Sung-Byung Yang

Kyung Hee University · Scool of Management

An initial coin offering (ICO) seeks to raise initial investments for companies by selling crypto tokens to individuals interested in crowdfunding. As ICOs have gained popularity, a lack of information regarding startup companies' prior financial status and business health has led to information asymmetry between potential investors and ICO project...

The advent of social media has transformed the stock investment landscape considerably. Individual investors are increasingly shifting from traditional financial institutions to platforms such as Facebook, X, and stock discussion forums to obtain information and exchange opinions, significantly affecting the stock market. Post-COVID-19, the influx...

This study investigated the factors influencing the continuance intention of live streaming shopping (LSS) viewers. Based on affordance theory, a structural equation model examined the influence of shopping affordance and engagement on LSS viewers. This study also explored the viewers’ behavior during and after COVID-19 through multi-group analysis...

Individual investors often struggle to predict stock prices due to the limitations imposed by the computational capacities of personal laptop Graphics Processing Units (GPUs) when running intensive deep learning models. This study proposes solving these GPU constraints by integrating deep learning models with technical analysis methods. This integr...

Individual investors often struggle to predict stock prices due to the limitations imposed by the computational capacities of personal laptop Graphics Processing Units (GPUs) when running intensive deep learning models. This study proposes solving these GPU constraints by integrating deep learning models with technical analysis methods. This integr...

This study discusses the effects of spatial and social distances between U.S. domestic travelers on online review assessment. Previous studies on online review assessment have augmented the understanding of quantitative measures of review usefulness; however, researchers have seldom observed dyadic perspectives from one another and their close vers...

Digitization, informatization, and internet penetration have led to a significant rise in cross-border e-commerce (CBEC), attracting considerable interest from academia, government, and industry. This study employed a novel method combining automatic text generation technology and traditional bibliometric analysis to summarize and categorize resear...

As the world continues to focus on carbon emissions, many policies have been proposed to achieve low-carbon economies. This has resulted in the innovative development of new-energy sources that may persuade microinvestors to alter their investment behaviors. With this in mind, this paper proposes a dynamic quantitative trading system to assist inve...

Purpose This study aims to apply the information system success model (ISSM) to examine the relationships among actual use, use continuance intention, user satisfaction and net benefits in the context of quick-service restaurant (QSR) patrons using two contactless technologies (CT): self-service kiosks (SSK) and mobile applications (MA) for food or...

This study provides an applicable methodological procedure applying Artificial Intelligence (AI)-based supervised Machine Learning (ML) algorithms in detecting fake reviews of online review platforms and identifies the best ML algorithm as well as the most critical fake review determinants for a given restaurant review dataset. Our empirical findin...

While some online reviews explicitly praise or criticize a product, others reveal a neutral evaluation. We predicted that extreme reviews would be considered more useful than moderate ones, and that negative reviews would be considered more useful than positive ones. To test these predictions, this study collected a dataset comprising 951,178 revie...

Online to offline (O2O) is an emerging type of e-commerce strategy that draws customers from online channels to complete purchases in offline stores. It is based on mobile services and interactions between users and merchants through information communications technology. O2O services are convenient to use as they are available anytime and anywhere...

Electric scooter (e-scooter) sharing services have redefined the concept of urban transportation and development for cities around the world. These services, however, have raised concerns regarding information privacy in the wake of allegations that they are used by corporations and even government bodies to collect information. We introduce a new...

Online to offline (O2O) is an emerging type of e-commerce strategy that draws customers from online channels to complete purchases in offline stores. It is based on mobile services and interactions between users and merchants through information communications technology. O2O services are convenient to use as they are available anytime and anywhere...

In spite of diverse measures by national governments and destination marketing organizations (DMOs), the statistics related to international tourist destinations, including those of independent travelers, show that the rankings of the most popular tourist destinations have undergone minimal changes over the past decade. The aim of this study is to...

User participation plays a critical role in the business success of shared mobility services. This study classifies user participation behavior into two different types (in- and extra-role participations), integrates the motivation–opportunity–ability (MOA) model and social exchange theory (SET) to identify key antecedents, and empirically examines...

Emerging technology and information search capabilities have the potential to enhance the efficiency of consumer recommendations for travellers. One critical factor that has been understudied in online reviews is that of the reader–poster dyadic relationship and its impact on review evaluations. This paper provides an understanding of reader–poster...

Thanks to artificial intelligence, chatbots have been applied to many consumer-facing applications, especially to online travel agencies (OTAs). This study aims to identify five quality dimensions of chatbot services and investigate their effect on user confirmation, which in turn leads to use continuance. In addition, the moderating role of techno...

Travel products such as package tours, Airtels, hotel rooms, and airline seats lose their value unless they are sold by a certain date. Therefore, predicting customer behavior allows travel companies to maximize their profits, minimize their loss of revenue by balancing supply and demand (e.g., determining an overbooking level), and wisely respond...

With the rapid development of the sharing economy, accommodation sharing is a growing trend across the global. Consumers’ feelings, opinions, praises, and even criticisms regarding accommodations can be easily posted and shared via review sharing platforms. Word of mouth (WOM) breaks through the oral communication between people, and further turns...

Recently, with the advance of the wireless Internet access via mobile devices, a myriad of game development companies have forayed into the mobile game market, leading to intense competition. To survive in this fierce competition, mobile game developers often try to get a grasp of the rapidly changing needs of their customers by operating their own...

Enterprises have implemented enterprise resource planning (ERP) systems as a strategic vehicle to gain a competitive edge. However, such ERP systems do not always guarantee successful results. While ERP systems may provide an organization with numerous benefits, they can also destroy a business if not successfully adopted, owing to enormous investm...

Although fake online reviews have been gaining more attention from both academics and practitioners, little effort has been made to explore the linguistic characteristics of the psychological processes related to fake reviews. This research proposes four linguistic cues (i.e., affective, cognitive, social, and perceptual) related to a reviewer’s ps...

In a new age of smart tourism, free independent travelers (FITs) choose their travel routes in a more diversified and less predictable way with the aid of smart services. This paper focuses on the movements of Chinese outbound FITs in the U.S. in the year of 2018. 110 places to visit (destinations) extracted from 122 travel routes recommendations o...

In online travel communities, ‘Top-K best places to visit’ recommendations are gaining more attention from travelers due to their ubiquitous access to the Internet, but little empirical effort has been made to investigate what factors lead to the popularity of user-curated ‘best places to visit (BP2V)’ recommendations. This research therefore aims...

As the role of online word of mouth becomes more important with the development of the Internet, information sharing and diffusion among customers are rapidly taking place. The impact of online reviews, a form of word of mouth, greatly applies to the hotel industry as hotel services are intangible and difficult to evaluate before experiencing, whic...

Previous research on the sharing economy has not typically focused on organizational structure and its management in spite of the fact that the essence of recent peer-to-peer business practices is the collaboration of online platforms and sharable assets owned by market peers. This paper critically examines a theoretical model to explore how these...

This research identifies two types of review patterns, authentic and fake, based on configurations among reviewers and review content elements. We also explain what fake review is with IMT as theoretic background. The results, which are based on the fsQCA method, identify the combinations of configurations for authentic and fake reviews. Each patte...

Bike sharing has become a central theme in discussions regarding the construction of smart transportation cities. Privately-run bike sharing companies, however, have had difficulty in expanding into overseas markets, which has led them to partner with the public sector. As little research has examined the role of partnerships between private and pu...

The sharing norm has enabled many of unused resources revamped and returned with some value to both travelers and local communities in the sharing economy. Airbnb requires remarkable trust that goes beyond the level where both user and host take risks from a sharing transaction. This paper suggests an empirical research model developed based on the...

Purpose The purpose of this paper is to answer the question of whether smartwatches will survive and gain their own niche within the consumer electronics market. Based on the stimulus–organism–response (S–O–R) framework, this study identifies and validates the impacts of both technological and fashion-related factors (interactivity, autonomy, visu...

Online reviews from consumers are critically important to the restaurant business. This study identified a heuristic processing of content richness and source credibility and applied both for utilitarian and hedonic evaluations. Furthermore, we analyzed the moderating effect of restaurant type (casual, luxury fine dining restaurant). A total of 262...

Sharing economy businesses require extensive trust-based communication between users and service providers to facilitate users’ positive persuasion processes. Based on Aristotle’s rhetorical theory, this study identifies three key persuasive cues (credibility, emotional bonding, and accommodation characteristics) and validates their roles in establ...

Crowdfunding is regarded as a novel way of collecting money for innovators to introduce products or services they ultimately wish to launch. The question arises, however, of what makes funding projects on these online platforms, with their different features of project evaluation and risk management, more successful than traditional fundraising app...

Online "best places to visit" recommendations in an independent travelers' community are gaining more and more popularity due to the various and differentiated individual needs. Therefore, this research aims to identify heuristic factors affecting the popularity of "best places to visit" recommendations. The heuristic factors are derived from both...

Recently, as interest in life satisfaction has increased, many people want to enjoy leisure activities for the satisfaction of their lives. In this context, a number of researchers have paid attention to the quality of life of tourists, and therefore, the positive relationship between tourism experience and the quality of life has been proved. Howe...

Landmarks play an important role in representing tourist destinations because they symbolize a destination’s image and personality. Despite the significance of landmarks to the perception of a destination’s image and personality, a personality scale based on landmarks has not been developed. To this end, the purpose of this study is to propose a co...

Online travel reviews have become increasingly important as a result of the intangible and heterogeneous characteristics of the tourism industry as well as the recent diffusion of social media. This exploratory case study intends to examine the comparative importance of the six heuristic attributes (reviewer location, reviewer level, reviewer helpf...

CouchSurfing is a free social-network-based online hospitality exchange network, aptly representing a new sharing economy phenomenon. Based on social capital theory and previous literature, this study attempts to answer why hosts help strangers without any expected economic benefit within online hospitality exchange networks. An empirical study bas...

Purpose The purpose of this study is to explore the effect of two types of presentation formats (textual and imagery) involving online restaurant reviews (ORRs). The study examines ORRs on the basis of review usefulness and review enjoyment; the study investigates the effects of the two presentation formats on review usefulness and review enjoymen...

This study investigates the role of content and noncontent cues of tourism information quality in forming users’ destination image in social media. Empirical analysis based on data collected from Sina Weibo users suggests that several content cues and web page design as a noncontent cue are positively related with cognitive and affective images, wh...

Recently, although many government agencies, including the Korea Tourism Organization, have been operating two-way interactive online idea proposal communities in order to reflect the various ideas of citizens in business, the utilization rate is still extremely low due to the lack of public`s understandings and management`s commitments. Therefore,...

This study explores how travelers select a restaurant for dining out, given that restaurant customers consider diverse attributes in making a selection. By applying a conjoint analysis, an exploratory multiple-case study is conducted for three restaurants in New York City. Findings from Study 1 (an overall travelers group) and Study 2 (two differen...

Nowadays, it is common for people to find product or service information from various information sources on social networking sites (SNS). Among the many embedded communication tools in SNS, our study focuses on fan pages and page followers, highlighting their continuous visiting behavior to company fan pages in the context of Facebook. Based on u...

Crowdfunding has been regarded as a novel way of collecting money for innovators to launch products and services by opening their ideas in online. This funding approach is differentiated from a traditional fundraising alternative in terms of project evaluation and risk management. In this paper, we question the reason why some crowdfunding projects...

Purpose – The purpose of this paper is to investigate how consumers respond to price changes by analyzing online product reviews (OPRs) posted on a product (Amazon’s Kindle 2), and to suggest several future research topics on online consumers’ reactions embedded in OPRs. Design/methodology/approach – An exploratory case study is conducted using...

Recently, due to the rapid development of IT (information technologies), a variety of attempts have been made to incorporate IT into other fields such as finance and manufacturing. Among them, a novel concept in the spotlight is FinTech, which is a combined word of finance and technology. FinTech is a line of business demonstrating an innovation de...

Since the Industrial Revolution, which made the mass production and mass distribution of standardized goods possible, machine-made (manufactured) products have accounted for the majority of the market. However, in recent years, the phenomenon of purchasing even more expensive handmade products has become a noticeable trend as consumers have started...

Recently, the proliferation of mobile devices such as smartphones and tablet personal computers and the development of information communication technologies (ICT) have led to a big trend of a shift from single-channel shopping to multi-channel shopping. With the emergence of a "smart" group of consumers who want to shop in more reasonable and conv...

A growing reliance on online travel reviews (OTRs) as a salient information source facilitates research on online reviews in terms of consumer perceptions and purchase decisions about tourism products. Heretofore, most of literature on online reviews has been paying attention to text-based reviews. Due to the increasing usage of visual review forma...

Purpose – The purpose of this paper is to investigate the impact of features involving online product reviews (OPRs) on information adoption by new product developers (NPDs). Design/methodology/approach – In total, 143 OPRs on a specific product on Amazon.com were collected as the sample of this study. Using content analysis ratings and observed d...

As the individual participation in online news sites proliferates, the importance of online news comments has been increasing. Social comment services which help people leave comments on news articles using their own SNS (social networking site) accounts have gained popularity recently. Using data gathered from an online news site, this study, ther...

This study proposes an integrated model of users’ intention to purchase paid smartphone applications. Focusing on individual-level perceptions of paid smartphone apps, it investigates the impacts of paid apps’ characteristics (perceived usefulness and perceived price), as well as their users’ personal (personal motivation and self-efficacy) and soc...

Recently, many companies have launched a new business model related to the mobile gift service in order to achieve or sustain a competitive advantage in the fast-growing mobile market. Due to the well combination of mobile technology advantages and offline gift-giving motivations, a mobile gift service has been proliferating over recent years. Alth...

Hotel guests’ expectations and actual experiences on hotel service quality often fail to coincide due to guests’ unusually high anticipations, hotels’ complete breakdowns in delivering their standard, or the combination of both. Moreover, this disconfirmation could be augmented contingent upon the level of hotel segment (hotel star-classification)...

Recently, the personal cloud computing service has been being spotlighted as an individual tool of productivity enhancement. However, compared to the rosy forecast, its diffusion rate in the domestic (Korean) market is much slower than expected. In order to find the reason for the slow growth of personal cloud computing service, we attempt to ident...

Recently, the personal cloud computing service has been being spotlighted as an individual tool of productivity enhancement. However, compared to the rosy forecast, its diffusion rate in the domestic (Korean) market is much slower than expected. In order to find the reason for the slow growth of personal cloud computing service, we attempt to ident...

Submitted：October 28, 2014 1 st Revision：March 9, 2015 Accepted：March 12, 2015 * 아주대학교 경영대학 e-비즈니스학과 ** 아주대학교 경영대학 e-비즈니스학과 조교수, 교신저자 Recently, many companies have launched a new business model related to the mobile gift service in order to achieve or sustain a competitive advantage in the fast-growing mobile market. Due to the well combination of...

Information systems (IS) have become ubiquitous and changed every aspect of how people live their lives. While some IS have been successfully adopted and widely used, others have failed to be adopted and crowded out in spite of remarkable progress in technologies. Both the technology acceptance model (TAM) and the IS Success Model (ISSM), among man...

Government and public institutions have been releasing a number of mobile applications in order to provide diverse public services in the mobile environment. However, due to their one-sided and fragmented service with the lack of adequate care for users, the utilization rate is extremely poor. Therefore, this study, based on a relevant literature r...