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In this paper we provide a theoretical analysis of effects of applying different forecast diversification methods on the structure of the forecast error covariance matrices and decomposed forecast error components based on the bias- variance- Bayes error decomposition of James and Hastie. We...
Persistent link: https://www.econbiz.de/10009429663
In this paper we provide experimental results and extensions to our previous theoretical findings concerning the combination of forecasts that have been diversified by three different methods: with parameters learned at different data aggregation levels, by thick modeling and by the use of...
Persistent link: https://www.econbiz.de/10009429665
relationship between the in-house IT department and other parts of the business. Design/methodology/approach – In this paper, IT …
Persistent link: https://www.econbiz.de/10009429683
The combination of forecasts is a well established procedure for improving forecast performance and decreasing the risk of selecting an inferior model out of an existing pool of models. Work in this area mainly focuses on combining several functionally different models, but some publications...
Persistent link: https://www.econbiz.de/10009429719
processes on a global scale. This study investigates the extent to which e-business tools of the e-marketplace are used by … channel members in the retail sector for business-to-business supply chain management (SCM). The study is based on a survey …
Persistent link: https://www.econbiz.de/10009429823
Globalization and the Internet are creating a new form of network organization characterized by networks of cooperating and competing firms. The concept of network organization advocates flexible and open organizational structures that would improve coordination among organizational units and...
Persistent link: https://www.econbiz.de/10009429828
In electronic markets, the Internet creates new network structures that enable firms to integrate cross-functional activities at relatively low cost and eliminate non-value-adding activities. However, there is little empirical evidence on how structural characteristics of network organization...
Persistent link: https://www.econbiz.de/10009429847
industries. Tourism and hospitality have dramatically changed by the ICTs and the Internet and gradually emerge as the leading …
Persistent link: https://www.econbiz.de/10009429703
secondary aim was to understand whether the prevailing business state of crisis or growth affected the attitudes and behaviours … business states of crisis and growth can have a positive impact on some people and encourage them to adopt performance …
Persistent link: https://www.econbiz.de/10009429705
In this paper we turn our attention to the classical marketing problems of product/service launch and development, by examining the emergence of the so-called ‘ruin bars’ in Budapest between 1999 and 2009. Traditionally the marketing discipline has been content with adopting the abstract...
Persistent link: https://www.econbiz.de/10009429755