20. Company replaces workers with robots—this illustrates investment in:

Answer: B

Explanation:

Investment in Physical Capital

The decision to replace workers with robots exemplifies an investment in physical capital, as it involves acquiring machinery and technology to enhance production efficiency and capabilities.

A) Human capital

Human capital refers to the skills, knowledge, and experience possessed by individuals. While investing in human capital is crucial for a company's growth, the replacement of workers with robots signifies a shift away from human labor rather than investment in human skills or education.

B) Physical capital

Physical capital encompasses tangible assets such as machinery, buildings, and equipment used in production. The replacement of workers with robots is a clear example of increasing physical capital, as the company invests in robotic technology to improve operational efficiency.

C) Financial assets

Financial assets include stocks, bonds, and cash equivalents that provide returns over time. The scenario described does not involve the acquisition or management of financial assets but rather focuses on the tangible investments in machinery and technology.

D) R&D

Research and Development (R&D) involves the creation of new products or processes through innovation and experimentation. While the introduction of robots may stem from R&D efforts, the act of replacing workers directly relates to physical capital investment rather than ongoing research activities.

Conclusion

The choice of replacing workers with robots is a definitive indicator of an investment in physical capital, as it involves acquiring advanced machinery to improve productivity. Other options, such as human capital and financial assets, do not apply in this context, as the main focus is on enhancing the company's operational capabilities through tangible assets.