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   36篇
  免费   4篇
财政金融   1篇
计划管理   14篇
经济学   10篇
运输经济   4篇
旅游经济   1篇
贸易经济   7篇
农业经济   2篇
经济概况   1篇
  2022年   1篇
  2021年   1篇
  2020年   5篇
  2019年   3篇
  2017年   1篇
  2016年   3篇
  2015年   3篇
  2014年   4篇
  2013年   3篇
  2012年   4篇
  2011年   1篇
  2010年   2篇
  2009年   2篇
  2008年   2篇
  2007年   1篇
  2005年   1篇
  2004年   1篇
  1998年   1篇
  1995年   1篇
排序方式: 共有40条查询结果,搜索用时 93 毫秒
1.
This research introduces the multi-product capacitated facility location problem with general production and building costs (MP-CFLPGC). The MP-CFLPGC extends previous problems found in the literature by including multiple products and general production and building cost functions that allow the modeling of different behaviors like economies of scale and congestion. The MP-CFLPGC is formulated as a mixed integer linear program (MILP). To evaluate the performance of the proposed formulation we analyze the results of a commercial optimizer on a set of 288 randomly generated test instances that resemble the Colombian cement industry supply chain. After one hour the optimizer achieved an optimality gap of 1.0 % or less in 55 % out of the 288 test instances. On average the optimality gap was 3.57 %. Additionally, we propose a randomized mathematical-programming-based heuristic for the test instances where the MILP formulation presents significantly high optimality gaps.  相似文献   
2.
Even though electrical companies attain a top ranking in the publication of CSR reports, they are often accused of 'green‐washing' due to their bad environmental reputation. The current economic crisis is testing their real CSR commitment more than ever, especially when this goes beyond its economic consequences. Based on a worldwide sample of electrical companies, we are going to study why companies are being socially responsible. We wish to know if it is due to the impact on the firms' performance or whether there are other motives (legitimation, improving their reputation) that lead companies to carry out these practices. We will also consider if it changes across the kind of CSR action considered. The results show that there is an economic justification beyond the socially responsible behaviour of the electrical companies. Additionally, most kinds of CSR action (community, diversity, corporate governance, product responsibility) are also carried out looking for economic rewards. However, the CSR actions oriented to the environment are mainly motivated by their need to improve their image and reverse their negative impact. Copyright © 2014 John Wiley & Sons, Ltd and ERP Environment  相似文献   
3.
4.
While the aggregate effects of sudden stops and international financial crises are well known, the disaggregated channels through which they work are not well explored yet. In this paper, using job flows from a sectoral panel dataset for four Latin American countries, we find that sudden stops are characterized as periods of lower job creation and increased job destruction. Moreover, these effects are heterogeneous across sectors: we find that when a sudden stop occurs, sectors with higher dependence on external financing experience lower job creation. In turn, sectors with higher liquidity needs experience significantly larger job destruction. This evidence is consistent with the idea that dependence on external financing affects mainly the creation margin and that exposure to liquidity conditions affects mainly the destruction margin. Overall, our results provide evidence of financial frictions being an important transmission channel of sudden stops and in the restructuring process in general.  相似文献   
5.
This paper reviews and analyses the rationale for an innovation policy in services. It focuses on the relevance of the various categories of market and system failures, on the basis of economic arguments and some empirical evidence at EU level. Results show that market and system failures affect service innovation, so that there are no economic reasons supporting any discrimination of policy actions against service activities. Moreover, some of the market and system failures may be even more relevant in the field of services than of goods, although differences between categories of services should be also taken into consideration.  相似文献   
6.
Knowledge is considered an essential resource in a company’s internationalization process, both from the sequential point of view and from the perspective of International Entrepreneurship. This paper proposes a model to integrate the influence of knowledge on international behavior based on proposals taken from the literature on organizational learning in multinational companies. The model comprises several phases: prior knowledge; acquisition of new knowledge; integration of both sets of knowledge; action and feedback. Using the proposed model, different courses of action are identified for further research into the process of company internationalization.  相似文献   
7.
Within innovation strategies, ecodesign and ecoinnovation are becoming very relevant in recent years as they seek to reduce the environmental impact of both products and production processes by using new technologies and ways of working that contribute to sustainable development and at the same time help to promote the competitiveness of companies. In this framework, the objective of this paper is to analyze the impact that the strategies of environmental innovation in products and processes have on the profitability and the market value of the companies, considering the moderating role that the munificence of the industry has in this relationship. Using the generalized method of moments, the results obtained from a sample of 6,454 international companies during the period 2002–2017 show that although environmental innovation strategies do not entail higher returns, they are well valued by the capital market. This was especially true in environments with greater economic growth and availability of resources, that is, in munificent environments.  相似文献   
8.
This research sets out to analyse environmental disclosure in the banking industry by considering the varieties of capitalism framework. This approach is concerned with the way companies interact strategically to resolve coordination issues arising from their operations, and it is supported by prior research. This is a fruitful perspective for exploring the association between country‐level factors and disclosure by firms, such as environmental reporting. This research is based on an international sample of countries operating in coordinated market economies (CMEs) and liberal market economies (LMEs). The results obtained show that financial institutions operating in CME countries are involved in more environmental matters than banks domiciled in LME countries. As regards the moderating variables, the evidence shows that women on the boards of banks in CME countries encourage the reporting of environmental information, as predicted. Nonetheless, and contrary to our expectations, members with specific skills on boards within CME cultures do not favour greater disclosure of environmental information compared with those on boards of banks operating in LME contexts.  相似文献   
9.
Over the past years there has been a debate on the relationship between the environmental and financial performance of businesses, but researchers have not reached any agreement. This research attempts to explore this relationship, especially as in recent years there has been controversy about how this relationship has been affected by the global economic crisis. Taking into account that successfully limiting global climate change to safe levels in the long term is likely to require connecting climate change policies to sustainable development strategies, this paper focuses on the performance of environmental policies. We used a sample of 855 international companies in sectors of intensive greenhouse gas/CO2 emissions. Specifically, we used data from the Forbes Global 2000 Index and Carbon Disclosure Project data from 2006 to 2009. The data analysis was performed using panel data methodology. The results obtained show that in times of economic crisis, the synergy between environmental and financial performance is higher, meaning that companies must continue to invest in sustainable projects in order to enhance relations with their stakeholders, leading to higher economic profits. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment  相似文献   
10.
ABSTRACT

In this paper we explore the R&D–innovation–productivity linkage for the Colombian manufacturing industry, paying special attention to the role of human capital. Using data from two firm-level surveys, the Survey of Development and Technological Innovation (EDIT) and the Annual Manufacturing Survey (EAM), we extend the model of Crépon, Duguet, and Mairesse [1998. ‘Research, Innovation and Productivity: An Econometric Analysis at the Firm Level.’ Economics of Innovation and New Technology 7 (2): 115–158] (hereafter CDM) by including human capital at the investment decision stage. We implement an instrumental variable methodology to correct the potential endogeneity that may arise with the inclusion of human capital. Our results suggest that human capital has a causal effect on research and development (R&D) investment decisions, the innovation behavior of the firm, and increases the labor productivity of the firm. The conclusions highlight the relevance of human capital in the surrounding literature which stands in contrast to prior work that has not included this variable.  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