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   40篇
  免费   1篇
财政金融   2篇
工业经济   1篇
计划管理   7篇
经济学   6篇
运输经济   1篇
旅游经济   7篇
贸易经济   10篇
农业经济   1篇
经济概况   6篇
  2023年   2篇
  2020年   2篇
  2019年   4篇
  2018年   3篇
  2017年   2篇
  2015年   3篇
  2014年   2篇
  2013年   5篇
  2012年   2篇
  2011年   1篇
  2010年   1篇
  2007年   1篇
  2005年   1篇
  2003年   1篇
  2000年   1篇
  1998年   1篇
  1994年   1篇
  1993年   2篇
  1992年   1篇
  1990年   1篇
  1988年   1篇
  1986年   1篇
  1974年   1篇
  1971年   1篇
排序方式: 共有41条查询结果,搜索用时 15 毫秒
1.
This paper concerns the behavior of gold and silver prices on a daily, weekly and monthly time span during January 1970 to December 1989. The methodology consists of extracting the predictive power of time series of changes in past prices for obtaining optimal forecasts for next-period changes in prices. Optimizations are made in the context of information theory via minimizing the degree of diversity between the actual and predicted changes in prices. This methodology has merit in that it does not rest on, generally speaking, unacceptable assumptions regarding the shape of the distribution, stationarity of variance or its existence. The behavior of gold and silver prices are studied during peak to trough and trough to peak of the business cycles over 1970–1989. It is generally shown that information contained in past prices of gold and silver does not allow one to predict next-period changes in prices in the short run. However, longer-term predictions are possible. This study further reveals that as the length of the time interval expands, gold prices exhibit a higher degree of dependency on past prices than silver.  相似文献   
2.
As cities look at various industries to strengthen their economies, officials have begun to examine conventions and gaming more closely as they have often been considered “recession-proof.” This study utilizes time series regression to analyze the effects of convention attendance and hotel occupancy on monthly gaming revenues for Las Vegas from 2002 to 2013. Three commonly held opposing viewpoints in trade literature are that conventions reduce, augment, or complement gaming. These viewpoints produced the hypotheses for this study. It was found that convention attendance had no significant relationship with gaming revenue; however, citywide hotel occupancy was found to have a significant positive relationship with gaming revenue. This finding rules out the reduction and augmentation hypotheses.  相似文献   
3.
ABSTRACT

By developing an international market and significant differences between countries in this regard, segmentation becomes an increasingly important concept in marketing. In this article, the international market of Iranian furniture industry is segmented and cross-exporting strategies are developed to increase the market share of Iranian furniture in each segment. To achieve this, two distance functions are introduced based on correlation between export groups to cluster countries with k-means algorithm. After market segmentation for increasing sales in each segment, cross-exporting strategies are predicted by extracting association rules in each segment based on Apriori algorithm to set export baskets.  相似文献   
4.
The past two decades have seen a dramatic acceleration in the pace of marketplace change. Companies have abandoned the old hierarchical model, with its clean functional divisions and clear lines of authority, and adopted flatter, less bureaucratic structures. But if most organizations have begun to adapt to the uncertainty of rapid change, most managers have not. They remain locked into the mechanical mind-set of the industrial age--that is, they assume that any management challenge can be translated into a clearly defined problem for which an optimal solution can be found. That approach works in stable markets and even in markets that change in predictable ways. Today's markets, however, are increasingly unstable and unpredictable. Managers can never know precisely what they're trying to achieve or how best to achieve it. They can't even define the problem, much less engineer a solution. The challenges facing the general manager in these circumstances, the authors argue, resemble those typically confronted by design managers. In the unpredictable world of research and design, neither the flow of the development process nor its end point can be defined at the outset. Rather than the traditional analytical approach to management, the design world requires an interpretive one. And that approach is equally well suited to rapidly changing, unpredictable markets. The authors describe how companies such as Levi Strauss & Company and Chiron Corporation have stayed at the top of their industries by adopting just such an interpretive approach to management.  相似文献   
5.
U.S. Treasury inflation-indexed bonds are designed to provide a stable real return before taxes. A comparison between these bonds and conventional bonds reveals that the effective real yield of U.S. Treasury inflation-indexed bonds is attractive. The econometric results suggest, however, that the real rate provided by U.S. Treasury inflation-indexed bonds is not independent of inflation, implying that the Fisher hypothesis is contradicted by the data. An implication of negative correlation between the real rate and inflation is that the time to buy U.S. Treasury inflation-indexed bonds is when inflation is low. While the yields on U.S. Treasury inflation-indexed bonds are shown to reflect inflation by a lag of about one month, nominal interest rates do not fully adjust to inflation. The author would like to thank Richard A. Cohn and Mahmoud Wahab for their advice and comments.  相似文献   
6.
This research tests the role of perceived support from multinational corporations and host-country nationals for the adjustment of expatriates and their spouses while on international assignments. The investigation is carried out with matched data from 134 expatriates and their spouses based in foreign multinationals in Malaysia. The results highlight the different reliance on support providers that expatriates and their accompanying spouses found beneficial for acclimatizing to the host-country environment. Improved adjustment in turn was found to have positive effects on expatriates' performance. The research findings have implications for both international human resource management researchers and practitioners.  相似文献   
7.
We use data from experiments on finitely repeated dilemma games with fixed matching to investigate the effect of different types of information on cooperation. The data come from 71 studies using the voluntary contributions paradigm, covering 122 data points, and from 18 studies on decision-making in oligopoly, covering another 50 data points. We find similar effects in the two sets of experimental games. We find that transparency about what everyone in a group earns reduces contributions to the public good, as well as the degree of collusion in oligopoly markets. In contrast, transparency about choices tends to lead to an increase in contributions and collusion, although the size of this effect varies somewhat between the two settings. Our results are potentially useful for policy making, because they provide guidance on the type of information to target in order to stimulate or limit cooperation.  相似文献   
8.
In the paper, we solve the problem of computing the maximin efficient design with respect to the class of all orthogonally invariant criteria. It turns out that on a finite experimental domain, the maximin efficient design can be computed by the methods of semidefinite programming. Using this approach, we can deal with the non-differentiability inherent in the problem, due to which the standard iterative procedures cannot be applied. We illustrate the results on the models of polynomial regression on a line segment and quadratic regression on a cube.  相似文献   
9.
Many consumers express concerns about the welfare of animals in agriculture, but often refrain from purchasing animal-friendly alternatives that address their concerns. To support consumers in making choices in line with their values and attitudes, this study approaches consumer animal-friendly product choice as a dilemma between maximizing the buyer's self-interest and maximizing societal interest. To address this social dilemma, we developed and tested positioning strategies that reinforce the animal welfare label with complementary consumption values (functional, emotional, social, and epistemic). The results from a choice experiment with Dutch chicken meat shoppers showed that two strategies—emotional and epistemic—effectively increase consumer value perceptions. These insights imply that animal-friendly products positioned to invoke emotion or curiosity drive consumers towards animal-friendly product choices, and that these strategies are most effective for consumers who base their choice solely on maximizing either self-interest or societal interest.  相似文献   
10.
Reward structures can have a significant impact on the performance of new product development (NPD) teams. However, there are several gaps in our understanding of how different types of extrinsic rewards influence the creative performance of NPD teams. Drawing on key theoretical objectives for advancing rewards-creativity research in general, and NPD research in particular, this study incorporates a cognitive and behavioral view of rewards use. In so doing, we distinguish between three kinds of extrinsic rewards: financial, recognition, and social (based on their properties). We then draw upon self-determination theory to hypothesize the differential effects of three types of extrinsic rewards on intrinsic task motivation, and subsequently the creative performance of NPD teams. The proposed framework is tested using two rounds of survey data from 238 members of 64 NPD teams in the high-tech industry. Results of a multilevel structural equation modeling (MLSEM) analysis show that financial rewards have a negative relationship with intrinsic task motivation, while recognition and social rewards have a positive influence. Complexity of the product being developed not only helps to mitigate the negative effects of financial rewards on intrinsic task motivation, but it also reduces the positive effects of social rewards on intrinsic task motivation. Intrinsic task motivation is found to have a positive effect on NPD creative performance in terms of both the developed product’s degree of innovation and its quality. Theoretical and managerial implications are explored.  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