• Journal of Digital Convergence
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• v.14 no.12
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• pp.13-25
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• 2016

This paper analyses the impacts of the characteristics of policyholder and contract on the lapse of Voluntarily Insured Person in National Pension, using the recent lapse data from National Pension Service. The logistic regression model is used in examining lapse odds with several independent variables. The result demonstrates several hypotheses of the lapse behaviors. First, the lapse odds of men is lower than that of women. Second, the effect of age on lapse odds shows concave shave with the peak at 37. Third, insured period has a negative effect on lapse odds in entrants sample. Fourth, standard monthly income has little effect on lapse in either sample. Fifth, the lapse odds decreases as the expected benefit ratio increases. Sixth, 2013 pension bill resulted in the sharp increase of lapse odds and the effect was greater for entrants. Last but not least, spatial environment such as residence also affects the lapse behavior.

• Journal of Digital Convergence
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• v.16 no.10
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• pp.11-26
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• 2018

A strategic technology selection for GHG reduction is crucial to secure mitigation means. Especially, a technology selection for a public sector is encouraged to consider integrated perspectives due to various stakeholders under public goals. However, previous studies have mainly focused on technological and economic factors, moreover, consistent criteria have not been applied. This study develops indicators for the GHG reduction technology selection from the public perspective based on delphi method with 22 experts. The result provides valid indicators of technology selection for GHG reduction considering an aspect of technology, economics, environment, policy, society. Specifically, 16 indicators from 5 categories on commercialized technology, and 18 indicators from 5 categories on new technology. We expect that those indicators are useful for a decision-making tool of technology selection. Moreover, provide the basis for the study of judgement criteria to evaluate GHG reduction technology.

• Journal of Digital Convergence
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• v.18 no.3
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• pp.111-121
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• 2020

The purpose of this study is to examine the satisfaction of consumers using the mobile navigation service which is continuously growing. This study examined variables that affect the service use behaviors and satisfaction of 1200 consumers using service. According to the results of the study, consumers used the service 1-2 or 3-4 times per week, more frequently used in the lunch time(weekends) and in the morning(weekdays). The core functional dimension was shown to have the largest effect on satisfaction with the service. Among consumption emotions, positive emotions had effects in the positive direction while negative emotions had effects in the negative direction, and the effect of innovativeness was not significant. Through the foregoing, the use behavior and the formation of satisfaction could be analyzed and the results of this study can be used in establishing service strategies later and can be also used as basic data of the navigation industry.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.151-167
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• 2020

This study examined the factors affecting the behavioral intention for agricultural drone service. The survey results of 324 agricultural-related workers were analyzed using SPSS v22.0 and PROCESS macro v3.4. The effects of technology acceptance factors by UTAUT on the behavioral intention for agricultural drone service and the mediating effects of perceived benefits were analyzed. The results are as follows: First, the technology acceptance factors had positive (+) effects on perceived benefits and behavioral intention for agricultural drone service. Second, economics mediated between factors excluding performance expectancy and intention, convenience also mediated between factors excluding social influence and intention, and there was no significant mediating effect of practicality benefits. In the future, a further research is required for people trained in agriculture or drone or had a drone license.

• Journal of Digital Convergence
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• v.18 no.9
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• pp.71-79
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• 2020

In recent years, Korean consumption trends have undergone rapid changes. Also, subscription economy has emerged and is growing as a new shopping method. The purpose of this study was to verify the relationship between consumer attitude and intention to continue to use of the consumption value of subscription service based on subscription economy. To this end, we analyzed the structural equation modeling for 300 consumers who used HMR products through subscription services. The analysis results are as follows. First, consumption value (functional, emotional, social and monetary) of HMR products perceived by subscribers had a significantly positive effect on consumer attitude except for monetary value. Second, consumer attitude was found to have a positive effect on consumers' intention to continue to use. This study contributes to the development of academic theories related to the subscription service in the early stages and provides managerial implications for HMR-related companies that want to utilize subscription service.

• Journal of Digital Convergence
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• v.18 no.9
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• pp.181-190
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• 2020

The purpose of this study is to analyze the trends of wearable keywords using text mining methodology. To this end, 11,952 newspaper articles were collected from 1992 to 2019, and frequency analysis and bi-gram analysis were applied. The frequency analysis showed that Samsung Electronics, LG Electronics, and Apple were extracted as the highest frequency words, and smart watches and smart bands continued to emerge as higher frequency in terms of devices. As a result of the analysis of the bi-gram, it was confirmed that the sequence of two adjacent words such as world-first and world-largest appeared continuously, and related new bi-gram words were derived whenever issues or events occurred. This trend of wearable keywords will be useful for understanding the wearable trend and future direction.

• Journal of Digital Convergence
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• v.12 no.10
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• pp.235-242
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• 2014

Although the requirement of enterprise security implementation has been raised, a few research on security collaboration, which is one of the methods for enterprise security has been performed. This paper approached information security from the collaboration-centric perspective and propose critical success factors for security collaboration. In this study, a model of security collaboration, which includes coordination and cooperation activities was devised. Based on the previous research on organizational collaboration literature, the eight success factors for collaboration were deduced and examined the significance of the eight factors using the PLS-SEM statistical method with data of 106 samples who are security and IT professionals who have worked for more than 7 years. The result of the hypothesis test supported that trust, expertise motivation, collaboration performance criteria, top manager support and collaboration tools are the prominent factors of security collaboration.

• Journal of Digital Convergence
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• v.12 no.10
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• pp.243-252
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• 2014

Many researches about the effect on politics, economics and Sociocultural phenomenon using the social media are in progress. Authors utilized NAVER Trend most famous web browsing service in korea, NAVER Blog social media, NAVER Cafe service and Open Data(API) and also used temperature, humidity index data of Korea Meteorological Administration. This study analyzed a change of the public's emotion in korea using Cluster analysis of vocabulary of taste among its of feelings and senses. K-means clustering was followed by decision of the number of groups which was used Chi-square goodness of fit test and ward analysis. Eight groups was made and it represented sensitive vocabulary. By Discriminant analysis, eight groups decided by Cluster analysis has 98.9% accuracy. The change of the public's emotion has capability to predict people's activity so they can share sensibility and a bond of sympathy developed between them.

• Journal of Digital Convergence
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• v.15 no.3
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• pp.47-54
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• 2017

In this study, the organizational performance is divided into the policy perspective, the customer perspective, and the internal viewpoint rather than the financial perspective. The public institutions selected as examples of this study are public institutes under the Ministry of Environment, which are established to promote environmental industry development and environmental technology development projects, and promote the dissemination and practical use of developed environmental technologies. The public institutions that were the target of the study were concerned about how to define organizational performance and how to improve organizational performance. In addition, the institutions were interested in measuring performance in terms of customers and policies rather than financial performance. As a result of this study, it was found that the public institutions which were the subject of study were not very high in terms of policy, customer, and internal performance. In order to enhance the organization's policy performance, customer performance and internal performance, it is necessary to communicate smoothly among the members of the organization, horizontal organizational structure, encourage participation in the client's policy process, and redesign the business process from the customer's perspective.

• Journal of Digital Convergence
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• v.14 no.7
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• pp.11-20
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• 2016

This study examines the possibility of implementing the technology financing for export-import based small and medium sized enterprises. Our sample consists of 2,753 small and medium sized enterprises, receiving financial support from the Export-Import Bank of Korea for the period of 2011-2013. We find that only 400(200) firms reserve IPs(patents) annually. Given that IPs are likely to concentrate on manufacturer industries such as electronic components, computers, video, sound and communication equipment manufacturing(KSIC 26), other machinery and equipment manufacturing(KSIC 29), manufacture of motor vehicles and trailers(KSIC 31). We also find that the total assets, sales and R&D expenses of IP holding companies greatly exceeds those of companies without IPs. In addition, IP holding companies' liquidity seems slight edge and the leverage ratio is somewhat lower. However, profitability ratios of IP holding companies are rather than harsh or similar level. 20~30% of IP holding firms show very week credit scores, implying that banks' default risk is expected to be significant.