Chapters in this book

1. Frontmatter i
2. Preface vii
3. Contents xi
4. The setting of the problem 1
5. Patent statistics 18
6. The role of intellectual stimuli 57
7. The use of important inventions as a cause of further inventions 73
8. Productivity advance: A Case of supply and demand? 87
9. The amount of invention is governed by the extent of the market – the evidence of time series 104
10. The amount of invention is governed by the extent of the market – the evidence of cross sections 137
11. The sources of invention and the changing state of knowledge 165
12. The role of demand in consumer goods invention 179
13. On the "Inevitability" of individual inventions 189
14. Summary and Conclusions 196
15. Appendix A: Statistical Appendix 217
16. Appendix B: Inventors Past and Present 256
17. Appendix C: Important inventions in the Railroad Industry 269
18. Appendix D. important mechanical inventions in agriculture 282
19. Appendix E: Important inventions in the petroleum industry 294
20. Appendix F: Important inventions in the paper industry 317
21. Index 329