4. What source of economic growth is reflected in the economy by an increase in productivity without an increase in land, labor, or capital?
A. technological progress
B. foreign trade
C. population growth
D. savings and investments
A. Technological Progress
The source of economic growth reflected in the economy by an increase in productivity without an increase in land, labor, or capital is technological progress. Technological progress refers to the development and adoption of new technologies, systems, and methods that enhance productivity and efficiency.
To determine the correct answer, we need to consider each option and identify which one represents an increase in productivity without an increase in land, labor, or capital.
A. Technological progress: This option is a strong possibility as it directly relates to an increase in productivity through advancements in technology.
B. Foreign trade: Foreign trade involves the exchange of goods and services between different countries. While it can contribute to economic growth, it typically requires resources like capital and labor to produce goods for export or expand production capacity. Therefore, it involves an increase in capital or labor and is not the best answer in this scenario.
C. Population growth: Population growth typically implies an increase in the labor force, which requires additional capital and resources to sustain. It does not reflect an increase in productivity without an increase in land, labor, or capital. Hence, it is not the correct answer.
D. Savings and investments: Savings and investments are vital for economic growth, but they usually involve the allocation of capital to productive activities, which is not consistent with the given scenario. Therefore, it is not the correct answer.
By analyzing the options and considering the specific conditions mentioned in the question, we can conclude that the correct answer is A. technological progress.