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The role of R&D factors in economic growth
(경제 성장에서 연구개발(R&D) 요인의 역할)

□ 보고서는 연구개발(R&D)에서 노동 이외의 투입 요소가 경제 성장에 미치는 영향을 분석하는 내용을 다루고 있음. 기존 연구에서는 R&D가 주로 연구 인력의 증가에 의해 성장한다고 보았지만, 본 연구는 비노동 투입 요소의 역할이 더욱 중요하다는 점을 강조함. 특히, 1960년대 이후 아이디어 성장의 약 77%가 비노동 투입 요소 증가에 기인한다고 분석함

□ R&D에서 비노동 투입 요소는 연구 장비, 인프라, 소프트웨어 등으로 구성되며, 이들의 사용 비율이 연구 인력 증가보다 훨씬 빠르게 확대되고 있음. 연구에 따르면, 비노동 투입 요소가 증가함에 따라 R&D 생산성이 향상되었으며, 이는 단순한 연구 집중도의 증가 때문이 아니라 균형 성장 경로에서 자연스럽게 나타나는 현상임. 즉, 연구개발 투자에서 노동과 비노동 요소가 상호 보완적인 관계를 가지며, 특정 요소에 대한 과도한 의존은 오히려 아이디어 성장을 둔화시킬 수 있음을 시사함

□ 또한, 본 연구는 비노동 투입 요소의 상대적 성장 속도가 연구 인력 증가 속도보다 빠를 경우, 아이디어 성장 속도가 둔화될 가능성이 있다는 점을 지적함. 이는 바우몰 효과
(Baumol's cost disease)와 유사한 현상으로, 노동과 비노동 요소가 상호 보완적인 관계에 있을 때 연구 인력이 상대적으로 부족해질 경우 전체적인 아이디어 성장이 저해될 수 있음을 의미함. 본 연구에서는 이러한 구조적 변화가 지속될 경우, 연구개발 정책과 자본 투자 전략의 조정이 필요함을 강조함

□ 마지막으로, 연구자는 미국의 연구개발 기업을 대상으로 세금 정책 변화에 따른 투자 반응을 분석하여, R&D에서 노동과 자본이 상호 보완적인 관계를 가진다는 점을 실증적으로 확인함. 연구 결과, 연구개발 투자가 특정 요소에 집중될 경우 아이디어 성장이 둔화될 위험이 있으며, 균형 잡힌 R&D 투자가 필요하다는 결론을 도출함. 이를 통해 정부와 기업은 연구개발 전략을 보다 효율적으로 설계해야 하며, 지속 가능한 혁신 생태계를 구축하는 것이 중요함

목차

Title page

Contents

Abstract 2

1. Introduction 3

2. Data and measurement 6

2.1. Data 6

2.2. Measuring R&D factors 7

3. Decomposing idea growth 7

3.1. Framework 7

3.2. Decomposition 8

3.3. R&D factors without rising research intensity 10

3.4. Discussion 12

4. Implications for growth 12

4.1. Comparative statics across balanced growth paths 12

4.2. Substitution along a constant growth path 13

4.3. Discussion 14

5. Estimating the idea production function elasticity of substitution 14

5.1. Empirical design 14

5.2. Estimation results 16

5.3. Recovering the elasticity of substitution 17

5.4. Discussion 21

6. Conclusion 21

References 23

Appendix 24

A. Theory appendix 24

B. Appendix Figures 28

Table 1. Effect of bonus depreciation on firms' R&D 17

Figure 1. Aggregate trends in R&D factor usage 10

Figure 2. Factor decomposition of idea growth 11

Figure 3. Trends of dependent variables across treatment groups 16

Figure 4. Estimated elasticity of substitution between capital and labor in R&D 19

Figure 5. P-values for elasticity of substitution greater than or equal to 1 20

Figure 6. Estimated elasticity of substitution between capital and labor in R&D, alternate specification 29

Figure 7. P-values for elasticity of substitution greater than or equal to 1, alternate specification 30

Figure 8. Results over expanded domain 31

해시태그

#연구개발 # 경제성장 # 기술혁신 # R&D투자효과

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The role of R&D factors in economic growth

(경제 성장에서 연구개발(R&D) 요인의 역할)