首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   344篇
  免费   10篇
  国内免费   3篇
财政金融   64篇
工业经济   37篇
计划管理   48篇
经济学   115篇
运输经济   4篇
旅游经济   5篇
贸易经济   48篇
农业经济   14篇
经济概况   22篇
  2024年   1篇
  2023年   4篇
  2022年   1篇
  2021年   6篇
  2020年   13篇
  2019年   19篇
  2018年   23篇
  2017年   13篇
  2016年   10篇
  2015年   13篇
  2014年   12篇
  2013年   47篇
  2012年   20篇
  2011年   15篇
  2010年   22篇
  2009年   11篇
  2008年   13篇
  2007年   15篇
  2006年   13篇
  2005年   5篇
  2004年   18篇
  2003年   7篇
  2002年   8篇
  2001年   8篇
  2000年   3篇
  1999年   5篇
  1998年   4篇
  1997年   2篇
  1995年   2篇
  1994年   2篇
  1993年   2篇
  1992年   1篇
  1991年   2篇
  1990年   2篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   2篇
  1980年   1篇
  1979年   2篇
  1978年   1篇
  1975年   1篇
  1973年   1篇
  1972年   2篇
  1968年   1篇
排序方式: 共有357条查询结果,搜索用时 15 毫秒
1.
Summary The paper deals with three different areas of the financial sphere: national moneys, exchange rates and financial claims, markets and institutions. For each of them, it tries to identify the main forms of instability which may occur, their causes and consequences for the real economy. Depending on the area concerned, the forms of instability include inflation, fluctuations and misalignments in interest rates, exchange rates and asset prices and finally solvency and liquidity crises of institutions. It is concluded that, over the last fifteen years, significant progress has been made in the policy framework to counteract instabilities in the national and monetary spheres. The conclusion is more mixed with regard to the structure of financial markets.[/p]We are grateful to Julian Alworth, Svein Andresen, Gavin Bingham, Joe Bisignano, Michael Hutchison and Paul van den Bergh for useful comments.  相似文献   
2.
ABSTRACT

There is growing evidence that nature-based recreation (NBR) during childhood promotes connectedness to nature, which in turn fuels NBR during adulthood. In addition to providing a number of health benefits, NBR participation may enhance leisure satisfaction, an important predictor of happiness and life satisfaction. In this exploratory study, we tested these hypothesised links using a path model with a cross-sectional sample of 224 Brazilian college students, where NBR participation during childhood increases connectedness to nature and NBR participation during adulthood, which in turn promotes leisure satisfaction. The model fit the data well χ2 (2) = 1.924, χ2/df = 0.962 (N = 220, p = .38), CFI = 1.00, AGFI = .978, GFI = .996, and RMSEA = .00, with results showing an indirect positive link between NBR during childhood and leisure satisfaction, and a direct link between NBR during adulthood and leisure satisfaction. The indirect effect of connectedness to nature on leisure satisfaction was also significant: NBR during childhood fostered connectedness to nature, which motivated NBR during adulthood and higher levels of leisure satisfaction. Leisure practitioners can improve people’s leisure satisfaction by promoting engagement in NBR activities across life stages and emphasising connection to nature.  相似文献   
3.
External technology acquisition has been proved to be an important strategy to enhance firms’ innovation performance. However, previous studies claim that companies acquiring technologies tend to not carry on with this strategy over time, thus limiting their attitude toward continuous technology acquisition. Moreover, the extant literature also highlights that this attitude is strongly influenced by their organizational structure. Therefore, in the present paper, we investigate the relationship between how firms organize R&D activities and continuous technology acquisition. Specifically, given the increasing globalization of technological development, we focus on the role of R&D geographic dispersion, and how its influence is moderated by firms’ technological diversification. We tested our hypotheses on longitudinal data of 303 biotechnology firms that acquired, at least, one USPTO patented technology over the period 1982–2012. Results reveal that R&D geographic dispersion is curvilinearly (inverted U-shaped) related to continuous technology acquisition, with negative returns occurring earlier in technology-diversified companies.  相似文献   
4.
Economic freedom, which measures the protection of property and freedom to contract, is generally argued to capture the quality of a state’s institutions regarding market activity. As to be expected, numerous studies have found that economic freedom is associated with good economic outcomes. Additionally, much effort in public economics has worked to identify the features of quality non-market public institutions. No effort has been made to connect institutions that influence market activity and institutions that govern non-market activities. We take a first step. We employ a linear programming method for measuring relative efficiencies known as Data Envelopment Analysis. We apply this technique to information on the use of inputs to the production of the prosecution of crime across the thousands of local prosecutor offices in the U.S. We then compare state-level measurements of prosecution productivity with data on state-level economic freedom from the Economic Freedom of North America index. We show that there is a positive and statistically significant relationship between the two. Those states that develop institutions respecting economic freedom also tend to be the states that develop efficient publicly-provided services. The results are extended to complementary economic freedom measurements.  相似文献   
5.
The introduction of the flex-fuel cars in the Brazilian market in 2003 changed considerably the consumer decision-making process. Prior to this date, it was necessary to choose the automobile type only by gasoline or by ethanol fuel; today it is possible to choose a car type with both fuel options. This flexibility generates economic advantages for his owner, but what are the financial benefits of a flex-fuel car in comparison with a car using only gasoline? Geographically, where is the owner of the benefits from this flexibility located? This article presents an empirical application of the Real Options Theory in the analysis of the flex-fuel car option for five geographic Brazilian regions: Northern, Northeastern, Central-Western, Southeastern and Southern. The regional price differences as well as the consumer preferences of these regions were met. For this purpose, historical fuel prices were considered stochastic and following a Mean Reverting Stochastic process. The prediction and option values were generated by a Monte Carlo simulation. The results indicated that the option embedded on the Brazilian flex-fuel car adds considerable value to the owner in all regions and car models considered, with the Southeastern Region receiving most benefits by the flex option.  相似文献   
6.
The aim of this study is to analyse whether the receipt of public R&D funding determines firm's R&D strategy selection. This issue is crucial, as previous studies have shown that each R&D strategy is associated to a higher, or lower, innovation performance. We consider three R&D strategies – make, buy, make–buy – and three different sources of public funding – regional, state and other (such as EU). The model estimation is performed through a multinomial logit model with random effects with a sample of 457 large firms for the period 1992–2005, taken from the Spanish Survey of Business Strategies. The main finding is that the source of the funding influences whether firms select the make, buy or make–buy strategy. Additionally, because of the panel structure of the sample, we observe that the effect of public funding on the R&D strategy selection lasts longer for state and regional funds than for other funds.  相似文献   
7.
Frank Gerald Shove was a close friend of Keynes and the other protagonists of the economic debates in Cambridge during the 1920s and 1930s. Shove's influence on those debates is not well documented because he published little and had all his notes destroyed after his death. This paper looks at Shove's most significant contributions to the debates of the 1930s. Attention is concentrated on the debates over increasing returns and imperfect competition. Shove emphasized the complexity of economic phenomena and the need to develop tools to deal with it. He found his analytical and methodological inspiration in Marshall's work. This position led him to clash with younger economists, in particular Joan Robinson, whose work on imperfect competition and whose efforts to achieve rigorous and ‘precise’ results failed, in his view, to capture the working of actual markets. The final section of the paper discusses the similarity of Shove's methodological outlook to that of Keynes. Both were well aware of the need to go beyond Marshall, but they wanted to retain the richness, complexity and realism of Marshall's approach.  相似文献   
8.
Abstract

This paper examines the connections linking recent changes in Latino migration, the American meatpacking industry, and American immigration policy. As the meatpacking industry has vertically integrated and shifted to rural non-union areas throughout the South, it has grown increasingly dependent on short-term low-skilled employees. This process can be understood as the industrialization of meatpacking, where profitability depends on continuous high-throughput production. To succeed, the industrialization of meatpacking requires a large pool of easily replaceable labor that has no control over the pace work on of the shop floor. At the same time, as immigrants have been drawn to these new company towns, American immigration policy has turned increasingly towards border enforcement. We argue that the presence of illegal immigrants within the factories reduces the bargaining power of shop workers and increases employer control. Most studies of immigration have focused on the supply of migrant labor, the immigrants attracted to higher paying jobs. We argue that valuable insight is gained by looking at the manufacturers' demand for cheap labor and the implementation of an industrial strategy that requires it.  相似文献   
9.
This article aims to estimate the size of the US shadow economy (SE) using a structural equation approach and to evaluate if a structural relationship exists between the SE and the unemployment rate (UR) in the United States. The size of the SE is estimated to be decreasing over the last two decades. We corroborate the existence of a structural relationship between the SE and the UR by using a simple theoretical model. Furthermore, we extend the Okun's law to estimate the structural relationship between growth rate of official GDP, SE and UR. Our results indicate a significant positive relationship between the SE and the UR.  相似文献   
10.
The Basel Capital Accord (pillar 3) states that disclosure of information (transparency) is essential to financial stability. This study analyzes, through inflation reports, the disclosure of information from the Central Bank of Brazil concerning the credit market. We consider credit risk and capital buffers as measures of financial stability in this analysis. Furthermore, in order to measure the perception of the monetary authority on the credit market, we built two indices based on the central bank’s communication on credit development. We performed a panel data analysis based on a sample of 125 banks for the period from June 1999 to September 2014 (7000 observations). The findings suggest that central bank communication regarding expectations concerning the credit market contributes to financial stability. Therefore, this kind of communication of central banks (about credit development) may constitute an important macroprudential tool to improve financial stability.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号