How do human capital and physical capital contribute to prosperity?

• A. Human capital refers to ideas and technology; physical capital to land; both determine output.
• B. Human capital is people’s knowledge and skills; physical capital are tools, machines, and buildings; both increase productivity.
• C. Human capital is only education; physical capital is only equipment; only physical capital increases productivity.
• D. Human capital is money invested; physical capital are raw materials; both reduce output.

Answer: (B)

The main idea is that prosperity comes from higher productivity, which comes from both people and the tools they use. Human capital means people’s knowledge, skills, health, and abilities—things that let workers perform tasks more efficiently and innovate. Physical capital refers to the tangible inputs like machines, buildings, and infrastructure that workers use to produce goods and services. When a society educates its people, trains them, and keeps them healthy, they can work more effectively and adapt to new techniques. When there are better tools, machines, factories, and roads, workers can produce more output with the same effort. Together, these forms of capital raise the economy’s productive capacity and living standards.

Other options mix up definitions or narrow them incorrectly: ideas and technology aren’t a precise substitute for human capital and land isn’t physical capital, since physical capital is human-made inputs like machines and buildings. Limiting human capital to only education ignores health and experience, and restricting physical capital to equipment misses other man-made inputs like infrastructure. And money or raw materials don’t automatically increase productivity and don’t define what counts as capital.