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   232篇
  免费   21篇
财政金融   27篇
工业经济   21篇
计划管理   25篇
经济学   48篇
综合类   3篇
运输经济   6篇
旅游经济   17篇
贸易经济   81篇
农业经济   3篇
经济概况   22篇
  2023年   6篇
  2021年   5篇
  2020年   6篇
  2019年   13篇
  2018年   17篇
  2017年   22篇
  2016年   19篇
  2015年   8篇
  2014年   16篇
  2013年   44篇
  2012年   9篇
  2011年   15篇
  2010年   14篇
  2009年   17篇
  2008年   7篇
  2007年   6篇
  2006年   1篇
  2005年   1篇
  2004年   3篇
  2003年   1篇
  2002年   2篇
  2001年   5篇
  2000年   3篇
  1999年   1篇
  1998年   1篇
  1997年   1篇
  1993年   1篇
  1992年   1篇
  1991年   2篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1984年   1篇
  1978年   1篇
  1977年   1篇
排序方式: 共有253条查询结果,搜索用时 125 毫秒
51.
Growth management is a challenging but critical corporate strategy facing the fast economic growth in emerging markets. An overemphasis on growth would lead to the growth fetish, where growth is unqualified and seen as an end in itself. By examining the performance of 105,260 firms in key sectors of Brazil, Russia, India, and China (BRIC) from 2002 to 2011, this study presents quantitative evidence that supports a profit-oriented strategy as a more effective path to sustained profitable growth in emerging markets. To further support this argument, this study also provides qualitative evidence of a group of 70 sustained high-performing firms that are superior to their peers (the top 500 private companies in each of the BRIC countries) in terms of profit, growth, market share, and efficiency over a 10-year period. The study shows that sustained profitable growth requires qualified sales growth (i.e., organic growth), competence-based and competence-enhancing growth, and continuous product diversification.  相似文献   
52.
Korean thermal power has had a prominent position in energy policies for the past decades. However, pollutants from the combustion of fossil fuels used in converting thermal energy into electrical energy have undesirable effect on the environment. This paper applies fuzzy set theory (FST) to identifying the significance of various environmental impacts using a specific case study of the electric power utilities in Korea. To this end, we consider nine environmental impacts: mortality, morbidity, forest, agricultural production, materials, visibility, thermal discharge water, landscape, and global warming. A survey of randomly sampled 1,000 households was administrated to obtain value judgments from FST about the environmental impacts of a thermal power plant. The overall results show that global warming is the most important attribute in environmental effect-related decision-making processes and followed by morbidity and mortality in order. The implications of the results for electric power utilities are also discussed. We found that the work and results can provide valuable insights for major decision making in energy and environmental planning of the electric power utilities.  相似文献   
53.
This research analyzes amenity values of spatial configurations of forest landscapes over space and time in the Southern Appalachian Highlands using geographically weighted regression (GWR) in a hedonic housing-price framework with a census-block group (CBG) dataset. Results show that housing-price response to mean forest-patch size and forest-patch density increased substantially between 1990 and 2000 in a few specific areas with economically significant amenity values. The spatial and temporal dynamics of the resulting amenity-value estimates are evaluated for potential use as site-selection indicators for implementation of forest conservation programs.  相似文献   
54.
This study investigated young female consumers' beauty product shopping behavioural patterns, their perceived importance of product attributes, and their attitude towards and purchase of natural beauty products. This study also examines whether consumers' product attitudes and shopping behaviours are influenced by their health and environmental consciousness. Data were collected from a convenience sample of 210 female college students enrolled at a south‐eastern university in the US. In order to examine the impacts of both health and environmental consciousness on other selected variables, the respondents were divided into four groups based on their scores on the two variables, and a series of analysis of variance were conducted to compare characteristics of the four groups. The results showed that health and environmental consciousness significantly influenced the importance placed on beauty product attributes. Additionally, those with a high level of both health and environmental consciousness were significantly more positive in their evaluations than those with low scores on both variables in their perceptions of natural beauty products. Those with low scores on both variables were significantly less willing than the other groups to pay more for natural beauty products. Analysis of variance results also indicated that the two groups with a high level of environmental consciousness purchased natural beauty products more frequently than those with a low level of health and environmental consciousness, indicating a relatively stronger impact of environmental consciousness than health consciousness on frequency of natural beauty product purchases. Health and environmental consciousness were both significantly related to a respondent's perceived level of knowledge of beauty products and ability to distinguish natural from conventional beauty products.  相似文献   
55.
Perceived Crowding Level (PCL) is an indicator of the social carrying capacity of recreational sites such as National Parks. Using a sample of national-level visitor survey data across 21 National Parks in South Korea, this paper aims to apply a multilevel ordered logit model as a method in testing for statistical relationships between the PCL and the covariates, accounting for site- and individual-specific heterogeneity. The results hint that levels of perceived crowding in South Korean National Parks are related to factors such as the behaviour of other users and the quality of park facilities such as comfort in accommodation. The measured level of heterogeneity can provide useful information about the level (nation-wide or park-specific) of intervention policies and management strategies.  相似文献   
56.
Aims: This study investigated annual medical costs using real-world data focusing on acute heart failure.

Methods: The data were retrospectively collected from six tertiary hospitals in South Korea. Overall, 330 patients who were hospitalized for acute heart failure between January 2011 and July 2012 were selected. Data were collected on their follow-up medical visits for 1 year, including medical costs incurred toward treatment. Those who died within the observational period or who had no records of follow-up visits were excluded. Annual per patient medical costs were estimated according to the type of medical services, and factors contributing to the costs using Gamma Generalized Linear Models (GLM) with log link were analyzed.

Results: On average, total annual medical costs for each patient were USD 6,199 (±9,675), with hospitalization accounting for 95% of the total expenses. Hospitalization cost USD 5,904 (±9,666) per patient. Those who are re-admitted have 88.5% higher medical expenditure than those who have not been re-admitted in 1 year, and patients using intensive care units have 19.6% higher expenditure than those who do not. When the number of hospital days increased by 1?day, medical expenses increased by 6.7%.

Limitations: Outpatient drug costs were not included. There is a possibility that medical expenses for AHF may have been under-estimated.

Conclusion: It was found that hospitalization resulted in substantial costs for treatment of heart failure in South Korea, especially in patients with an acute heart failure event. Prevention strategies and appropriate management programs that would reduce both frequency of hospitalization and length of stay for patients with the underlying risk of heart failure are needed.  相似文献   
57.
The present research builds upon the touch literature to show that the salience of haptic product attributes related to product surface texture (smooth, rough) and weight (light weight, heavy weight) influence consumer product impressions. We propose that haptic cue congruity across texture and weight drive consumer product impressions depending on a consumer's need for touch (NFT). We show that high autotelic‐NFT consumers who touch for sensory pleasure enjoyed the incongruity between smooth texture and heavy weight haptic cues, and consequently showed favorable evaluations towards exciting brands. In contrast, low autotelic‐NFT consumers prefer the anticipated match between smooth texture and light weight haptic cues, which conformed to their expectation about the nature of a sophisticated brand personality. Further, we show how the interactive effect of haptic attributes and a consumer's autotelic‐NFT on willingness to purchase is mediated by product personality. Implications for theory and practice are discussed.  相似文献   
58.
We show that, in a minimum effort game with incomplete information where player types are independently drawn, there is a largest and smallest Bayesian equilibrium, leading to the set of equilibrium payoffs (as evaluated at the interim stage) having a lattice structure. Furthermore, the range of equilibrium payoffs converges to those of the deterministic complete information version of the game, in the limit as the incomplete information vanishes. This entails that such incomplete information alone cannot explain the equilibrium selection suggested by experimental evidence. We thank Atila Abdulkadiroglu, Hans Carlsson, Ani Guerdjikova and an anonymous referee for helpful comments. Part of this work was done while Asheim was visiting Cornell University, which hospitality is gratefully acknowledged.  相似文献   
59.
About 20% of residential real estate transactions in North America are in‐house transactions, for which buyers and sellers are represented by the same brokerage. We examine to what extent in‐house transactions are explained by agents' strategic incentives as opposed to matching efficiency. Using home transaction data, we find that agents are more likely to promote internal listings when they are financially rewarded and such effect becomes weaker when consumers are more aware of agents' incentives. We further develop a structural model and find that about one third of in‐house transactions are explained by agents' strategic promotion, causing significant utility loss for home buyers.  相似文献   
60.
In this paper, we estimate the wage penalty of skill mismatches among young Korean workers using propensity score matching (PSM) and ordinary least squares (OLS) methods. OLS estimates suggest that a moderate wage penalty results from skill mismatches: 3.8 percent for men and 5.6 percent for women. In contrast, PSM estimates suggest a weakly significant wage penalty for men and women only when kernel matching (KM) is used, but not when nearest neighbor matching(NNM) or radius matching (RM) techniques are used. These results contradict the findings of previous studies and suggest that there may not be a substantial wage penalty associated with skill mismatches.  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