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121.
Tessaleno Devezas Francisco Cristovão L. de Melo Maria Luisa Gregori Maria Cristina V. Salgado Joana R. Ribeiro Christian B.C. Devezas 《Technological Forecasting and Social Change》2012,79(5):963-985
This article is geared toward shedding some more light on what may be the next space race and its contours.Space flight is undoubtedly a human achievement of the second half of the 20th century, and probably the most audacious one of the past century. The space race started suddenly in the 1950s and has grown explosively during the following two decades, but decreased steadily after the 1970s. After the 1990s, however, we have seen a shy rebirth of space-related activities, when many other actors (states) entered the stage, adding up to the agonizing role of the two-actor piece that we have witnessed during the so-called Cold War.The opening years of the 21st century provided a more complex narrative for space exploration. At the start of the new millennium a new technosphere [1] emerged, dominated by what is used to be called as the Information and Communications Technologies (ICT), with the Internet playing the leading role among the bandwagon of technological novelties that appeared during the twilight of space activities. In despite of the fact that artificial satellites represent the very backbone of the global communications system, space activities seem to play a secondary role amidst the apparently accelerated rate of change concerning the technological systems of the present technosphere. But, as it is demonstrated in this paper, things are changing, and very probably a renewed space race will unfold in the coming decades.A question may be placed: what happened? Why the Earth stood still with regard to the race toward the cosmos? Answer: futurists, even prestigious ones like Herman Kahn and Arthur Clarke, did not consider the existence of socioeconomic long waves (Kondratieff waves, or K-waves for short) with their two decades long economic downturn, which has contributed to the deceleration of space-related activities.Analyzing the worldwide evolving scenario of space-related activities during the last eighty years under the framework of the succeeding K-waves and applying some technological forecasting tools, namely the logistic analysis, technological surveillance and intensive data mining, scrutinizing more than 7500 events occurred in the period 1930–2010 related with space activities, it is demonstrated that the space race like the one that we have witnessed until now is a natural growth process that has saturated at the dawn of this century. The same analysis demonstrates that a new growth process in this field might be nowadays under way with contours very different from that imagined by futurists and science fiction writers sixty years ago. Also the main trends in the usage of launching vehicles and satellites are framed and discussed in this paper. 相似文献
122.
中国被忽视的非正规经济:现实与理论 总被引:5,自引:7,他引:5
中国的“非正规经济”就业人员(即没有工作保障,缺少福利和不受国家劳动法保护的劳工)已占今天2.83亿城镇就业人员总数中的1.68亿,比正规就业人员要多出一倍半。但是,今目的中国国家统计机构尚未真正正视非正规经济就业人员统计。其部分原因是当前的主流经济(以及社会)理论——即主要来自20世纪60年代在美国盛行的“二元经济”理论、“三部门理论”和“橄榄型”社会结构理论——的误导。这些理论共同构成了50年代和60年代风行美国的“现代化”模式。本文扼要论述该模式的关键论点,进而回顾70年代和80年代发展经济学“革命”中有关学者对其所作的批评,以及后来新古典经济学在美国新保守主义领导下进行的“反革命”辩驳,重在揭示论争双方的意识形态化偏颇,并突出各自的洞见,提倡适当结合双方正确的见解,由此建立去意识形态化的理论观点,以助于理解今天非正规经济的现实。 相似文献
123.
Amelie C. Wuppermann 《The Scandinavian journal of economics》2017,119(4):855-881
Economic theory predicts that private information on risks in insurance markets leads to adverse selection. To counterbalance private information, insurers collect and use information on applicants to assess their risk and to calculate premiums in an underwriting process. Using data from the English Longitudinal Study of Ageing (ELSA), this paper documents that differences in the information used in underwriting across life insurance, annuity, and health insurance markets attenuate private information to different extents. The results are in line with – and might help to reconcile – the mixed empirical evidence on adverse selection across these markets. 相似文献
124.
Relationships in business markets: Exchange episodes,value creation,and their empirical assessment 总被引:1,自引:0,他引:1
James C. Anderson 《Journal of the Academy of Marketing Science》1995,23(4):346-350
Conclusion David Wilson (1995) has provided us with much grist for thought with his integrated framework for customer-supplier relationship
development. In focusing on which constructs are “active” and therefore most meaningful at each stage, he has opened a new
vista for research in this area. Our models and empirical research ought to reflect this, but to date they largely have not.
I have suggested qualitative, longitudinal research as a preferred next step in gaining the knowledge that we will need to
make field-survey, longitudinal research worthwhile.
Wilson also is to be lauded for drawing greater attention to value creation as a central undertaking in customer-supplier
relationships. Understanding and actualizing value creation (and value sharing) are critical aspects of the market-sensing
and customer-linking capabilities in market-driven organizations (Day 1994), yet the mechanisms underlying them and the methodologies
for accurately assessing them remain largely unknown. Here, particularly for tool development research, it would seem to be
an opportune time for business marketing academics and practitioners to form their own collaborative relationships for mutual
gain.
His research interests are in working relationships between firms in business markets and measurement techniques. His articles
have appeared inHarvard Business Review, Journal of Marketing, Journal of Marketing Research, Management Science, Psychological Bulletin, andPsychometrika, among others. He has been vice president of the Business Marketing Division of the American Marketing Association and is
a fellow of the American Psychological Association. 相似文献
125.
While innovators may rush to purchase many new products, most consumers are more conservative and do not want to buy into fads but purchase only those new products that are viable. How do the majority of consumers make judgments about whether they will adopt an innovation? This article examines the evaluative aspects of adoption as a means for better understanding consumer adoption and the market factors that may influence the success of an innovation. This research introduces a conceptual model that shows how consumers’ evaluation of product category attractiveness affects the adoption decision for really new products. These consumer evaluations are based on the attributes of the product category (“extrabrand” attributes) rather than brand attributes. Results from a test of the model indicate that consumers do use extrabrand attributes to assess the attractiveness of innovative new products. 相似文献
126.
A dyadic study of interpersonal information search 总被引:17,自引:0,他引:17
Mary C. Gilly John L. Graham Mary Finley Wolfinbarger Laura J. Yale 《Journal of the Academy of Marketing Science》1998,26(2):83-100
Although interpersonal word-of-mouth communication, by definition, takes place between two people, rarely has the phenomenon of word of mouth been studied using both members of the dyad. Building on the literature, this article offers a model of active interpersonal information search that is tested by using a method in which information seeker and source perceptions were obtained. Source characteristics were important determinants of interpersonal influence, but seeker characteristics also played an important role. Interestingly, it proved useful to distinguish between demographic and attitudinal homophily of seeker and source as the former was inversely and the latter directly related to interpersonal influence. Mary C. Gilly is an associate professor in the Graduate School of Management and associate dean of Graduate Studies at the University of California, Irvine. Her Ph.D. is in marketing from the University of Houston. Her research interests include the unintended effects of marketing actions, such as the effects of advertising on employees. She also has interests in services marketing, such as customer service, including consumer complaint handling, and cross-cultural service encounters. Her work has been published in theJournal of Marketing, theJournal of Consumer Research, theJournal of Business Research, and other academic journals. John L. Graham is a professor in the Graduate School of Management at the University of California, Irvine. His Ph.D. is in marketing from the University of California, Berkeley. His primary research interests regard international marketing, international business negotiations, and structural equations modeling. His work has been published in theJournal of Marketing, theJournal of Consumer Research, Marketing Science, theJournal of International Business Studies, Management Science, and other academic journals. Mary Finley Wolfinbarger is an associate professor at California State University, Long Beach and is doing research on the topics of internal marketing and gift giving. She teaches Marketing Principles and Marketing Research. She received her Ph.D. in marketing from the University of California, Irvine. Her work has appeared in theJournal of Marketing and other academic journals. Laura J. Yale came to Fort Lewis College in 1991. She holds degrees in Hotel, Restaurant, and Travel Administration from the University of Massachusetts, Amherst, and received her Ph.D. from the University of California, Irvine. She teaches a variety of courses in Marketing and Travel and Tourism Administration, including Marketing Research, International Marketing and Services. Her industry experience and most of her research interest are in the services sector, particularly the tourism industry. She is on sabbatical leave this academic year, writing an introductory textbook on the tourism industry. She will return to teaching in September 1998. 相似文献
127.
128.
This paper explores how poor working conditions impact sickness absence through their effect on health. Our contribution is two-fold. First, we develop a static theoretical model based on the concept of health capital, wherein poor working conditions are partially compensated by higher wages. According to our model, the effect of working conditions on sickness absence is ambiguous. Second, we apply our model to the case of working time arrangements and test the effect of working irregular schedules or work around the clock on sickness absence, using data from the French Labor Force Survey on a specific population (male manual workers in private sector). As heterogeneity may lead to severe bias, we use propensity score matching methods. Our estimates show that working irregular schedules has a significant impact on sickness absence. The results are more mitigated for work around the clock. In any case, the extent crucially depends on age. 相似文献
129.
In this paper, we present estimates of the Human Development Index and the Gender-Related Development Index in the Autonomous Communities of Spain. Our case study of Spain, a developed country with clear gender and regional differences, demonstrates the importance of adjusting human development indices in accordance with gender discrimination and regional inequalities. We also show the significance of the income component in assessing the development level of women in countries like Spain, where lack of employment or low remuneration are the chief characteristics of women's inequality. Our analysis makes clear that the Gender-Related Human Development Index has limited applicability in developed countries; it also illustrates the need for alternative variables or models to assess inequality in those countries. 相似文献
130.
The political economy of rural health care in China. 总被引:1,自引:0,他引:1
R C Hsu 《Review of Radical Political Economics》1977,9(1):134-140