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국회도서관 홈으로 정보검색 소장정보 검색

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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

Tables

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

Figures

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