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101.
AbstractI show that the three main contributions to the theory of the business of the last century – those of Cobb and Douglas (1928), Coase (1937), and Lucas (1978) – are actually complementary and can be fitted into a general model of the firm size choice as the solution to a problem of optimal allocation of decision making in the economy. Decisions require information, and the availability and cost of information drives the optimization of firm size by the relevant decision makers - managers and entrepreneurs - pursuing the maximization of profits. Trends in firm size, and their reversals, are shown to depend on the aggregate information/output ratio. 相似文献
102.
Sarit Shimony-Kanat Rosa Gofin Anna C. Kienski Woloski Wruble Leon Mann 《International journal of injury control and safety promotion》2018,25(1):53-57
Booster seat use for 4–9 year olds remains the lowest of all age groups in many countries. The objective of this study is to examine whether parents’ decision-making patterns, as measured by the Melbourne Decision Making Questionnaire, relate to car booster seat use. Israeli parents of 4–7 years old children (n = 398) answered a questionnaire about car safety and decision-making habits. Ninety per cent of parents reported having a booster seat; 70.5% reported consistent booster seat use in general and on short drives during the last month (booster seat use compliance index). Greater compliance index was positively related to a vigilant decision-making pattern, passenger compliance with rear seat belts and families with fewer children. Lower booster seat use compliance index was associated with buck-passing decision-making pattern. Health professionals and policy-makers should take into account parents’ habitual decision-making patterns when designing interventions for car booster seat compliance. 相似文献
103.
María Candelaria Gil Fariña Rosa María Lorenzo Alegría 《International Advances in Economic Research》1999,5(4):446-465
This paper studies the dynamic relationship between future volatility and implied and historical volatility using data from Alegría and Rodríguez [1997]. The methodological approach forms part of the theoretical research being carried out in numerical analysis and especially from the rational Padé approximation. This tool helps to characterize simple computational methods in order to study questions about dynamic modelization of doubly infinite series. Considering noncausal series, where the expectations provided by economic theory or empirical evidence are included in available sample data, leads to dynamic specifications suitable not only from the perspective of fitting available data, but also from their predictive performance when compared to traditionally used formulae based merely on data analysis. 相似文献
104.
Rosa Pia Fontana Colin Milligan Allison Littlejohn Anoush Margaryan 《International Journal of Training and Development》2015,19(1):32-52
In knowledge‐intensive industries, the workplace has become a key locus of learning. To perform effectively, knowledge workers must be able to take responsibility for their own developmental needs, and in particular, to regulate their own learning. This paper describes the construction and validation of an instrument (the Self‐Regulated Learning at Work Questionnaire) designed to provide a measure of self‐regulated learning (SRL) behaviour in the workplace. The instrument has been validated through a pilot study with a cohort of 170 knowledge workers from the finance industry. Results indicate that the five scales of the instrument are reliable and valid, testing a broad range of sub‐processes of SRL. The instrument can be used to identify knowledge workers who demonstrate different levels of SRL in workplace contexts for further exploration through qualitative studies and could also provide the basis of professional development tools designed to explore opportunities for self‐regulation of learning in the workplace. 相似文献
105.
106.
Green Product Innovation in Manufacturing Firms: A Sustainability‐Oriented Dynamic Capability Perspective 下载免费PDF全文
Rosa Maria Dangelico Devashish Pujari Pierpaolo Pontrandolfo 《Business Strategy and the Environment》2017,26(4):490-506
Despite environmental sustainability being identified as one of the key drivers of innovation, extant literature lacks a theoretically sound and empirically testable framework that can provide specific insights into green product innovation from a capability perspective. This study develops a theoretical framework from a sustainability‐oriented dynamic capability (SODC) perspective. We conceive SODCs as consisting of three underlying processes (external resource integration, internal resource integration, and resource building and reconfiguration) that influence the change/renewal of sustainability‐oriented ordinary capabilities (SOOCs) (green innovation capability and eco‐design capability). This study answers two key questions: which SODCs are needed to develop green innovation and eco‐design capabilities? Which of these capabilities lead to better market performance of green products? We test a structural model linking SODCs to market performance in 189 Italian manufacturing firms. First, we find that the nature of the SODC–performance link (direct or indirect) depends on the SODC type. Specifically, resource building and reconfiguration is the only SODC with a direct effect on market performance. Second, all three types of SODC affect the eco‐design capability, which mediates the link between SODCs and market performance. Third, we find that external resource integration is the only SODC affecting the green innovation capability, which mediates the link between external resource integration and market performance. Resource building and reconfiguration is the SODC with the overall (direct and indirect) highest impact on market performance. This study, among the first to consider capabilities for green product innovation under a dynamic capability perspective, provides implications for scholars, managers and policy makers. Copyright © 2016 John Wiley & Sons, Ltd and ERP Environment 相似文献
107.
108.
Maria Rosa Borges 《Atlantic Economic Journal》2008,36(1):15-30
This paper examines the ex-dividend day behavior of stock prices in the Lisbon Stock Market over the period 1990–1998, extending
on international evidence and discussing the adequacy of competing theories, considering the Portuguese institutional environment.
We find that on the ex-day stock prices fall by less than the dividend, which is in line with the findings of several studies
based on US and non-US data. The main contributions of this paper are: (1) the rejection of a tax explanation for the stock
price drop, because it is inconsistent with the Portuguese tax regime; (2) considering the very small stock price tick and
the fact that dividends are always integer multiples of tick size, the discreteness hypothesis of Bali and Hite (Journal of
Financial Economics 47(2):127–159, 1998) is also ruled out as a possible explanation for ex-day price movements. We find no
evidence of tax related clientele effects. We propose that ex-day price behavior may be an anomaly, reflecting a less than
efficient market with low liquidity levels, price stickiness, and insipid arbitrage trading.
相似文献
Maria Rosa BorgesEmail: |
109.
Rosa Duarte José Julián Escario José Alberto Molina 《International Advances in Economic Research》2005,11(4):399-415
This paper identifies the determinants affecting the adolescent populations' decision regarding whether or not to consume
illegal drugs. The authors estimate a simultaneous Type II Tobit model for each sample substance, including marijuana, LSD,
amphetamines, cocaine, volatile substances, and heroine. The data are drawn from three Spanish Surveys on Drug Use in the
School Population conducted in 1994, 1996, and 1998. The results indicate that illegal drug use among Spanish adolescents
is clearly determined by economic variables. It is similarly determined by other sociodemographic variables, such as personal
habits, family environment, and the receipt of information regarding the negative consequences of drug use.
This paper was partially written while José Alberto Molina was Visiting Researcher at the Fundación de Estudios de Economía
Aplicada-FEDEA (Madrid, Spain), to which he would like to express his thanks for the hospitality and facilities provided.
The authors are grateful to two anonymous referees for their helpful observations on an earlier version of this paper. Similarly,
Namkee Ahn, as well as various participants at the XIX Spanish Health Economics Meeting (Zaragoza, Spain) and at the 2001
Annual Meeting of the Population Association of America (Washington DC), have all offered valuable comments and suggestions.
Finally, the authors would like to express their gratitude for the financial support provided by the Spanish Ministry of Education-CICYT
and the European Commission (Project FEDER 2FD97-2057). The usual disclaimer applies. 相似文献
110.
Manuel?Montenegro Ana?Colubi María?Rosa Casals María?ángeles GilEmail author 《Metrika》2004,59(1):31-49
In this paper we will consider hypothesis-tests for the (fuzzy-valued) mean value of a fuzzy random variable in a population. For this purpose, we will make use of a generalized metric for fuzzy numbers, and we will develop an approach for normal fuzzy random variables, and two different approaches for the case of fuzzy random variables taking on a finite number of different values. A real-life example illustrates the use of the last two approaches. Finally, a comparison between the introduced techniques is developed by means of simulation studies leading to close inferential conclusions.Acknowledgements.The research in this paper has been partially supported by MCYT Grants BFM2002-01057 and BFM2001-3494. Their financial support is gratefully acknowledged. The authors are sincerely grateful to their colleague Gil González-Rodríguez for all his comments and suggestions in connection with this paper; his scientific support has been very valuable. The authors want also thank the referees of the first version of the paper because of their useful hints to improve it. 相似文献