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This study explores the factors contributing to online users' network centrality in a network on Twitter in the context of a social movement about the “clear the shelters” campaign across the United States. The authors performed a social network analysis on a network including 13,270 Twitter users and 24,354 relationships to reveal users' betweenness, closeness, eigenvector, in-degree, and out-degree centralities before hypothesis testing...

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Ahmed, A., & Akar, E. (2022). An empirical examination of technology and security services in sharing economy. AMCIS 2022 Proceedings.7

Sharing economy platforms such as Airbnb, Uber, and Lyft have become increasingly popular. However, over the years, these markets have become highly concentrated. On Airbnb, homeowners and property management companies have started offering rental services and saturating the short-term rental market space. In this research, we study whether offering technology- and security-based services brings a competitive advantage to property and increases its bookings...

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Akar, E., Hakyemez, T.C., Bozanta, A., & Akar, S. (2022). What sells on fake news market?: examining the impact of contextualized rhetorical features on popularity of fake tweets. Online Journal of Communication and Media Technologies, 12(1), e202201. doi: 10.30935/ojcmt/11278.

A fake news ecosystem is akin to a marketplace where content generators and users exchange
content like sellers and buyers. The popularity of a product in this marketplace is influenced by
rhetorical features, topic categories, and design motivations...

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Akar, E (2021). Customers' online purchase intentions and customer segmentation during the period of COVID-19 pandemic. Journal of Internet Commerce, 20(3), 371-401. doi:10.1080/15332861.2021.1927435.
[Read Accepted Manuscript]

This study, based on a survey of 520 online customers in Turkey, aimed to investigate pandemic-related concerns on customers' purchase intentions. We analyzed its role in customer segmentation. We extended the theory of planned behavior by introducing the impact of customers’ pandemic concerns. 

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Akar, S., & Akar, E. (2019) Is it a new tulip mania age? A comprehensive literature review beyond cryptocurrencies, bitcoin, and blockchain technology. Journal of Information Technology Research, 13(1), 44-67. doi: 10.4018/JITR.2020010104.

Although cryptocurrencies and blockchain technology can be considered new advances, they have
started to be recognized widely, and this has been discussed and investigated in lots of research
studies. In parallel, the primary purpose of this study is to investigate the development and evolution
of cryptocurrencies and blockchain technology over the past years in the academic world. To this
end, 334 scholarly journal articles are examined...

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Akar, E., Mardikyan, S. & Dalgic, T. (2019). User roles in online communities and their moderating effect on online community usage intention: An integrated approach. International Journal of Human-Computer Interaction, 35(6), 495-509.  doi: 10.1080/10447318.2018.1465325.

This article addresses the problem of the different user types existing in online communities, and each of them requires different strategies to be motivated and involved in the community. Thus, unlike previous studies, this study first identifies user roles in an online community based on the structural role theory, social network analysis, and community members’ contribution behavior...

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Akar, E., & Dalgic, T. (2018). Understanding online consumers’ purchase intentions: A contribution from Social Network Theory. Behaviour & Information Technology, 37(5), 473-487. doi: 10.1080/0144929X.2018.1456563.

We integrate the social network theory and the theory of planned behavior to analyze online consumers’ purchase intentions and investigate their structural positions by analyzing their friendships in social networks. We target Twitter users to conduct analysis due to Twitter's popularity in use, market penetration, and opportunity to work with open-source data...

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Akar, E., & Mardikyan, S. (2018). User roles and contribution patterns in online communities: A managerial perspective. SAGE Open, July-September 2018, 1-19. doi: 10.1177/2158244018794773.

This study focuses on the problem of the existence of different user types in online communities and the development of different strategies for their motivation, involvement, and communication. Unlike previous
studies, this study considers theories across managerial and social domains, conducts social network analysis, and considers users’ contribution patterns in an online community to identify particular user types in an online community...

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Unal, S., Dalgic, T., & Akar, E. (2018). How avatars help enhancing self-Image congruence. International Journal of Internet Marketing and Advertising, 12(4), 374-395. doi: 10.1504/IJIMA.2018.095400.

This study focuses on consumers and their avatars using behaviors across self-image congruence theory by examining the congruence among avatars, participants’ personality traits, and product-related self-image. This
the study analyses the responses of 403 individuals collected by an online questionnaire...

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Akar, E., & Mardikyan, S. (2016). Factors affecting the adoption of cloud computing: A case of Turkey. KSII Transactions on Internet and Information Systems, 10(1), 18-37. doi: 10.3837/tiis.2016.01.002.

The aims of the study are to analyze factors affecting the adoption of cloud computing and apply structural equation modeling techniques to analyze the important
dimensions of the adoption. Concordantly, previous studies are examined and expert interviews are arranged. Based on both our literature review and expert interviews, a model is proposed to measure the adoption of cloud computing

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Unal, S. Dalgic, T., & Akar, E. (2018). Avatars as the virtual world's personality. In Virtual Worlds and Marketing (pp. 33-53). Lady Stephenson Library, Newcastle upon Tyne, NE6 2PA, UK: Cambridge Scholar Publishing.

Nowadays, many people communicate with each other
simultaneously within virtual worlds to do business, socialize or have fun...

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Ozturan, M., Basarir-Ozel, B., & Akar, E. (2015). A review on methods for the assessment of information system projects. Journal of Information Technology and Applications, 5(2), 117-128. doi:  10.7251/JIT1502117O.

Both empirical and conceptual studies are reviewed to identify the relevant IS/IT investment methods. After an extensive literature review, 51 relevant articles are identifi ed. The IS/IT investment methods studied in these articles are classifi ed and examined within the three categories: fi nancial, non-fi nancial, and hybrid...

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Akar, E., & Nasir, V.A. (2015). A review of literature on consumers' online purchase intentions. Journal of Customer Behaviour, 14(3), 215-233. doi: 10.1362/147539215X14441363630837.

The main goal of this paper is to depict the factors that have an impact on consumers' online purchase intentions through an in-depth analysis of the relevant literature...

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Özturan, M., Bozanta, A., Basarir-Ozel, B., Akar, E., & Çoşkun, M. (2015). A roadmap for an integrated university information system based on connectivity issues: Case of Turkey. The International Journal of Management Science and Information Technology, Jul-Sep 2015(17), 1-22. 

In this study, it is aimed to propose a roadmap for an IUIS based on strategic, logical, physical, and organizational
connectivity issues to fulfil this need. For this purpose, firstly literature survey has been done on connectivity issues and best practices of IUISs...

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Akar, E., & Mardikyan S. (2014). Factors affecting users’ behavior intention to use social media: Twitter case. International Journal of Business and Social Science, 5 (11-1), 85-95. 

Advancement of technology and the Internet proliferation have visible effects in the world. One of the most important effects is the increased social media usage among the Internet users. For this purpose, factors having impacts on users’ behavior intention to social media usage are investigated within the scope of the study...

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