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  • Overview of Technological Change

    • Introduction of mechanical production equipment marked the First Industrial Revolution.
    • Technological revolutions:
    • First Revolution: Mechanical production using water and steam power.
    • Second Revolution: Mass production through division of labor with electrical energy.
    • Third Revolution: Electronics and information technology automate production.
    • Fourth Revolution: Cyber-physical systems integration in production.

  • Skill-Biased Technological Change (SBTC)

    • Earnings differentials between high school and college graduates increased by 10 percentage points in the 1980s (Berman, Bound, Griliches, 1994).
    • Caused by:
    • Technological advancements.
    • Outsourcing of labor-intensive tasks.
    • Methods: Data from Annual Survey of Manufactures (ASM) determines production vs non-production worker wages.
    • Trends show a shift in the demand for skilled labor across industries, driven by technological investments and research and development.

  • Routine-Biased Technological Change (RBTC)

    • Income inequality is mainly between high and mid-skilled workers, with low-skilled workers experiencing less change (Autor, Katz, Kearney, 2008).
    • RBTC creates income polarization, where highly educated workers benefit and moderately educated workers are displaced.
    • Analyzed using U.S. CPS data, showing rapid changes in overall wage inequality since 1963.

  • Job Polarization

    • RBTC and offshoring reduce employment in routine jobs, while high-skill and low-skill jobs expand (Goos, Manning, Salomons, 2014).
    • Findings indicate a decline in routine jobs due to automation, with offshoring having limited impact.

  • Impact on Skills Needed

    • Skill requirements evolving with rising demand for synthesis, critical thinking, and analytical skills over technical and creative skills (Liu & Grusky, 2013).
    • Data from U.S. CPS and O*Net underline changing wage returns to various skill types from 1979-2010.

  • Role of Institutions

    • Institutions can mitigate the effects of technological change.
    • Comparison of labor trends across Spain, Germany, Switzerland, and the UK shows differences in occupational expansions and declines based on institutional supports.

  • Wage Inequality

    • Lower wage inequality in continental Europe than in the U.S./UK due to robust labor market protections and institutions (Koeniger et al., 2007).
    • Factors like employment protection, benefit replacement rates, and minimum wage laws significantly influence wage distribution.

  • Gender Wage Gap

    • Computerization can impact gender wage dynamics.
    • Findings show women earn premiums from computer use, with lower-wage women benefiting more than men (Brynyn 2005).

  • Political Implications

    • Employment polarization potentially fuels political polarization.
    • Vulnerable routine workers may turn to populism in response to economic insecurity (Kurer & Palier, 2019).
    • Technological change is reshaping politics through growing grievances of lower middle-class workers.

  • Conclusion

    • Technological change drives income inequality.
    • The extent of SBTC vs RBTC influences these outcomes.
    • Educational and institutional factors play crucial roles in mitigating technological impacts on labor markets.