Pub Date : 2015-12-01DOI: 10.6186/IJIMS.2015.26.4.5
Wen-Yau Liang, Chun-Che Huang
Product bundling is a widespread practice in the current e-commerce environment. How- ever, there are few investigations about bundled commodities mining. Because no efficient method of product bundling is currently available, an expert selection of appropriate product bundling is a complex process. This is time-consuming and cannot efficiently meet the enterprise’s need. It is essential for a company to develop product bundling based on analyzing the related information that fits different requirements and maximizes the benefit. This study proposes a method of incorporating GA and rough set theory. The superiority of the proposed GA is its ability to model problems and explore solutions generically. The proposed method improves GA performance by reducing the domain range of the initial population and constrained crossover using rough set theory. The experimental results in this study confirm that this approach is highly effective and very promising.
{"title":"Product Bundling in the Electronic Commerce Environment: A Hybrid Approach","authors":"Wen-Yau Liang, Chun-Che Huang","doi":"10.6186/IJIMS.2015.26.4.5","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.4.5","url":null,"abstract":"Product bundling is a widespread practice in the current e-commerce environment. How- ever, there are few investigations about bundled commodities mining. Because no efficient method of product bundling is currently available, an expert selection of appropriate product bundling is a complex process. This is time-consuming and cannot efficiently meet the enterprise’s need. It is essential for a company to develop product bundling based on analyzing the related information that fits different requirements and maximizes the benefit. This study proposes a method of incorporating GA and rough set theory. The superiority of the proposed GA is its ability to model problems and explore solutions generically. The proposed method improves GA performance by reducing the domain range of the initial population and constrained crossover using rough set theory. The experimental results in this study confirm that this approach is highly effective and very promising.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"28 1","pages":"393-410"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83070176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.6186/IJIMS.2015.26.4.2
Chih-Chen Hsu, C. E. Wang, Chih-Yueh Huang
This paper develops a bivariate asymmetric non-linear smooth-transition Generalized Autoregressive Conditional Heteroskedasticity (GARCH) (BANST-GARCH) model to hedge the risk in the shipping freight rate market. Our dataset consists of 1,768 daily spot and forward freight agreement (FFA) prices of two tanker routesTD3 and TD5with the latter showing an asymmetric pattern. The empirical results of hedging effectiveness strongly support the concept that the BANST-GARCH model outperforms other models in both in- sample and out-of-sample periods with the largest variance reduction. Thus, our model is able to capture the asymmetric pattern in the tanker freight market. This study contributes to the literature by providing a new overview of the interaction between tanker spot and FFA markets, discovering the asymmetric effect of shocks in the shipping market, developing an advanced econometric model to capture the asymmetrical effect, and constructing a better hedge strategy on the basis of our BANST-GARCH model.
{"title":"Hedging in an Asymmetrical Freight Market","authors":"Chih-Chen Hsu, C. E. Wang, Chih-Yueh Huang","doi":"10.6186/IJIMS.2015.26.4.2","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.4.2","url":null,"abstract":"This paper develops a bivariate asymmetric non-linear smooth-transition Generalized Autoregressive Conditional Heteroskedasticity (GARCH) (BANST-GARCH) model to hedge the risk in the shipping freight rate market. Our dataset consists of 1,768 daily spot and forward freight agreement (FFA) prices of two tanker routesTD3 and TD5with the latter showing an asymmetric pattern. The empirical results of hedging effectiveness strongly support the concept that the BANST-GARCH model outperforms other models in both in- sample and out-of-sample periods with the largest variance reduction. Thus, our model is able to capture the asymmetric pattern in the tanker freight market. This study contributes to the literature by providing a new overview of the interaction between tanker spot and FFA markets, discovering the asymmetric effect of shocks in the shipping market, developing an advanced econometric model to capture the asymmetrical effect, and constructing a better hedge strategy on the basis of our BANST-GARCH model.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"5 1","pages":"341-359"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88136017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.6186/IJIMS.2015.26.4.4
Kuo-Chen Hung, C. Chu, Shu-Cheng Lin
We study the analytical traffic model to provide a better approximated solution for headway. Our work is an extension of two published papers for fixed-route bus with not all stops being made and random arrival waiting time. The purpose of this paper is threefold. First, we provide a new formulated approximation for headway. Second, numerical examples are used to point out that our new formulated approximation is more accurate than two published papers. Third, we show that the optimum headway is not a decreasing function of the average extra time required to decelerate and accelerate for a patron stop. Hence, a previous theorem needs a modification, and then we derive an improvement. The same numerical examples from two published papers are examined to support our findings.
{"title":"Improved Solution Approach for Bus Model with Stops Generalization","authors":"Kuo-Chen Hung, C. Chu, Shu-Cheng Lin","doi":"10.6186/IJIMS.2015.26.4.4","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.4.4","url":null,"abstract":"We study the analytical traffic model to provide a better approximated solution for headway. Our work is an extension of two published papers for fixed-route bus with not all stops being made and random arrival waiting time. The purpose of this paper is threefold. First, we provide a new formulated approximation for headway. Second, numerical examples are used to point out that our new formulated approximation is more accurate than two published papers. Third, we show that the optimum headway is not a decreasing function of the average extra time required to decelerate and accelerate for a patron stop. Hence, a previous theorem needs a modification, and then we derive an improvement. The same numerical examples from two published papers are examined to support our findings.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"28 1","pages":"379-391"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80522295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.6186/IJIMS.2015.26.4.6
Kiruthika, M. Dilsha
Credit analysts generally assess the risk of credit applications based on their previous experience. They frequently employ quantitative methods to this end. Most of the financial and banking institutions are using logistic regression to build a credit scorecard. Among the new method, Support Vector Machines (SVM) has been applied in various studies of scorecard modelling. SVM classification is currently an active research area and successfully solves classification problems in many domains. This paper uses standard logistic regression models and compares them with the more advanced least squares support vector machine models with linear and radial basis function kernels. A microfinance data set is used to test the model performance.
{"title":"A Comparitive Study of Support Vector Machine and Logistic Regression in Credit Scorecard Model","authors":"Kiruthika, M. Dilsha","doi":"10.6186/IJIMS.2015.26.4.6","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.4.6","url":null,"abstract":"Credit analysts generally assess the risk of credit applications based on their previous experience. They frequently employ quantitative methods to this end. Most of the financial and banking institutions are using logistic regression to build a credit scorecard. Among the new method, Support Vector Machines (SVM) has been applied in various studies of scorecard modelling. SVM classification is currently an active research area and successfully solves classification problems in many domains. This paper uses standard logistic regression models and compares them with the more advanced least squares support vector machine models with linear and radial basis function kernels. A microfinance data set is used to test the model performance.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"43 1","pages":"411-422"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84055001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.6186/IJIMS.2015.26.4.3
Bao-Guang Chang, Tai-Hsin Huang, Hsiu-Mei Wang
This paper investigates the effect of a China’s government policy, which forces a public accounting firm to enhance its production scale, technical efficiency and economies of scale. We apply and estimate a standard input distance frontier using data on the top 100 Chinese accounting firms covering 2008-2009. We find that the larger the firm size is, the more technically efficient it is, thus justifying policy enforcement. Furthermore, economies of scale prevail in the top 100 accounting firms and are not exhausted, supporting that these firms keep extending their production scale to reduce their long-run average costs. Empirical results reveal that larger accounting firms have more competitive advantage.
{"title":"An Evaluation of Technical Efficiencies for the Top 100 Public Accounting Firms in China","authors":"Bao-Guang Chang, Tai-Hsin Huang, Hsiu-Mei Wang","doi":"10.6186/IJIMS.2015.26.4.3","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.4.3","url":null,"abstract":"This paper investigates the effect of a China’s government policy, which forces a public accounting firm to enhance its production scale, technical efficiency and economies of scale. We apply and estimate a standard input distance frontier using data on the top 100 Chinese accounting firms covering 2008-2009. We find that the larger the firm size is, the more technically efficient it is, thus justifying policy enforcement. Furthermore, economies of scale prevail in the top 100 accounting firms and are not exhausted, supporting that these firms keep extending their production scale to reduce their long-run average costs. Empirical results reveal that larger accounting firms have more competitive advantage.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"56 1","pages":"361-378"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80252519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.6186/IJIMS.2015.26.4.1
Yi-Kuei Lin, Sheng-Chiang Chen, K-J Hsueh
Every restaurant strives to maintain the quality of its service while simultaneously attracting new customers. Thus, restaurant managers face the dual challenges of adhering to time constraints and fulfilling customer demands. To investigate this issue in the present study, cooking was regarded as a project and was analyzed using a work breakdown structure. Since many real-world projects can be described by network models using arcs and nodes, we also evaluated restaurant performance by analyzing its project network. In general, a project network mainly consists of activities, and in this case, the capacity of each cooking appliance and the duration of each activity involved in the cooking process were also accounted for in the calculations. The main purpose of this study was to evaluate the project reliability, the probability that a restaurant can produce a demanded number of meals within a certain time. A restaurant multistate project network (RMPN) was constructed based on information provided by a restaurant about the cooking process. We then measured the time spent on each activity to generate the duration distribution. An algorithm was subsequently developed to assess the project reliability of the RMPN. This algorithm can be used by restaurant managers to assess the service qualities of their restaurants.
{"title":"Project reliability evaluation of a restaurant under time constraints and customer demands","authors":"Yi-Kuei Lin, Sheng-Chiang Chen, K-J Hsueh","doi":"10.6186/IJIMS.2015.26.4.1","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.4.1","url":null,"abstract":"Every restaurant strives to maintain the quality of its service while simultaneously attracting new customers. Thus, restaurant managers face the dual challenges of adhering to time constraints and fulfilling customer demands. To investigate this issue in the present study, cooking was regarded as a project and was analyzed using a work breakdown structure. Since many real-world projects can be described by network models using arcs and nodes, we also evaluated restaurant performance by analyzing its project network. In general, a project network mainly consists of activities, and in this case, the capacity of each cooking appliance and the duration of each activity involved in the cooking process were also accounted for in the calculations. The main purpose of this study was to evaluate the project reliability, the probability that a restaurant can produce a demanded number of meals within a certain time. A restaurant multistate project network (RMPN) was constructed based on information provided by a restaurant about the cooking process. We then measured the time spent on each activity to generate the duration distribution. An algorithm was subsequently developed to assess the project reliability of the RMPN. This algorithm can be used by restaurant managers to assess the service qualities of their restaurants.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"29 1","pages":"323-340"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82679471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-09-01DOI: 10.6186/IJIMS.2015.26.3.1
Yu-Chung Tsao, Thuy-Linh Vu
Advance payment has gained widespread use by businesses as a proactive measure to protect against unforeseen events. This paper designs a supply chain network for deteriorating items under advance payment and partial backordering, as well as for a situation in which shortages are not a factor. In each case, the solution to the mathematical model is presented for minimizing the total network cost. The models are illustrated with numerical examples, and sensitivity analysis is performed by varying the involved parameters. The computational results indicate that the greater the number of equal-sized parts by which we divide the prepayment period, the less the total network cost is.
{"title":"Supply Chain Networks Design for Deteriorating Items under Advance Payment and Backordering","authors":"Yu-Chung Tsao, Thuy-Linh Vu","doi":"10.6186/IJIMS.2015.26.3.1","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.3.1","url":null,"abstract":"Advance payment has gained widespread use by businesses as a proactive measure to protect against unforeseen events. This paper designs a supply chain network for deteriorating items under advance payment and partial backordering, as well as for a situation in which shortages are not a factor. In each case, the solution to the mathematical model is presented for minimizing the total network cost. The models are illustrated with numerical examples, and sensitivity analysis is performed by varying the involved parameters. The computational results indicate that the greater the number of equal-sized parts by which we divide the prepayment period, the less the total network cost is.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"72 1","pages":"201-217"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86953361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-09-01DOI: 10.6186/IJIMS.2015.26.3.7
Qiaoqiao Gao, Dequan Yue
In this paper, the optimal inspection and preventive maintenance policy are investigated for a system with two types of failures, one type of failure is repairable, and the other is unrepairable. When the working time of the system reaches time T, the system will be detected, if a repairable failure is found then a failure repair will be carried out, and if an unrepairable failure is found then the system will be replaced. Otherwise, a preventive repair will be carried out. The system will be replaced by a new and identical one at the time following the Nth repairable failure. We look for a bivariate optimal policy which makes the long-run expected profit per unit time maximization. The long-run average profit per unit time is obtained explicitly. Finally, we compute numerically a bivariate approximate optimal policy.
{"title":"The Preventive Maintenance and Inspection Policy for the System with Two Types of Failures","authors":"Qiaoqiao Gao, Dequan Yue","doi":"10.6186/IJIMS.2015.26.3.7","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.3.7","url":null,"abstract":"In this paper, the optimal inspection and preventive maintenance policy are investigated for a system with two types of failures, one type of failure is repairable, and the other is unrepairable. When the working time of the system reaches time T, the system will be detected, if a repairable failure is found then a failure repair will be carried out, and if an unrepairable failure is found then the system will be replaced. Otherwise, a preventive repair will be carried out. The system will be replaced by a new and identical one at the time following the Nth repairable failure. We look for a bivariate optimal policy which makes the long-run expected profit per unit time maximization. The long-run average profit per unit time is obtained explicitly. Finally, we compute numerically a bivariate approximate optimal policy.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"23 1","pages":"307-322"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91069171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-09-01DOI: 10.6186/IJIMS.2015.26.3.5
Ming-Guang Huang
Advanced booking and reservation policies involving perishable items have been extensively applied in striving to deal with volatile demand in a highly competitive marketplace. Furthermore, retailers of perishable items generally allow customers with a reservation to arbitrarily cancel their advanced bookings in order to encourage sales. Under this circumstance, retailers have difficulty in making precise order quantity decisions, especially for the higher rate and volatility involved in reservation cancellations. Accordingly, this study extends the newsvendor model to allow for advanced booking system with stochastic reservation cancellations. A transformation model for the cancellation rate variable is also developed here to conform to lognormal distribution, which is considered as more realistic and accurate for cancellations behavior. Additionally, an effective and practical ordering model for retailers is eventually developed to optimally determine the order quantity of a given perishable item during an upcoming selling period in an advanced booking system with stochastic reservation cancellations. Numerical example demonstrates that the proposed optimal ordering model in this study can find an optimal solution to maximize the expected profits of retailers. Moreover, some valuable findings for managerial reference are revealed through conducting sensitivity analysis.
{"title":"Optimal Ordering Policy for Perishable Items in an Advanced Booking System with Stochastic Reservation Cancellations","authors":"Ming-Guang Huang","doi":"10.6186/IJIMS.2015.26.3.5","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.3.5","url":null,"abstract":"Advanced booking and reservation policies involving perishable items have been extensively applied in striving to deal with volatile demand in a highly competitive marketplace. Furthermore, retailers of perishable items generally allow customers with a reservation to arbitrarily cancel their advanced bookings in order to encourage sales. Under this circumstance, retailers have difficulty in making precise order quantity decisions, especially for the higher rate and volatility involved in reservation cancellations. Accordingly, this study extends the newsvendor model to allow for advanced booking system with stochastic reservation cancellations. A transformation model for the cancellation rate variable is also developed here to conform to lognormal distribution, which is considered as more realistic and accurate for cancellations behavior. Additionally, an effective and practical ordering model for retailers is eventually developed to optimally determine the order quantity of a given perishable item during an upcoming selling period in an advanced booking system with stochastic reservation cancellations. Numerical example demonstrates that the proposed optimal ordering model in this study can find an optimal solution to maximize the expected profits of retailers. Moreover, some valuable findings for managerial reference are revealed through conducting sensitivity analysis.","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"7 1","pages":"271-290"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87104554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-09-01DOI: 10.6186/IJIMS.2015.26.3.2
Alan T. Wang, I. Jiang, Horng-Jinh Chang, J. Cheng
The recent episodes of sanctions on Russia by international communities and the quantitative easing by Japanese and European central banks highlight the importance of foreign exchange risk for international investors. This paper examines how and to what extent the volatility of exchange rate affect the volatility of local equity market for Latin American countries and transition economies. Compared to Mun [15], we find that the proportions of volatility of local equity market attributable to exchange rate fluctuations for Latin American countries and transition economies are much larger than those for more developed economies. Besides, an increase in exchange rate volatility is associated with an increase in the correlation between the local and the US equity markets for Latin American countries but with a decrease in the correlation for transition economies, both to a larger extend than developed countries. In particular, our study indicates that the sign of the conditional correlation coefficient between exchange rate and local equity market varies across countries and time, inconsistent with the prediction by the so called ＂equity parity condition＂ in Hau and Rey [8].
{"title":"The Role of Exchange Rate Fluctuations in the Volatility and Correlations in Emerging Markets","authors":"Alan T. Wang, I. Jiang, Horng-Jinh Chang, J. Cheng","doi":"10.6186/IJIMS.2015.26.3.2","DOIUrl":"https://doi.org/10.6186/IJIMS.2015.26.3.2","url":null,"abstract":"The recent episodes of sanctions on Russia by international communities and the quantitative easing by Japanese and European central banks highlight the importance of foreign exchange risk for international investors. This paper examines how and to what extent the volatility of exchange rate affect the volatility of local equity market for Latin American countries and transition economies. Compared to Mun [15], we find that the proportions of volatility of local equity market attributable to exchange rate fluctuations for Latin American countries and transition economies are much larger than those for more developed economies. Besides, an increase in exchange rate volatility is associated with an increase in the correlation between the local and the US equity markets for Latin American countries but with a decrease in the correlation for transition economies, both to a larger extend than developed countries. In particular, our study indicates that the sign of the conditional correlation coefficient between exchange rate and local equity market varies across countries and time, inconsistent with the prediction by the so called ＂equity parity condition＂ in Hau and Rey [8].","PeriodicalId":39953,"journal":{"name":"International Journal of Information and Management Sciences","volume":"4 1","pages":"219-238"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78951426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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