Question 59

More capital, better education, and technological advances best explain long-run U.S. productivity growth.

Long-run productivity growth in the U.S. is primarily driven by increased capital investment, improvements in education, and advancements in technology. These factors collectively enhance the efficiency and output of the workforce, leading to sustained economic growth.

A) Slow pop. growth, inflation, tech

This option incorrectly emphasizes slow population growth and inflation as key factors. While technology plays a role in productivity, the combination of slow population growth and inflation does not directly contribute to long-term productivity growth in the same way that capital, education, and technological advances do.

B) Steady pop., constant ed., tariffs

This choice suggests that a steady population, constant education levels, and tariffs are essential for productivity growth. However, constant education does not promote improvement; rather, it is the enhancement of education that contributes to productivity. Additionally, tariffs can hinder economic growth by restricting trade and competition.

C) Cheap raw materials, constant ed., IP rules

While access to cheap raw materials can provide short-term advantages, it is not a sustainable driver of long-run productivity growth. Like in option B, the mention of constant education fails to acknowledge the necessity for educational advancements. Intellectual property (IP) rules may encourage innovation, but they alone do not ensure productivity growth without capital and education improvements.

D) More capital, better ed., tech advances

This option accurately identifies the critical components of long-run productivity growth. Increased capital allows for better tools and infrastructure, improved education enhances workforce skills, and technological advances drive innovation and efficiency. Together, these elements create a robust environment for sustained economic growth.

Conclusion

The correct answer, D, highlights the essential drivers of long-run U.S. productivity growth, which are more capital, better education, and technological advancements. The other options fail to address the necessary components that contribute to sustained productivity increases, focusing instead on factors that either do not promote growth or are not sustainable long-term.