insecure (as they were all unemployed and about 50% of the households ran out of food always) and had fewer assets compared to the formal settlement households. The implications of these findings underscore the need to improve socio‐economic conditions of low resource households through empowerment programs. These programs can be in the form of training in management/decision making, work related skills/literacy (to help them access formal employment), business management/income generation skills (to help them to be self‐employed), budgeting, and food gardening. This approach can help to increase the resource base and alleviate food insecurity in low resource households. 相似文献
103.
We examine investment behavior among exchange-listed Korean manufacturing firms before and after the 1997 financial crisis using firm-level panel data. Starting with the standard Q-theory of investment, we augment it by allowing for a sales accelerator and the possibility of cash constraints, categorizing firms based on their age, size and affiliation to an industrial conglomerate (i.e., chaebol). We find that Tobin’s Q is a robust determinant of investment in a pooled sample for 1992–2001, but that it became more important for small firms and less important for chaebol-affiliated firms after the crisis. Investment by chaebol firms also became more sensitive to the availability of internal cash balances after the crisis. We interpret this as reflecting a shift in the Korean economy to a stronger market orientation after the crisis and to a business climate in which the quality of potential projects became more important relative to capital market imperfections in determining the destination of investment funds. 相似文献
104.
Based upon a review of the extant literature, it is proposed that the structure of an interorganizational relationship is composed of relationship type and the under‐researched construct of relationship magnitude. Specifically, it is hypothesized that relationship magnitude, a second order construct composed of trust, commitment, and dependence, affects relationship type, which affects the perception of value of the relationship. The results of a survey analyzed through structural equation modeling support these hypotheses. 相似文献
105.
This paper examines whether firms which delay earnings announcements engage in earnings management. The cross–sectional version of the modified Jones 1995 model is used to estimate 'normal' accruals. Prior research has documented that, on average, delayed earnings announcements are associated with negative earnings surprises. Our evidence suggests that the market anticipates unfavorable earnings news when it observes reporting delays. As a consequence, late reporters appear to make the most of a bad situation by employing income–decreasing accruals in big–bath–type earnings management and in contractual renegotiations. We find that the magnitude of income–reducing abnormal accruals is related to the reporting lag. 相似文献
106.
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
107.
There has been growing interest within the economics discipline in the role of equity concerns in the distribution of resources. This paper presents empirical evidence from controlled laboratory experiments where third-party decision makers allocate resources between two individuals. The experimental results indicate that subjects view a wide range of different allocations as the fair distribution of resources. However, regression analysis indicates that both treatment effects and a few demographic variables explain some of this variation in fairness concepts. Most significantly, decision makers rewarded subjects who earned their favorable positions, and the gender of the decision maker was an important predictor of the allocation chosen. 相似文献
108.
Who's in charge of the central city? The conflict between efficiency and equity in the design of a metropolitan area 总被引:1,自引:0,他引:1
A circular metropolitan area consists of a central city surrounded by a suburb. Households sort over the two jurisdictions based on public service levels and their costs of commuting to the metropolitan center. Using numerical simulations, we show that (1) there typically exist two equilibria: one in which the poor form the voting majority in the central city and the other in which the rich form the majority in the central city; (2) there is an efficiency vs. equity trade-off as to which equilibrium is preferred; and (3) if the central city contains only poor households, equity favors expanding the central city to include rich households. The third result arises not because of a fiscal subsidy from rich to poor households induced by a property tax but rather because of a change in house price capitalization. 相似文献
109.
E. L. Zhitkova 《Studies on Russian Economic Development》2008,19(1):70-79
The paper focuses on the emerging system of territorial strategic planning in the constituent entities of the Russian Federation and municipalities. Suggested for practical application are the best Russian research studies and practices of coordinating the interests of municipal and regional authorities. The analysis of scholarly approaches to the issue in focus allows one to infer that the best elaborated position is that of the staff of the North-Western Office of the Russian Research Center for Local Governance (RRCLG). As regards the express-analysis of practices adopted in the number of the Russian Federation constituent entities, the practices of the Krasnodar krai appear to be the most promising. 相似文献
110.
Faced with a record level of unemployment, the present debate in Germany is to extend the weekly hours of work. In this paper the employment effects of an economy-wide increase in weekly hours are quantified on the basis of a computable general equilibrium model for different specifications of the wage setting rule and the use of additional policy-induced public income. The simulation results back the argument of the opponents of longer working time that not more jobs will be created. However, when the higher tax revenues from GDP growth are used to reduce social security contributions, then the claim of the proponents that more jobs will be created can be supported. 相似文献