全文获取类型
收费全文 | 12471篇 |
免费 | 391篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 2341篇 |
工业经济 | 990篇 |
计划管理 | 2230篇 |
经济学 | 2798篇 |
综合类 | 242篇 |
运输经济 | 85篇 |
旅游经济 | 189篇 |
贸易经济 | 2004篇 |
农业经济 | 505篇 |
经济概况 | 1448篇 |
信息产业经济 | 1篇 |
邮电经济 | 30篇 |
出版年
2023年 | 77篇 |
2021年 | 85篇 |
2020年 | 162篇 |
2019年 | 213篇 |
2018年 | 279篇 |
2017年 | 298篇 |
2016年 | 283篇 |
2015年 | 189篇 |
2014年 | 276篇 |
2013年 | 1232篇 |
2012年 | 382篇 |
2011年 | 394篇 |
2010年 | 358篇 |
2009年 | 433篇 |
2008年 | 389篇 |
2007年 | 364篇 |
2006年 | 307篇 |
2005年 | 282篇 |
2004年 | 259篇 |
2003年 | 270篇 |
2002年 | 233篇 |
2001年 | 263篇 |
2000年 | 275篇 |
1999年 | 242篇 |
1998年 | 235篇 |
1997年 | 260篇 |
1996年 | 210篇 |
1995年 | 229篇 |
1994年 | 221篇 |
1993年 | 197篇 |
1992年 | 233篇 |
1991年 | 210篇 |
1990年 | 175篇 |
1989年 | 170篇 |
1988年 | 148篇 |
1987年 | 138篇 |
1986年 | 149篇 |
1985年 | 205篇 |
1984年 | 179篇 |
1983年 | 193篇 |
1982年 | 158篇 |
1981年 | 183篇 |
1980年 | 152篇 |
1979年 | 180篇 |
1978年 | 150篇 |
1977年 | 130篇 |
1976年 | 138篇 |
1975年 | 116篇 |
1974年 | 110篇 |
1973年 | 96篇 |
排序方式: 共有10000条查询结果,搜索用时 968 毫秒
281.
The lagging development of many minority communities has had an adverse effect on economic growth in the United States. One factor historically associated with creating or exacerbating this minority problem is the unwillingness of banks to service minority communities adequately. The federal government used two initiatives to address banks' reluctance to aid minorities: the Community Reinvestment Act (CRA) that ended the practice of redlining and required all federally regulated banks to demonstrate that they served the convenience and credit needs of their local communities, particularly minorities, women, and other underserved groups, and the establishment and preservation of minority owned banks that were expected to be more sympathetic to the needs of their communities. This paper evaluates the extent to which minority banks have met the needs of minority communities. The assessment is conducted in the context of the ratings received by minority banks on their Community Reinvestment Act (CRA) audits. Through the use of CRA audits, the performance of minority banks is also compared to the performance of the general banking community to determine the validity and success of the government's minority banking initiative. Analysis of CRA audit ratings also compares the performance of minority banks among different ethnicities. 相似文献
282.
Regulated firms in pollution permit markets with banking 总被引:5,自引:0,他引:5
This paper examines a competitive intertemporal market for bankable emission permits, such as sulfur dioxide allowances. Without profit regulation, firms are willing to bank permits if permit prices rise over time with the rate of interest, but will not bank if prices rise more slowly.The market achieves aggregate emission targets at least total cost if there is no profit regulation, but may not do so if firms are subject to profit regulation. Firms must arbitrage differences both in abatement cost and in the regulatory treatment of permits to achieve least total cost.The impetus for this work came from research we initiated during the Summer of 1990 for the Energy Information Agency. We would like to thank Chuck Howe for his detailed comments and enthusiasm, and Jim Alm, Dave Bjornstad, Charles deBartolome, Mike Greenwood, Robert Hahn, Douglas Hale, Carolyn Lang, Jim Markusen, Edward Morey, Till Requate, and Tom Tietenberg. We are grateful to the editor and two anonymous referees for stressing the importance of regulation in these markets and for their helpful and clarifying advice. 相似文献
283.
The double-hurdle and infrequency-of-purchase models are generalized with the inverse hyperbolic sine transformation in the dependent variable. The resulting specifications feature more flexible parameterization and error distributions than the untransformed models. Using the 1987–88 Nationwide Food Consumption Survey data on household pork consumption, a nonnested test suggests that the IHS double-hurdle model provides better characterization of the data-generating process than the IHS infrequency-of-purchase model but the elasticities derived from these models are similar. Own-price effects on the probability and level of consumption are negative and significant, but the elasticities are small. Income and cross-price effects are not significant. Household age composition, education, gender of meal planner, and race are among the demographic variables that affect consumption. 相似文献
284.
Ariel Dinar Mark B. Campbell David Zilberman 《Environmental and Resource Economics》1992,2(4):373-398
Modern irrigation technologies have been suggested as a means of conserving scarce water and reducing environmental pollution caused by irrigated agriculture. This paper applies an economic model of technology selection that provides a general framework to analyzing adoption of irrigation technologies under various environmental conditions. Data from the San Joaquin Valley of California is used to verify the theoretical relationships. Results suggest key variables to be considered by policy makers concerned with adoption of modern irrigation technologies. Among these variables are crop prices, water technology costs, farm organization characteristics, and the environmental conditions of the farm or the field. Policy implications were discussed and analyzed.This research was conducted while the first author was a visiting scholar with the Dept. of Agricultural Economics, University of California, Davis, and USDA-ERS, USA. 相似文献
285.
Andrew N. Kleit 《Journal of Regulatory Economics》1990,2(2):151-172
Since 1978 the Federal government has regulated the fuel economy of new cars sold in the United States. The purpose of Corporate Average Fuel Economy (CAFE) standards is to lessen the national dependence on foreign oil. Through the use of theoretical and empirical models this paper examines the impact of CAFE standards on the automobile industry and on energy consumption. It is shown that CAFE standards may or may not save energy. If CAFE does save energy, it does so at a prohibitive cost to the economy. CAFE standards are also shown to have a number of perverse impacts on the automobile industry as well as consumers. 相似文献
286.
Richard J. Murnane John B. Willett Marie-Andrée Somers Claudia Uribe 《The German Economic Review》2005,6(3):309-330
Abstract. The relatively poor average performance of German students on the recent PISA international evaluations of 15- and 16-year-olds' literary skills (2000) and mathematical skills (2003) and the wide variation in performance, with low-income students scoring particularly poorly, have led to calls for reforms of the German educational system. Understanding why students in some classrooms learn more than do those in other classrooms is an important first step in considering alternative reform strategies. Possible explanations include differences in teacher quality, class sizes and peer groups, and also differences among the types of secondary schools that parents select for their children. This paper illustrates a set of techniques that are useful in examining the roles these factors play in predicting why, net of family background and prior achievement, the average achievement of children in some classrooms is much higher than that of children in other classrooms. We illustrate the use of these techniques with a dataset from Bogotá, Colombia, that has two attractive properties. First, some teachers teach multiple classes of students. Second, students are enrolled in schools in two sectors (public and private). Application of the techniques described in this paper could shed light on the reasons why the average academic achievement of German students attending some schools is much higher than that of German students attending other schools. 相似文献
287.
288.
EFFECT OF GROUPING OF DATA ON THE DIVERGENCE BETWEEN LASPEYRES AND PAASCHE FORMS OF QUANTUM INDEXES*
F. B. Horner 《Review of Income and Wealth》1971,17(3):263-272
Historical data for the manufacturing industry in the United States and United Kingdom are quoted, showing in most cases divergences between Laspeyres and Paasche forms of the quantum index that are by no means negligible. When the Paasche index for two of the series is recalculated with quantity indicators for industries instead of for products, the divergence is greatly reduced, and when quantity indicators for industry groups are substituted it almost disappears. This raises some questions about the practices of econometricians and statisticians, which are discussed. In a mathematical appendix by E. R. Coleman it is suggested that the grouping effect referred to does not depend on the particular way in which the data are grouped in most quantum indexes. 相似文献
289.
The theory of optimal currency areas stresses that a single currency zone should have symmetry across shocks and structures. What happens if the monetary transmission mechanisms differ so that a common monetary policy has different effects in different places? Using a fully specified econometric model, we find that such asymmetries are likely to destabilise the business cycle and put countries out of phase with each other in a way that cannot be corrected by deficit-constrained national fiscal policies. Market discipline, however, could achieve this. Hence, the question is whether the markets would create sufficient discipline on their own. 相似文献
290.
The foundation upon which accounts of policy-motivated behaviorof Supreme Court justices are built consists of assumptionsabout the policy preferences of the justices. To date, mostscholars have assumed that the policy positions of Supreme Courtjustices remain consistent throughout the course of their careersand most measures of judicial ideologysuch as Segal andCover scoresare time invariant. On its face, this assumptionis reasonable; Supreme Court justices serve with life tenureand are typically appointed after serving in other politicalor judicial roles. However, it is also possible that the worldviews,and thus the policy positions, of justices evolve through thecourse of their careers. In this article we use a Bayesian dynamicideal point model to investigate preference change on the USSupreme Court. The model allows for justices' ideal points tochange over time in a smooth fashion. We focus our attentionon the 16 justices who served for 10 or more terms and completedtheir service between the 1937 and 2003 terms. The results arestriking14 of these 16 justices exhibit significant preferencechange. This has profound implications for the use of time-invariantpreference measures in applied work. 相似文献