Comparing automated text classification methods

Online social media drive the growth of unstructured text data. Many marketing applications require structuring this data at scales non-accessible to human coding, e.g., to detect communication shifts in sentiment or other researcher-defined content categories. Several methods have been proposed to automatically classify unstructured text. This paper compares the performance of ten such approaches (five lexicon-based, five machine learning algorithms) across 41 social media datasets covering major social media platforms, various sample sizes, and languages. So far, marketing research relies predominantly on support vector machines (SVM) and Linguistic Inquiry and Word Count (LIWC). Across all tasks we study, either random forest (RF) or naive Bayes (NB) performs best in terms of correctly uncovering human intuition. In particular, RF exhibits consistently high performance for three-class sentiment, NB for small samples sizes. SVM never outperform the remaining methods. All lexicon-based approaches, LIWC in particular, perform poorly compared with machine learning. In some applications, accuracies only slightly exceed chance. Since additional considerations of text classification choice are also in favor of NB and RF, our results suggest that marketing research can benefit from considering these alternatives.     

Information systems and technology sourcing strategies of e-Retailers for value chain enablement

In the e-Retail industry, a well-designed IT infrastructure is essential in creating a tightly integrated value chain and delivering high quality service. With intense competition for market share and profits, information systems and technology (IST) sourcing decisions are becoming increasingly important to e-Retail firms to support continued growth and market responsiveness. Drawing on the contingency theory, we examine organizational and environmental factors that influence an e-Retailer's IST sourcing strategy of make versus buy in enabling its value chain activities, and we also look at firm-level performance impacts of IST sourcing decisions that involve bundling across value chain activities. We test the proposed model and hypotheses using a panel data set of 307 firms over the period of 2006–2010. The results show that firms that make transformative IT investments tend to source a smaller portion of IST for their e-Retail value chain activities than firms that pursue automate or informate as their strategic role for IT investment. Capabilities are positively associated with IST sourcing. Firms experienced in e-Retail are more likely to build rather than buy their IST. In addition, we find mimicking behavior for IST sourcing among firms in the same merchandizer category. We find that IT strategic role is strongly associated with growth metric, whereas sourcing decisions predominantly impact operational performance measures. There is partial evidence that alignment between IT strategic role and IST sourcing decisions results in better performance effects. Moreover, complementary IST sourcing of synergistic marketing and sales activities positively impacts Web sales and conversion rate, but the sourcing combination of logistics, operations, and sales activities is associated with lower Web sales and conversion rate.     

Application of Relationship Investment Model in Predicting Student Engagement towards HEIs

Using the Relationship Investment Model, this study examines the effects of satisfaction, relationship investment dimensions, and alternative attractiveness on student commitment and, consequently, on student engagement towards higher education institutions (HEIs). This research adopts the positivism, quantitative, and deductive approaches. Data were gathered from a sample of 250 students through the street-intercept systematic sampling and were analyzed using structural equation modelling. The findings reveal that satisfaction and student direct investment significantly affect student commitment, which in turn influences student engagement towards HEIs. While the findings provide guidance to HEIs in designing an effective engagement program that will ensure their relevance in the competitive educational world, this research is limited by several factors, which will require refinement and replication in future research.     

Perspectives on the Development of Low-cost Airlines in South-east Asia

Low-cost airlines are seen by some as one of the best things that have happened within contemporary travel. The clever business idea of offering significantly lower prices by taking out all the extras in a short-haul flight, along with innovative cost-cutting measures, was successful in the USA as early as 1973 when South-west Airlines flew her first low-cost flight. This paper asks whether this scenario has potential in Southeast Asia. According to many analysts, the environment in South-east Asia is simply not suitable for budget carriers. Governments are still very protective of their flag-carriers, there is a lack of cheap, secondary airports, South-east Asians are not wealthy enough to fly, and other cost-cutting measures like Internet distribution cannot easily be replicated. This paper argues that the opposite is true. There might not be 'open-skies' in South-east Asia, but the governments appear willing to nurture low-cost airlines to coexist with their flag-carriers. The number of airports that could serve as gateways for these airlines is more numerous than expected. The South-east Asian population is getting wealthy enough to fly and there also exists a significant market if the low-cost carriers can take advantage of it.     

The interrelationship between management control mechanisms and strategy

This paper examines the interrelationship between management control system (MCS) mechanisms and strategy. The traditional view is that the MCS is shaped by organisational strategy. More contemporary viewpoints, however, suggest that there may be a two-way relationship between the two variables. That is, MCS shapes, and is shaped by, strategy.We develop two research questions that describe the interrelationship between MCS and strategy, and test them using a public sector entity that experienced a strategic change. A retrospective longitudinal study, spanning five years and involving archival data, interviews and a questionnaire, was adopted. The analysis confirms the existence of a two-way relationship between MCS and strategy. We find that the interactive use of MCS mechanisms helps to facilitate a change in strategy, and that MCS mechanisms change to match a change in strategy.     

Factors influencing adoption of genetically modified crops in Africa

The debate around genetically modified (GM) crops in Africa continues to grow especially among policy-makers, food manufacturers, farmer organisation and consumer advocacy groups and the general public. While other regions have taken a firm position on biotech crops, Africa remains largely ambivalent, with wide variation in GM policy across countries. The central objective of this paper is to analyse the factors that influence the adoption of GM crops in Africa. First we evaluate the current status of GM crop adoption in Africa. Second we identify the key enablers and hindrances to adoption of GM crops. The main factors include ministerial control of biosafety, peer country influence, stage of seed sector development, advocacy by key political figures, the media, activism, food security and technical capacity. We posit that, for most African countries, GM policy is guided by political rather than technological considerations with media and special interest groups playing a key role. Despite the numerous impediments, slow progress is being made in preparing the requisite enabling environment for biotechnology adoption in Africa.     

Capturing the Degree of Modularity Embedded in Product Architectures*

This article focuses on integrating various perspectives on product architecture modularity into a general framework and proposes a way to measure the degree of modularization embedded in product architectures. The article addresses trade‐offs between modular and integral product architectures and how components and interfaces influence the degree of modularization. The article identifies the following key elements of product architecture modularity: components (standard and new‐to‐the‐firm), interfaces (standardization and specification), degree of coupling, and substitutability. A mathematical model, termed the modularization function, is applied to measure the key elements and their combined effect on the degree of modularization embedded in product architectures. The application of the modularization function is illustrated by two distinct sets of product architectures: Chrysler Jeep's windshield wipers controllers and Schindler's hydraulic and traction‐pull transmission elevators. The analysis of the Chrysler case shows that the silent‐relay architecture produces more opportunities for modularization than the solid‐state architecture due to the higher substitutability factor and lower new‐to‐the‐firm component composition. The Schindler case captures the dynamics of modularity created by three types of components (standard, customizable, and new to the firm) and two types of interfaces (fundamental and optional). Based on the case studies, the article outlines testable propositions and discusses the managerial and theoretical implications for the modularization function.     

Consumer decision making process in shopping for halal food in Malaysia

This paper reports on the results obtained from quantitative and qualitative data on consumer decision making process in shopping for halal food. A total of 213 questionnaires were returned by respondents, confirming that our respondents who are concerning about the ＂halal＂ logo are also concerning about the ingredients used. The study also confirms that there is a significant relationship between respondents＇religion and their perceptions towards halal logo and ingredients. While the qualitative data from a focus group interview on how Muslim consumers shop for halal food shows that there is a need for assurance that food to be purchased is halal, implying the presence of risk and uncertainty when making purchase considerations. Using the audit risk framework in conventional assurance services, the study finds that assurance is sought in relation to the halalness of business premise, halalness of product, and assurance from environmental elements such as the halal logo displayed.