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71.
72.
Raúl Pedro Mentz 《Journal of econometrics》1977,6(2):225-236
To estimate α in the model yt = ut+αut?1, we consider a proposal by Durbin (Biometrika, 1969). It consists in fitting an autoregression of order k to the data, and deriving from there an estimate α^. The probability limit and the variance of the limiting normal distribution of α^ are presented and discussed in detail, when the sample size T → ∞, but k remains fixed. The differences between the resulting values and those corresponding to the maximum likelihood estimator are exponentially decreasing functions of k. Several modifications of the estimator are discussed and found consistent, but asymptotically inefficient. 相似文献
73.
Starting from Baudrillard's analysis of the ideological character inherent in all consumption, touristic consumption, for many reasons ,has a special place in this social semantic. Here, advertising plays an important if not essential role because tourism is a product consumed outside of normal time and daily social space. Therefore the social semantic asserts itselfless through the product itself than through its representation: the discourse of advertising. But advertising discourse is plural, each form having its own ideology, competing with others. Behind the commercial competition lies a competition of social classes, but with a new typology, no longer based on the capital/favor relationship. Four ideological models are analyzed and illustrated with their advertising messages: the traditional model, the clerical/executive model, the youth model, and the “intellectual class” model. 相似文献
74.
Karel Žlábek 《Journal of Economics》1956,16(3-4):392-422
Ohne ZusammenfassungGewidmet der Tschechischen Technischen Hochschule in Prag — dieser ältesten öffentlichen ingenieurwissenschaftlichen Schule Europas —zum 250-jährigen Jubiläum (1707 bis 1957) im festen Glauben an eine baldige Vereinigung aller Prager Hochschulen technischer Richtung in das organische Ganzeder Technischen Universität und in der Überzeugung von der Notwendigkeit der wirtschaftswissenschaftlichen Fakultät als eines unabtrennbaren Bestandteiles dieser Universität. 相似文献
75.
Hayek’s approach to cultural and institutional evolution has been frequently criticized because it is explicitly based on
the controversial notion of (cultural) group selection. In this paper this criticism is rejected on the basis of recent works
on biological and cultural evolution. The paper’s main contention is that Hayek employed group selection as a tool for the
explanation of selection among several equilibria, and not as a vehicle for the emergence of out of equilibrium behavior (i.e.,
altruism). The paper shows that Hayek’s ideas foreshadowed some of the most promising developments in the current literature
on the emergence of norms.
JEL Classification: B31, B41 相似文献
76.
Yélé Maweki Batana 《Revue africaine de developpement》2010,22(3):452-469
Abstract: In the last 15 years international aid donors to Africa have shifted their focus dramatically toward health and education; the share of social sector support in total aid rose from 33 per cent to 60 per cent from 1990–94 to 2000–2004 alone. If this aid has been effective, it is unlikely to be captured in GDP or income poverty figures. This paper uses the Demographic and Health Survey at multiple points in time to explore changes in well‐being in ten sub‐Saharan African countries. It compares the evolution of both assets and health which are considered as the two main dimensions of well‐being. These dimensions are simultaneously estimated using the structural equation models with latent variables that have been developed in the psychometric literature. The comparisons of well‐being across time in each country are based on the stochastic dominance analysis. The main results suggest that assets and health have improved during the last two decades in most of these countries. A decline in assets is observed for three countries while health deteriorates in two countries. The reduced poverty appears to be explained less by the aid than other factors in most cases. 相似文献
77.
Daniëlle N. M. Bleize Marjolijn L. Antheunis 《Journal of Marketing Communications》2019,25(4):403-420
Previous empirical studies have identified several factors that seem to play a role in determining purchase intent in virtual worlds; three-dimensional online environments in which users interact while represented by their avatars. So far however, a clear overview of these factors is lacking, and the question that remains is what factors affect purchase intent most. Therefore, this study aims to create an overview of factors that influence users’ purchase intent in virtual worlds, and to subsequently identify the most influential factors. To conduct this review, relevant literature was gathered using a variety of search engines and keywords. An article had to explicitly study factors influencing purchase intent in virtual worlds in order to be included in this review. This search method resulted in a selection of twelve relevant articles that were used for further analysis. Results show that perceived enjoyment, social influence, customization and ease of use are important factors that influence purchase intent in virtual worlds. Enjoyment of the virtual world, beliefs and attitudes of others, avatar customization, and easy-to-use virtual world applications can thus increase users’ willingness to purchase products in the virtual world. Practical implications as well as limitations and suggestions for future research are discussed. 相似文献
78.
Slow fashion that improves with an increasing awareness of sustainability has changed consumers' value perception and purchasing behaviours. The aim of this study is to determine slow fashion dimensions that influence consumers' value perceptions for slow fashion products and to reveal the effects of the perceived value on consumers' intentions to purchase and willingness to pay higher prices. The sample includes 725 students pursuing higher education in Turkey and Kazakhstan. Exploratory and confirmatory factor analyses were used to specify the factor structure of the variables used in the research, and structural equation modelling was used to test the hypotheses. Data analysis showed that authenticity, locality, and exclusivity aspects in Turkey and equity, functionality, locality, and exclusivity aspects in Kazakhstan contributed to perceived customer value. Perceived customer value in both groups positively affects the intention to purchase and the willingness to pay higher prices. In addition, consumers who intend to purchase slow fashion clothing are willing to pay higher prices than other products. The results suggest that consumers in different countries have different orientations that influence their perceptions of value. From this perspective, this study can provide designers with insights on the importance of making sustainable designs that are appropriate to the target market beyond the trends imposed by the global fashion industry. 相似文献
79.
Open Economies Review - To analyse the globalization-wages-inequality relationship, we extend the North-South Heckscher-Ohlin-Samuelson (HOS) model by assuming (i) that the size of the South... 相似文献
80.
This paper analyses the contribution of fundamental comparative advantage (a country-specific component) and granular comparative advantage (a firm-specific component) to European Union countries' export specialisation. We find that, on average, granular comparative advantage may explain export specialisation in 29% of industries, which account for 47% of total exports. We also show that 60% of the variation in export specialisation across countries and industries may be explained by granular comparative advantage. These results highlight that some outstanding firms may play a very important role in explaining European Union countries' export specialisation. 相似文献