• ETRI Journal
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• v.25 no.4
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• pp.258-265
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• 2003

In our study, we extracted the market, finance, and government factors determining R&D investment of individual firms in the IT industry in Korea. We collected the financial data of 515 individual firms belonging to IT and non-IT industries between 1980 and 1999 from the Korea Investors Service's database and investigated the empirical relationship between the factors using an ordinary regression model, a fixed effects model, and a random effects model. The main findings of our study are as follows: i) The Herfindahl Index variable representing the degree of market concentration is statistically insignificant in explaining R&D expenditures in the IT manufacturing industry. ii) Assets, which is used as a proxy variable for firm size, have a positive and statistically significant coefficient. These two results suggest that the Schumpeterian Hypothesis may be only partially applied to the IT manufacturing industry in Korea. iii) The dividend variable has a negative value and is statistically significant, indicating that a tendency of high dividends can restrict the internal cash flow for R&D investment. iv) The sales variable representing growth potential shows a positive coefficient. v) The subsidy as a proxy variable for governmental R&D promotion policies is positively correlated with R&D expenditure. This suggests that government policy has played a significant role in promoting R&D activities of IT firms in Korea since 1980. vi) Using a dummy variable, we verified that firms reduced their R&D investments to secure sufficient liquidity under the restructuring pressure during Korea's 1998 and 1999 economic crisis.

• Electronics and Telecommunications Trends
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• v.34 no.6
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• pp.17-27
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• 2019

This paper introduces the 5G spectrum auction in Germany that occurred last summer and ended overheatedly after an extraordinarily long period. We describe the context of the latest German spectrum auction and trace the participants' bidding behavior. This case details the trend of the 5G spectrum auction and the factors that affect the spectrum auction as follows: First, it is determined that investment obligations that force network installations can be a financial burden to mobile network operators (MNOs) and require a careful approach. Second, excess demands can cause auction overheating and the spectrum supply volume needs to be determined by a proper demand forecast and investment incentive. Third, 'Set-Aside' for local usage aids in developing the vertical industry; however it limits the spectrum supply for mobiles and leads to higher bidding prices. Fourth, a modified adoption of a typical spectrum auction can alleviate MNO's financial burdens to secure the broadband spectrum. Finally, competition to secure the necessary bandwidth in the situation of limited spectrum supply may delay the process of the spectrum auction, causing it overheated.

• Electronics and Telecommunications Trends
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• v.37 no.4
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• pp.1-10
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• 2022

As the response to climate change becomes a more pressing global issue, so do expectations for climate change in the green information and communication technology (ICT) industry and the possibility of solving environmental problems through ICT. However, because the green ICT industry is still in its early stages, there is little research on it. Understanding the startup ecosystem in the industry is helpful for recognizing innovation trends in emerging technologies such as green ICT. In this regard, this paper investigates the current state and characteristics of the green ICT ecosystem and presents implications based on an examination of startup venture capital investment trends and submarket identification in the green ICT industry as emphasized by the carbon neutrality paradigm shift. The analysis included 4,807 companies and 3,990 funding records, as well as exploratory data analysis and "k-means" clustering techniques.

• Journal of Korean Society for Quality Management
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• v.51 no.4
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• pp.691-700
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• 2023

Purpose: This study aims to analyze the diffusion pattern of the Mongolian mobile phone market. In particular, we used a generalized diffusion model to explore the factors affecting market potenial. Methods: We used three diffusion models to estimate the number of mobile subscribers in Mongolia. Based on the Logistic model with the best fitness, we introduced time-varying market potential and explored the influence of various independent variables such as GDP and inflation. Results: Among the basic diffusion models, the Logistic model was the best in terms of estimation performance and statistical significance. The estimation results of the Generalized Logistic model confirm that investment in the telecommunication sector has a significant positive effect on market potential. The estimation of the Generalized Logistic model effectively describes the continuous growth of the Mongolian telecommunications market until recently. Conclusion: We have analyzed the diffusion pattern of the Mongolian telecommunications market and found that the amount of investment in the sector leads to the growth of the market size. This study is original in terms of its subject - Mongolian telecommunications market and methodology - time-varying market potential.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.10a
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• pp.824-828
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• 2003

On February 20, 2003, the FCC, the regulator in US, adopted its UNE triennial Review decision, the most sweeping ruling affecting the telecommunications industry since 1996. The FCC adopted a policy of preserving access to the legacy network, while deregulating new, "next generation" networks utilizing fiber facilities. Baby bell like Verizon, SBC strongly insisted that the FCC should relax the unbundling rules to be enlarged the network investment of telecommunication providers. However, this FCC′s determination looks like the partial acceptance of their assertions. This paper mainly will review the existing studies about the impact of UNEs on investment incentives and then find out some implications to be applied in Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1999.11a
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• pp.60-65
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• 1999

We examine the causal relationship between telecommunication standardization investment and the sale of telecommunication industry by using Granger causality model. Statistically, we show that telecommunication standardization investment precedes the sale of telecommunication industry. As a result we suggest that the investment on telecommunication standardization should be proceed to promote the sale of telecommunication industry.

• Knowledge Management Research
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• v.24 no.3
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• pp.195-215
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• 2023

In the telecommunications service industry, until now, it has been possible for Network Operators (NOs) to secure a competitive advantage to increase subscribers and profits through network investment. However, amid a big change to digital economy, network investment fails to lead to increase profits. These days platform companies without holing network infrastructure have a more competitive advantage and take more profits. This makes NOs gradually lose interest in network investment. The purpose of this paper is to find policy measures to promote network investment in digital economy. Specifically, we identify the factors influencing the network investment and promising policy measures energizing the investment, and then analyze their priorities and derive policy implications through Analytic Hierarchy Process (AHP) and Analytic Network Process (ANP). The results of this paper show that market competition is more preferred to public intervention in promoting network investment. However, in order to guarantee and expand the universal access to network, it is necessary to consider expanding the role of the public, focusing on non-economic areas.

• ETRI Journal
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• v.7 no.4
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• pp.15-23
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• 1985

Korea is trying to build the advanced telecommunications system to lead the information society in advance, which will demand a large amount of internal funds. The degree of rate level of telecommunications services. The objective of this article is to set up the principle which will be applied to decide the level of total revenue requirement(TRR) of telecommunications services in Korea. The trait of the principle is to specify the relation between the investment volume in telecommunications and gross fixed capital formation (G. F. C. F)at the national level. This article also proposes the m,d-term alternatives of strategic variables for the application of the principle.

• Electronics and Telecommunications Trends
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• v.13 no.1 s.49
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• pp.21-28
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• 1998

가입자망 투자비용은 전화망의 접속료를 구성하는 비용 요소 중 가장 중요한 부분이다. 본 논문은 대도시지역의 전화가입자망 구축에 소요되는 투자비용을 추정하고, 이러한 투자비용 산출을 위한 일반적인 비용모델의 개발에 관한 것이다. 서울을 대상지역으로 하여 주요 비용요소들이 정의되었고 선로기술, 지형특성, 가입자 수 등의 연관성이 분석되었다. 연구결과는 다사업자 환경에서 접속료 추정을 위한 비용모델 설계에 활용될 수 있다.

• Electronics and Telecommunications Trends
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• v.13 no.1 s.49
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• pp.14-20
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• 1998

본 논문은 대도시 전화망에서 루팅 효과, 통화량에 준한 망설계기법에서 전송시설의 경제적 규모, 그리고 투자비용 변화를 분석하기 위한 시뮬레이션 모델 개발에 관한 것이다. 모의시험 결과는 전화망에서 교환/전송에 소요되는 비용은 루팅방식의 변경에 따라서 크게 영향을 받으며, 고속 전송로 사용에 따른 규모의 경제효과가 클수록 망 구축에 소요되는 비용이 현저히 작아지는 것으로 나타났다.