Question 1

What is Ricardo's law of diminishing returns in agriculture?

Accepted Answer

Ricardo's law of diminishing returns describes how output increases at a decreasing rate as farmers expand to less fertile land. As population grows, new agricultural plots require the same effort but produce smaller harvests. Each additional piece of land contributes progressively less to total food supply, slowing economic growth despite continued investment and labor.

Question 2

How does economic rent benefit landowners in Ricardo's theory?

Accepted Answer

Economic rent is the surplus income earned by owners of fixed-supply factors like fertile land. As food becomes scarcer and prices rise, landowners controlling the best land can demand higher rents. Their income grows simply because food is more valuable, allowing them to capture increasing wealth while other economic groups face pressure from rising costs.

Question 3

Why do capitalist profits decline in Ricardo's model?

Accepted Answer

Capitalists face shrinking profits as wages and rents rise together. Higher food prices force workers to demand higher wages for survival, while landowners increase rents on scarce fertile land. Even investments in tools and labor improvements cannot offset these mounting pressures, gradually eroding returns on capital and discouraging further investment.

Question 4

What is the stationary state Ricardo predicted for economies?

Accepted Answer

Ricardo believed economies would eventually reach a stationary state where investment stops, profits disappear, and growth halts. This occurs when rising wages and rents consume all available returns on capital. However, this prediction ultimately proved inaccurate due to technological advancement, which Ricardo did not fully anticipate in his analysis.

Question 5

How did Ricardo build on earlier economic thinking?

Accepted Answer

Ricardo expanded on ideas from Adam Smith and Malthus by focusing specifically on land scarcity and capital accumulation as drivers of growth. While earlier thinkers explored general economic principles, Ricardo highlighted how limited fertile land creates conflict among landowners, workers, and capitalists, revealing structural tensions that constrain long-term progress.

Question 6

What is Ricardo's most enduring contribution to economics?

Accepted Answer

Ricardo's most impactful legacy is his theory of comparative advantage in international trade, which remains foundational to modern economics. Though his predictions about stationary states proved incorrect, his framework for analyzing how resource scarcity shapes distribution among economic groups and his insights on trade continue to influence economic policy and theory.

Question 7

How does population growth trigger economic conflict in Ricardo's theory?

Accepted Answer

As population increases, demand for food rises and farmers must cultivate less fertile land. This drives up food prices, benefiting landowners but harming workers and capitalists. Workers need higher wages to afford food, while capitalists face eroding profits from wage and rent pressures, creating distributional conflict over limited resources and growth opportunities.

Ricardo 的经典经济学

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