Recent Issues

Vol.20/1 (2014, June)
Organizational Knowledge and Localized Competition: A Case of a High Performer that is Socially Constructed
Author Jonghoon Bae
Keywords Localized Competition, Knowledge-based View, Interfirm Rivalry, Social Construction
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This study seeks to elucidate conditions under which high performers emerge independent of their internal resources even when competition in the output market is intense. In particular, I present an extended model of localized competition in which ‘ill-informed’ producers compete with each other by ‘observing’ the actions of their rivals and ‘inferring’ the association between the cost and benefit of their action from observable market response to the action of their rivals. To this end, I combine three independent streams of research, including the ecological model of localized competition, organizational knowledge and Harrison White’s model of market (Carroll and Hannan 2000; Garicano 2000; Grant 1996; Nelson and Winter 1982; White 1981). An analytical strategy chosen is to parameterize the interplay of organizational knowledge and localized competition so that this study seeks to theorize a general competitive process that underlies the emergence of high performers without ignoring the role of firm heterogeneity in internal resources. In particular, this study characterizes market competition with respect to four parameters, including (1) the size of the neighborhood of a firm, (2) the upper and (3) lower bound of knowledge bases, and (4) a type of the market. The implications of this model are further explored in the context of multimarket competition as well as resource-partitioning.
Vol.20/1 (2014, June)
How Does the Use of External Knowledge Influence Innovative Performance of Service Firm? An Introductory Study of Openness and Service Innovation
Author Seongwuk Moon
Keywords Openness to External Knowledge, Types of Innovation, Innovation Performance, and Korean Service Firms
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This study examines how the use of external knowledge influences innovative performance of Korean service firms. Especially, this study underscores whether the relationship between external knowledge and innovation in Korean service industries differs from the relationship in Korean manufacturing industries found by Moon (2011). Using 2006 Korean Innovation Survey in service sector, this study tests whether the use of external knowledge improves innovative performance and how absorp¬tive capacity, new startup and appropriation methods moderate the effect of the use of external knowledge on Korean service firms’ innovation. The relationship between openness and innovative performance in service is different from that in manufacturing in Korea: First, openness in service is more effective for radical innovation than for incre¬mental innovation; in contrast, openness in manufacturing was more effective for incremental innovation than for radical innovation. Second, there is no complementarity between openness and R&D intensity in the service sector; in contrast, there existed the complementarity for incremental innovation in the manufacturing sector. Third, when a firm uses too many appropriation methods, openness of service firms is not effective. Lastly, the quality of human capital is important for service innovation while it was not for manufacturing innovation in Korea.
Vol.20/1 (2014, June)
Corporate Governance, Product Market Competition, and Payout Policy
Author Hee Sub Byun, Jihye Lee, and Kyung Suh Park
Keywords Corporate governance, Product market competition, Market concentration, Interaction effect, Payout policy
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This paper investigates how the interaction between internal corporate governance and product market competition affects corporate payout. Empirically, existing papers demonstrate that corporate governance has a significantly negative effect on corporate payout; however, we observe that this negative relation is observed only in less competitive (concentrated) markets, and disappears or decreases in more competitive markets. The result suggests that the substitution effect between internal corporate governance and product market competition in the effect on firm value, as suggested in previous literatures, is also valid in payout policy. Our results will provide practical and institutional implications regarding the most efficient method of finding optimal internal corporate governance structure given market structures.
Vol.19/2 (2013, December)
Sources of HR Department Power: Scale Development and Validation*
Author HYE SOOK CHUNG, SUNG-CHOON KANG
Keywords HR department power, scale development, HRM strength
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HR department power plays a significant role in increasing organizational performance by influencing how intended HR strategies and practices are actually embraced and utilized by organizational members. Referring to French and Raven’s (1959) taxonomy, we present four bases (sanction, expert, referent, and legitimacy) of HR department power in the context of intraorganizational dynamics and develop their measurement scales. Findings indicate that the HR power bases represent an integrated framework that helps to build a coherent classification standard, showing meaningful relationships with HR department power, HRM strength, and organizational performance.
Vol.19/2 (2013, December)
Return and Volatility Transmission Between Oil Prices and Emerging Asian Markets
Author SANG HOON KANG, SEONG-MIN YOON
Keywords cross-market hedging, oil price risk, portfolio diversification, spillovers *
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We investigated return and volatility transmission between oil futures prices and ten Asian emerging indices using a VAR-bivariate GARCH model. We also analyzed the optimal weights and hedge ratios for optimizing portfolios to minimize the exposure to risk associated with oil futures price changes. We found no significant influence of oil futures price returns on Asian stock returns. However, strong volatility spillover was observed from oil futures price shocks and volatility to counterpart volatilities. In addition, optimal weights and hedge ratios suggested that incorporating the oil asset in a well-diversified portfolio effectively hedged the risks associated with oil price volatility.
Vol.19/2 (2013, December)
Managing Operational Proactiveness to Facilitate Functional Area Alignment and Enhance Business Performance
Author MUNSUNG RHEE, SATISH MEHRA
Keywords Proactiveness, strategic alignment, business performance, service management
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The aim of this paper is to explore the role of operational proactiveness with respect to achieving functional alignment and enhancing business performance. Using data from the retail banking industry, we investigate how operational proactiveness impacts strategic alignment and business performance. Results show that the operational proactiveness contributes to business performance through enhanced strategic alignment. Additionally, with assistance from a panel of experts, outcomes of the study were subjected to a reality check in order to develop managerial guidelines for operationalizing the findings of this research.
Vol.19/2 (2013, December)
Earnings Announcements, Analyst Forecasts, and Trading Volume
Author Minsup Song
Keywords earnings announcement, analyst forecast, forecast timing, stock price reaction, trading volume
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Empirical evidence shows that a significant proportion of analysts issue their forecasts at the time of an earnings announcement (Ivković and Jegadeesh 2004). These forecasts are commonly regarded as analyst interpretations of earnings news contained in the announcement (Schipper 1991). Although analytical studies suggest that market reaction to news from earnings announcement could be affected by analysts’ interpretation information (Kim and Verrecchia 1994, 1997), the vast majority of previous research has ignored whether and how these analysts’ interpreting forecasts affect the market reaction to the earnings announcements. Our empirical results show that sensitivity of trading volume reaction to earnings announcements is increasing in the number of announcement period analyst forecasts. The sensitivity of trading volume reaction is greater when there is small analyst forecast dispersion. We also find that stock return sensitivity is also increasing with the number of analyst forecasts. In general, our results suggests that analysts’ interpretation help disseminate new information contained in earnings announcement to the market.
Vol.19/1 (2013, June)
Evaluation of Reverse Mortgage Programs in Korea
Author Seungryul Ma, Yongheng Deng
Keywords Insurance premium structure, Reverse mortgage, Constant monthly payments, Graduate monthly payments, Total annual loan costs rates
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We analyze an actuarial model of reverse mortgage programs in Korea. Our analyses provide a comparison between the reverse mortgage loans structured with constant monthly payments and those that make graduate monthly payments which are indexed to the growth rate of consumer prices. Using the total annual loan cost measure, we find that the graduate monthly payments approach is more efficient than the constant monthly payments approach. Our analyses also confirms that younger age cohorts are more sensitive to changes in their loan terms. We propose therefore that the terms of reverse mortgage programs should be structured more conservatively for the relatively younger borrower groups. The results provide useful information to reverse mortgage borrowers considering the various payment options, and pertinent guidelines for the future operation of reverse mortgage systems in Korea and elsewhere.
Vol.19/1 (2013, June)
Dynamic Heterogeneous Choice Heuristics: A Bayesian Hidden Markov Mixture Model Approach
Author Jin Gyo Kim
Keywords Choice Heuristics, Choice Models, Hidden Markov Model, Heterogeneity, Dynamics, Bayesian Methods, Markov chain Monte Carlo
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Standard choice models implicitly assume that consumers, in order to maximize their expected utilities, compare each of the alternatives in their choice sets in terms of all available attributes. Consumer-level utility functions are frequently taken as linear, and overwhelmingly so as compensatory. However, due to limitations in information process capacity, characteristics of choice task environment and other internal or external constraints, consumers may search for satisfying alternatives rather than optimal ones by invoking other non-compensatory heuristics which free them from arduous attribute-by-attribute comparison. The question arises as to how often these non-compensatory rules are applied, and whether researchers can detect them using only standard data sources. This study aims to address two main issues regarding consumers’ use of decision-rules and heuristics in the real world: (1) whether they are heterogeneous across consumers and (2) whether they are changing for individual consumers over time. To these ends, we extend the standard linear compensatory rule assumption to more faithfully capture dynamic heuristic usage for each consumer. There are three reference heuristics studied in this paper, the well-known linear compensatory, disjunctive and conjunctive rules. Conditional on this known set of possible heuristics, a dynamic heterogeneous hidden Markov mixture choice model is developed to capture heuristic dynamics at the individual-level. When estimated on detergent scanner data, the proposed model offers strong evidence supporting both heterogeneity and dynamics in heuristics usage.
Vol.19/1 (2013, June)
Identifying Subject-Specific Relevant Explanatory Variables in Choice-Based Conjoint Studies
Author Jin Gyo Kim
Keywords Model Specification, Variable Selection, Model Selection, Conjoint, Choice Models, Heterogeneity, Bayesian Methods, Markov chain Monte Carlo
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It is customary in conjoint studies to introduce the same set of potential explanatory variables for each subject, so as best to allow any possible trade-offs to be made. However, this presumption can mask the possibility of some subjects’ considering only a subset of the presented attributes. Moreover, such subsets of relevant attributes can vary considerably across the population. This paper presents a model which allows researchers to identify relevant explanatory variables for each subject separately. This is accomplished via a solution to the well-known variable selection problem in the context of discrete choice models; the proposed solution can be widely applied throughout choice studies and in fact to other response types, such as ratings, direct paired comparisons, and ranks, with appropriate changes in likelihood function. When estimated on a choice-based conjoint data for dial-readout scale products, the proposed model is strongly preferred to the traditional random-effect specification for choice-based conjoint. A sizeable group of subjects, approximately 63%, were found to consider proper subsets of all attributes presented. There was a great deal of heterogeneity in attributes deemed relevant across subjects: the proportion of subjects who did not consider a given attribute among the six used in the study ranged from 17.4% to 41.3%. For those who did consider a given attribute, estimated attribute level part-worths were essentially identical for the proposed model and the traditional random-effect conjoint model; but this was not the case for non-considered attributes. In fact, the traditional model was found to suffer from systematic biases in aggregate part-worth magnitudes. Finally, and most important for marketing practice, allowing for the possibility that some subject may not consider particular attributes can lead to substantial design and revenue differences in supposedly ‘optimal’ products, at both the individual- and the aggregate-level.
Seoul Journal of Business
ISSN 1226-9816 (Print)
ISSN 2713-6213 (Online)