Question 1

How does the production function in the neoclassical growth model incorporate technology?

Accepted Answer

The production function is Y = A · F(K, L), where A represents technology, K is capital, and L is labor. As A improves, the same amount of capital and labor generates more output. This technology term is the key to sustained growth beyond the steady state, allowing economies to produce more efficiently without requiring additional resources.

Question 2

Why does technological progress allow an economy to escape the steady state?

Accepted Answer

Once capital per worker stops increasing, technological advancement becomes the only driver of continued growth. As technology improves, output per worker rises even if capital remains unchanged. This shift in the production function enables the economy to move beyond stagnation, generating continuous gains in output, wages, and living standards without requiring more machines or workers.

Question 3

What real-world example demonstrates how technology increases productivity without adding capital?

Accepted Answer

At Agro Farm, automated planters and greenhouse sensors improved the quality of existing machines, enabling workers to produce more without increasing capital investment. Similarly, a packaging warehouse installed a barcode system that reduced search time, processing more orders daily with the same workforce and equipment. These examples show how better processes and tools boost output per worker.

Question 4

How does technological advancement shift the production curve in the neoclassical model?

Accepted Answer

When technology advances, the production curve shifts upward from APF₁ to APF₂. At the same capital per worker level, the economy moves from point E₁ to point E₂, producing more output. This upward shift means that even without increasing capital per worker, output per worker rises, demonstrating how innovation drives growth independent of capital accumulation.

Question 5

What happens to wages and living standards when technology improves?

Accepted Answer

As technology advances and output per worker increases, real wages and living standards rise correspondingly. Workers become more productive because they use more efficient tools and advanced processes. This combination of capital deepening with better technology creates sustained improvements in worker compensation and quality of life, pushing the economy beyond earlier growth limits.

Question 6

Why is continuous technological improvement essential for long-term economic growth?

Accepted Answer

Without regular technological advances, growth would slow and eventually stop once capital per worker reaches its steady state. Technological progress is the only mechanism that allows output and wages to continue rising indefinitely. It enables economies to overcome resource constraints and move past earlier productivity limits, making innovation the foundation of sustained prosperity.

Question 7

How does the neoclassical model distinguish between growth from capital investment and growth from technology?

Accepted Answer

Capital investment increases capital per worker, raising output temporarily until reaching steady state. Technological advancement, however, shifts the entire production function upward, enabling output growth even when capital per worker remains constant. The model shows that while capital deepening has limits, technological progress provides a permanent pathway to sustained economic expansion.

新古典增长模型：技术进步