Sunghun Chung

Job performance through mobile enterprise systems: The role of organizational agility, location independence, and task characteristics

This study examines how organizational workers improve their perceived job performance through the use of Mobile Enterprise Systems (MES), while also investigating the impact of perceived organizational agility and location independence on technology acceptance of MES. This study also tests the moderating role of task characteristics (task significance and feedback) on the relationship between MES usage and perceived job performance. Based on the extant technology acceptance model (TAM), we proposed an extended TAM and conducted a large-scale survey among organizational workers who use MES in their workplace across industries. Our findings suggest that both positive attitude toward MES and a high level of habitual MES usage are positively associated with perceived job performance, and that task characteristics positively moderate the relationship between habitual usage (attitude toward MES) and perceived job performance. More importantly, we also found that organizational agility is positively associated with both perceived ease of use and perceived usefulness, while location independence is positively associated with perceived ease of use. The present findings provide us with a deeper understanding of how organizational workers utilize MES and how they improve their perceived job performance through the use of MES. Based on these findings, we discuss further implications and limitations.

The role of online informediaries for consumers

Purpose – The purpose of this study is to find the role of online informediaries on the perspective of price comparison and information aggregator. Specifically, the author wants to explain how the level of product involvement moderates the effect of price dispersion and product information quality on attitude toward product in online informediaries.Design/methodology/approach – The data for this study are obtained from a three‐way factorial experimental research design. Data were collected from 258 college students who have an experience with an online informediary. Combining ANCOVA and regression analysis enables the study of attitude formation and yields encouraging results.Findings – The study finds that high‐involvement consumers focus on systematic cues (e.g. product attributes) in evaluating product quality. However, when they feel that their initial search yields insufficient results, causing them to perceive more product performance risk, they search for additional cues (e.g. price dispersion). L...

Effects of strategic alignment on IS success: the mediation role of IS investment in Korea

The purpose of this research is to develop a comprehensive information system (IS) evaluation model for IS success linked to organizational performance. The primary focus of this research is to investigate the role of IT investment in business values by means of a group survey of about 300 business executives in Korea. We used the contingency theory to discover the mediation effect of IS investment on strategic alignment and IS success. In contrast to previous research, this study expanded the test scope to IS architecture and organizational structure at the operational level. The results from 273 business executives in Korea indicated that strategy integration with IT is positively related to IT investment, and IT investment is a critical antecedent of IS success. Thus, the implications of the findings are that right-directional IT investment has played an important role in the success of IT companies in Korea.

Firms' Social Media Efforts, Consumer Behavior, and Firm Performance: Evidence from Facebook

Despite the increasing attention paid to the business value of social media, it is still not clear how they affect firm performance. This study theorizes and empirically examines how firms’ social media efforts — in terms of intensity, richness, and responsiveness — influence consumer behavior (engagement and attention) and firm performance. Using detailed data collected from the Facebook pages of 63 firms over the 2010-2012 period, we find that the richness and responsiveness of a firm’s social media efforts are significantly associated with the firm’s market performance, captured by abnormal returns and Tobin’s q. Interestingly, the intensity of a firm’s social media efforts is not significantly associated with firm performance. We also find that not only do consumer engagement and attention directly impact firm performance, but they also mediate the relationship between a firm’s social media efforts and firm performance. Unlike prior studies that examine the impact of third-party or consumer-initiated social media, such as blogs and consumer ratings, our study focuses on estimating financial returns to firms’ own efforts on firm-initiated social media, thereby assessing the business value of social media directly.

An empirical analysis of usage dynamics in a mobile music app: : evidence from large-scale data

Purpose – The purpose of this paper is to quantify how mobile app usage relates to the unique characteristics of behavioral orientations and content types, focussing on the interrelationship among content usage in the context of in-app purchase. Design/methodology/approach – Using a large-scale data set of individual content usage in a particular music mobile app, the author builds a simultaneous equation panel data model to examine dynamic interdependent usage of mobile app. Findings – The paper finds a positive temporal effect of self-oriented content usage (download) on other-oriented content usage (gift), based on behavioral orientation, and also a temporal interdependence between external (ringtone) and internal usage (mp3) based on types of content. The paper also finds that the fourth generation communications standard increases content usage in this mobile app. Practical implications – These findings provide useful insights for mobile app developers, mobile network operators, content providers, an...

Solving strategy for unintended criticism in online space consumer response to firm crisis in online discussion forum

Purpose – The purpose of this paper is to examine how information load, consumers’ regulatory focus, and prior attitudes interact to influence consumers’ response to firm crisis in the context of online discussion forum. By doing this, this study presents the solving strategy for unintended criticism in online space. Design/methodology/approach – Based on selective exposure and regulatory focus theory, the author proposes that consumers’ regulatory focus and prior attitudes toward a focal firm influence the relationship between information load and selective exposure phenomenon. The data for this study are obtained from an experimental research design. Data were collected from 165 college students who have an experience with an online discussion forum. Findings – The author finds that selective exposure is likely to occur when information load is high (vs low). More importantly, this selective exposure is influenced by regulatory focus. Prevention-focussed consumers with favorable (vs unfavorable) prior a...

Firm’s social media efforts, consumer behavior, and firm performance

Despite the increasing attention paid to the business value of social media, it is still not clear how they affect firm performance. This study theorizes and empirically examines how firms’ social media efforts — in terms of intensity, richness, and responsiveness — influence consumer behavior (engagement and attention) and firm performance. Using detailed data collected from the Facebook pages of 63 firms over the 2010-2012 period, we find that the richness and responsiveness of a firm’s social media efforts are significantly associated with the firm’s market performance, captured by abnormal returns and Tobin’s q. Interestingly, the intensity of a firm’s social media efforts is not significantly associated with firm performance. We also find that not only do consumer engagement and attention directly impact firm performance, but they also mediate the relationship between a firm’s social media efforts and firm performance. Unlike prior studies that examine the impact of third-party or consumer-initiated social media, such as blogs and consumer ratings, our study focuses on estimating financial returns to firms’ own efforts on firm-initiated social media, thereby assessing the business value of social media directly.

Does Give-and-Take Really Matter? Dynamics of Social Interactions in Social Network

Despite the increasing attention paid to the social interaction in online social networks, it is still not clear how social media users interact with each other, consume different content, and expand their social network. This study conceptualizes two types of user engagement (internal and external) and empirically examines the dynamics between user’s engagement, friends’ engagement, and network size. Using detailed social media activity data collected from over 20,000 Facebook users for three years, we find that when people externally engage in their friends’ social space rather than one’s own space, they can make more friends and also receive friends’ engagement in one’s own social space. However, when people receive more friends’ engagement in their social space and make more friends, they are likely to reduce their engagement in social media (both externally as well as internally). Our findings can provide useful insights for the literature on social ties, user-generated content, and online peer influence.

Financial Returns to Firms’ Communication Actions on Firm-Initiated Social Media: Evidence from Facebook Business Pages

Despite the increasing attention paid to the business value of social media, it is still not clear how they affect firm performance. This study theorizes and empirically examines how firms’ social media efforts — in terms of intensity, richness, and responsiveness — influence consumer behavior (engagement and attention) and firm performance. Using detailed data collected from the Facebook pages of 63 firms over the 2010-2012 period, we find that the richness and responsiveness of a firm’s social media efforts are significantly associated with the firm’s market performance, captured by abnormal returns and Tobin’s q. Interestingly, the intensity of a firm’s social media efforts is not significantly associated with firm performance. We also find that not only do consumer engagement and attention directly impact firm performance, but they also mediate the relationship between a firm’s social media efforts and firm performance. Unlike prior studies that examine the impact of third-party or consumer-initiated social media, such as blogs and consumer ratings, our study focuses on estimating financial returns to firms’ own efforts on firm-initiated social media, thereby assessing the business value of social media directly.

An empirical analysis of a maturity model to assess information system success: a firm-level perspective

ABSTRACT This research investigates the relationship between IS investment and IS success and the moderating effects of IS maturity. We find the moderating role of IS maturity between IS investment and IS success with a contingency perspective. As administering a group survey of about 300 business executives across multiple industries, the results of this study indicate that IS investment is a critical antecedent of IS success, and IS maturity has a positive moderating effect on this relationship. The implication of the findings implies that global companies should consider the maturity of their IS management: as a crucial factor in maximising the effectiveness of IS investment.