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101.
Since the 1970s technology assessment by public bodies has become generally accepted as necessary. Modes of technology assessment differ from country to country, in terms of degree of institutionalization, acceptance by policy makers and level of public involvement, and these in turn depend on the goals, methods and organizational framework of the particular technology assessment. The varying social and political roles of technology assessment arise out of national political traditions and differing cultural views of technology. This article compares modes of biotechnology assessment in the USA, Japan and Denmark, focusing on the role of public discussion in the policy-making process. By analysing these three different contexts, the article seeks to uncover ways in which the cultural conditioning of technology policy takes place. 相似文献
102.
M. Monique McMillian Tom Munk Erica L. Bumpers Wanda Coneal 《The Review of Black Political Economy》2010,37(3-4):257-262
The test-score gap between black and white students should be seen as a crisis. We propose a testable model based on readily available data that will allow us to estimate the impact and interrelationships of a multitude of factors that may be partially responsible for the problem. The estimation of this model will require the joint efforts of experts in many areas of education as well as of experts in multilevel structural equation modeling. 相似文献
103.
Newly public companies must disclose significant risk factors in the offering prospectus. These disclosures are examples of “soft” or ambiguous information. Ambiguity models predict that investors will alter their portfolio weights and react to subsequent signals about such information. We test for these effects in a sample of 1,398 initial public offerings (IPOs) using word count ratios between soft and hard information as measures of ambiguity. We find a significant relationship between the soft information on risk and both initial and ex post measures of returns. These results support the view that soft information embeds ambiguity and that it influences investors’ portfolio choices. 相似文献
104.
Alain P. Chaboud Benjamin Chiquoine Erik Hjalmarsson Mico Loretan 《Journal of Empirical Finance》2010,17(2):212-240
Using two newly available ultrahigh-frequency datasets, we investigate empirically how frequently one can sample certain foreign exchange and U.S. Treasury security returns without contaminating estimates of their integrated volatility with market microstructure noise. Using the standard realized volatility estimator, we find that one can sample dollar/euro returns as frequently as once every 15 to 20 s without contaminating estimates of integrated volatility; 10-year Treasury note returns may be sampled as frequently as once every 2 to 3 min on days without U.S. macroeconomic announcements, and as frequently as once every 40 s on announcement days. Using a simple realized kernel estimator, this sampling frequency can be increased to once every 2 to 5 s for dollar/euro returns and to about once every 30 to 40 s for T-note returns. These sampling frequencies, especially in the case of dollar/euro returns, are much higher than those that are generally recommended in the empirical literature on realized volatility in equity markets. The higher sampling frequencies for dollar/euro and T-note returns likely reflect the superior depth and liquidity of these markets. 相似文献
105.
Unpredictable dividend growth by the dividend–price ratio is considered a ‘stylized fact’ in post war US data. Using long-term annual data from the US and three European countries, we revisit this stylized fact, and we also report results on return predictability. We make two main contributions. First, we document that for the US, results for long-horizon predictability are crucially dependent on whether returns and dividend growth are measured in nominal or real terms, and this difference is due to long-term inflation being strongly negatively predictable by the dividend–price ratio. The impact of inflation is to reinforce real return predictability and to reduce – or change direction of – real dividend growth predictability. This provides an explanation for the strong predictability of long-horizon real returns in the ‘right’ direction, and the strong predictability of long-horizon real dividend growth in the ‘wrong’ direction, that we see in US post war data. Second, we find that predictability patterns in three European stock markets are in many ways different from what characterize the US stock market. In particular, in Sweden and Denmark dividend growth is strongly predictable by the dividend–price ratio in the ‘right’ direction while returns are not predictable. The results for the UK are mixed. Our results are robust to a number of changes in the modeling framework. We discuss the results for dividend growth predictability in terms of the ‘dividend smoothing hypothesis’. 相似文献
106.
Pecking order and debt capacity considerations for high-growth companies seeking financing 总被引:1,自引:0,他引:1
This paper examines incremental financing decisions within high-growth businesses. A large longitudinal dataset, free of survivorship
bias, to cover financing events of high-growth businesses for up to 8 years is analyzed. The empirical evidence shows that
profitable businesses prefer to finance investments with retained earnings, even if they have unused debt capacity. External
equity is particularly important for unprofitable businesses with high debt levels, limited cash flows, high risk of failure
or significant investments in intangible assets. These findings are consistent with the extended pecking order theory controlling
for constraints imposed by debt capacity. It suggests that new equity issues are particularly important to allow high-growth
businesses to grow beyond their debt capacity. 相似文献
107.
108.
Suresh Bhagavatula Tom Elfring Aad van Tilburg Gerhard G. van de Bunt 《Journal of Business Venturing》2010,25(3):245-260
Small-scale firms in rural areas play an extremely important role in the development of any country, and especially in developing countries. To understand entrepreneurs who operate in a low-technology industry, we rely on the network perspective on entrepreneurship. In this paper, we investigate how the social and human capital of entrepreneurs (in this case master weavers in the handloom industry) influence their ability to recognize opportunities and mobilize resources. In addition to examining the direct effects, we also explore the possibilities of social capital mediating between human capital, on the one hand, and opportunity recognition and resource mobilization on the other. This paper adds to existing literature in two ways: firstly, we expand the social capital paradigm by including different cultural settings and links to existing studies regarding small enterprises. Secondly, we provide additional evidence to the ongoing debate as to what constitutes a ‘good network’. 相似文献
109.
Dr. Erik Hahn 《保险科学杂志》2013,102(5):519-536
The paper refers to legal questions that arise in connection with the collection and use of genetic data in the context of private insurance. The content and meaning of § 18 GenDG is described. Then, § 18 GenDG is set in relation to notification requirements out of the VVG. The paper exemplarily emphasizes that, despite the codification of GenDG, specific legal problems arise. Accordingly, the paper provides solutions to overcome these problems. Particular problems refer to the role of genetic data of third parties and according relations to the family history, possibilities to communicate genetic data by the insured in case of medical indication, the ratio of predictive and diagnostic genetic testing and the range of the total limits of § 18 I 2 GenDG. 相似文献
110.
This work analyses the strategy of outsourcing information systems and information technology (IS/IT), considering the different activities comprising the IS/IT area. The literature on IS contains numerous works that analyse outsourcing, very few of which examine the relationship with the different types of capabilities in the IS/IT area and their strategic value. Most works centre on the motives for, and advantages of, the strategy of outsourcing the IS/IT area, while scant attention has been paid to the study of the long-term consequences of outsourcing. This work develops a theoretical model which is applied to the hotel sector and which shows that hotels following a more intensive outsourcing strategy develop fewer managerial capabilities related to knowledge in the management of IS/IT resources. This negative relationship extends to other types of capabilities typical of the area and to certain organisational capabilities. A negative relationship is also observed between the level of outsourcing and the strategic value given to the IS/IT area, which may lead to a lower potential for the development of competitive advantage. 相似文献