Bibliography (13):

1. ‘Automation’ of Manufacturing in the Late 19^th Century: The Hand and Machine Labor Study

2. The Skill Content of Recent Technological Change: An Empirical Exploration

3. Technical Change, Inequality, and the Labor Market

4. The Economics of Has-beens

5. The Death of a Technical Skill

6. Technological change and obsolete skills: Evidence from men’s professional tennis

7. ‘What’s Wrong With The Way I Talk?’ The Effect Of Sound Motion Pictures On Actor Careers

8. Automation As Colonization Wave (OB)

9. Is an Army of Robots Marching on Chinese Jobs?

10. Wikipedia Bibliography:

    1. https://en.wikipedia.org/wiki/Switchboard_operator

       https://en.wikipedia.org/wiki/Switchboard_operator

    2. AT&T

    3. https://en.wikipedia.org/wiki/Telephone_exchange#Early_automatic_exchanges

       https://en.wikipedia.org/wiki/Telephone_exchange#Early_automatic_exchanges

    4. Complementary good