패널구조방정식을 활용한 IT기업의 R&D투자효과 연구: 특허 매개효과 중심으로 = R&D Investment Effect through Patent on IT firms using Panel Structural Equations

다국어 초록 (Multilingual Abstract)

This study analyzes not only the direct impact of R&D investment on corporate growth for 578 private firms in 2007-2016, but also whether corporate innovation activities play a role as a mediating parameter between R&D investment and corporate growth. For this purpose, we classify companies into IT and non-IT companies and measure the mediating effect by dividing innovation activities into the number of registered patents, applied patents, and sum of them. In addition, this study is based on both the systemGMM which is considered to be effective in solving the endogenous problems caused by the cross-sectional analysis in previous studies and ML-SEM which is a new method recently, and then compares two results. According to the empirical results, innovation activities has a role as partly mediating parameter on sales growth in non-IT companies. On the other hands, in IT companies, the increase in R&D investment leads to a decrease in sales of the company, and the increase in innovation activities increases the sales of the company. However, it was confirmed that IT companies also had positive effects by adjusting the lag of the R&D. In other words, this suggests that securing patents is more important than R&D investment for direct sales growth of IT companies. It is also evidence that immediate introduction of technology is necessary to respond to the speed of technological change since the cycle time of technologies of the IT field is relatively shorter compared to that of other fields.

참고문헌 (Reference)

1 김건식, "한국 제조업에서 혁신활동과 재무적 성과 간의 인과경로: 혁신성과 및 운영성과의 매개효과를 중심으로" 한국기술혁신학회 17 (17): 146-173, 2014

2 박준수, "특허취득의 공시가 기업가치에 미치는 영향에 관한 실증적 연구 : 코스닥시장을 중심으로" 단국대학교 대학원 2003

3 박선영, "특허분석을 통한 기술혁신과 기업성과의 관계분석" 한국기술혁신학회 9 (9): 1-25, 2006

4 이영덕, "정보통신기술의 상용화 성공요인 분석" 기술경영경제학회 12 (12): 259-276, 2004

5 권성훈, "우리나라의 연구개발투자 현황과 시사점" 국회입법조사처 2018

6 전성일, "산업 특성에 따른 연구개발비 지출과 특허취득이 기업가치에 차별적으로 반응하는가?" 한국지식경영학회 11 (11): 1-11, 2010

7 심재윤, "기업의 ICT투자가 ‘고용 없는 성장’을 이끄는가?" 한국지식경영학회 20 (20): 1-16, 2019

8 Oh, D, "Total Factor Productivity of Korean Manufacturing Industries: Comparison of Competing Models with Firm-level Data" (30) : 25-36, 2014

9 Baron, R. M, "The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations" 51 (51): 1173-1182, 1986

10 Lovell, C. K, "The Measurement of Productive Efficiency: Techniques and Applications" Oxford University Press 3-67, 1993

11 Rothwell, R, "Successful industrial innovation: critical factors for the 1990s" 22 (22): 221-240, 1992

12 Arellano, M, "Some tests of specification for panel data: Monte Carlo evidence and an application to employment equations" 58 (58): 277-297, 1991

13 김병수, "R&D 조직의 지식 경영 활동이 R&D 성과에 미치는 영향" 한국지식경영학회 13 (13): 25-39, 2012

14 Narin, F, "Patents as Indicators of Corporate Technological Strength" 16 (16): 143-155, 1987

15 Ernst, H, "Patenting Strategies in the German Mechanical Engineering Industry and Their Relationship to Company Performance" 15 (15): 225-240, 1995

16 Comanor, William S, "Patent statistics as a measure of technical change" 77 (77): 392-398, 1969

17 Griliches, Z, "Patent Statistics as Economic Indicators: A Survey," 28 (28): 1661-1707, 1990

18 Lee, K, "National innovation systems, economic complexity, and economic growth: c ountry p anel a nalysis u sing t he US patent data" 1-32, 2019

19 Blind, K, "Motive to Patent: Empirical Evidence from Germany" 35 (35): 655-672, 2006

20 Williams, R, "Linear dynamic panel-data estimation using maximum likelihood and structural equation modeling" 18 (18): 293-326, 2018

21 Blundell, R., W, "Initial Conditions and Moment Restrictions in Dynamic Panel Data Models" 87 (87): 115-143, 1998

22 Cockburn, I, "Industry Effects and Appropriability Measures in the Stock Market’s Valuation of R&D and Patents" 78 (78): 419-423, 1988

23 Roodman D, "How to do xtabond2: An introduction to difference and systemGMM in Stata" 9 (9): 86-136, 2009

24 Sobel, M, "Asymptotic Confidence Intervals for Indirect Effects in Structural Equation Models" (13) : 290-312, 1982