Understanding Economic Growth Dynamics

Chapter 21: Economic Growth - Revision Sheet

1. 📌 Essentials

• Economic growth refers to the sustained increase in per capita GDP over time. Exponential growth causes disparities between rich and poor nations.
• The Solow model explains short-term convergence and long-term growth via technological progress.
• Key determinants: capital stock (K), effective labor (H), and technology (A).
• Diminishing returns limit growth from capital and labor alone.
• Technological progress is the primary driver of sustained long-term growth.
• Steady state: point where investment equals depreciation, halting growth without tech.
• Catch-up growth occurs when poorer economies grow faster by exploiting existing technology.
• Growth rate formula: (Y_{t+1} - Y_t) / Y_t.
• Savings rate influences investment and capital accumulation.
• Institutions significantly affect growth prospects and inequality.

2. 🧩 Key Structures & Components