Thales Batiston Marques; Nelson Seixas dos Santos
Volume 3, Issue 10 , October 2016, , Pages 545-571
Abstract
This paper investigates the relation between political news and market returns. To do so we applied a Garch filter to a sample of the main Brazilian stock market index returns (Ibovespa Index) and of short-term interest rates (Selic Over and DI) which ranged from 01/02/2014 to 04/29/2016. Then we looked ...
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This paper investigates the relation between political news and market returns. To do so we applied a Garch filter to a sample of the main Brazilian stock market index returns (Ibovespa Index) and of short-term interest rates (Selic Over and DI) which ranged from 01/02/2014 to 04/29/2016. Then we looked for periods of abnormal volatility which might be associated with political events using a parametric and a nonparametric method. Notwithstanding there were news like important politician been arrested and even speculation about the beginning of an impeachment process, we found relation between abnormal volatilities and political news only in Ibovespa returns during Presidential Elections.
Hossein Rahmanseresht; Omar Mahmoudi; Bakhtiar Ghaderi
Volume 3, Issue 4 , April 2016, , Pages 246-260
Abstract
The aim of this study was to determine the relationship between information technology and organizational structure in governmental banks of Iran. This study was a correlative survey. Data were collected using two questionnaires. The standard questionnaire of information technology belonged to Zegardy ...
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The aim of this study was to determine the relationship between information technology and organizational structure in governmental banks of Iran. This study was a correlative survey. Data were collected using two questionnaires. The standard questionnaire of information technology belonged to Zegardy and Ismaili (2007) and the standard organizational structure questionnaire belonged to Robbins were used. Reliability of the questionnaires using Cronbach's alpha method was questionnaire of the information technology was 0.866 and for the organizational structure questionnaire was 0.725. The ideas of a group of experts were looked for in order to determine the validity of the questionnaire. A sample size of 50 subjects was selected in Marivan city's governmental banks. Data were analyzed using SPSS17 and LISREL8.50 softwares. Pearson correlation and linear regression test were used to analyze the data. Results showed that there was a positive and direct correlation between using information technology and organizational structure in governmental banks. In other words, as the using of information technology increases, organizational formality, complexity, and centralization improve.
Angel Wong An Kee; Rashad Yazdanifard
Volume 2, Issue 9 , September 2015, , Pages 1055-1064
Abstract
Content marketing evolves to be a powerful marketing tactic in the digital, fast moving, information driven world. It is not a new strategy but more and more enterprises begin to engage in content marketing gradually. So what are the reasons of the rise of content marketing in today’s society? ...
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Content marketing evolves to be a powerful marketing tactic in the digital, fast moving, information driven world. It is not a new strategy but more and more enterprises begin to engage in content marketing gradually. So what are the reasons of the rise of content marketing in today’s society? This paper discusses about the use of content marketing in businesses and how it brings benefits to the companies. The conclusion summarizes six strategies companies use during the implementation of content marketing in their businesses.
Seyyed Hossein Alavi; Mahdi Pouriani
Volume 1, Issue 2 , September 2014, , Pages 126-133
Abstract
Since supplier selection is an important part in management fields, this research focuses on weighted non-hierarchical fuzzy model to increase supply chain management performance. Supplier selection researches have significantly increased but most of methods have been focused on hierarchical determination ...
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Since supplier selection is an important part in management fields, this research focuses on weighted non-hierarchical fuzzy model to increase supply chain management performance. Supplier selection researches have significantly increased but most of methods have been focused on hierarchical determination of indices. This article by use of a multiple objective function tried to present a method that can consider non-hierarchical determination of indices in specific conditions. This research by use of deliverable indices of supply chain management tries to select the best suppliers. In this paper it is assumed that all suppliers have the ability to supply needed items but client can only make a product they provide. Quality of supply chain deliverable, supply chain reliability and supply chain visibility names indices have been selected to increase efficiency in the supply chain. This approach presents local optimal solutions by use of a heuristic logic in supply chain management. These indices are used as fuzzy to select the appropriate suppliers. By this fuzzy method, appropriate supplier can be set for each of the items. The presented approach have been introduced a weighted indices to determine best supplier in specific conditions. In this research weighted non-hierarchical fuzzy sets have been used to select appropriate suppliers. This method is useful for supplier selection problems.