Summary and Exam Tips for Economic Growth
Economic Growth is a subtopic of Macroeconomics, which falls under the subject Economics in the IB DP curriculum. Economic growth refers to the increase in a country's real output, measured by real GDP, over a specific period. This growth is assessed by calculating the percentage increase in real GDP, which is adjusted for inflation, making it a more accurate measure than nominal GDP. Positive growth rates in real GDP indicate economic growth, while consecutive negative rates suggest a recession.
To measure economic growth, one can calculate the growth rate using national income data. For example, a fictional country experienced growth rates of 2.9%, 7.14%, and 12% from 2016 to 2018, indicating accelerating growth. However, a 9.5% decrease in 2019 signaled an economic contraction.
Short-term economic growth can be illustrated using the AD-AS model and PPC model, showing shifts in aggregate demand and supply. Long-term growth involves shifts in the long-run aggregate supply (LRAS) and production possibilities curve (PPC).
Key drivers of economic growth include investments in physical and human capital, natural resources, and liberal trade policies. However, growth impacts living standards, the environment, and income distribution.
Exam Tips
- Understand Key Definitions: Be clear on what constitutes economic growth and how it is measured using real GDP.
- Practice Calculations: Familiarize yourself with calculating economic growth rates from national income data.
- Model Mastery: Be able to illustrate and explain short-term and long-term economic growth using the AD-AS and PPC models.
- Evaluate Impacts: Be prepared to discuss the consequences of economic growth on living standards, the environment, and income distribution.
- Link Causes and Effects: Connect the reasons for economic growth with its potential impacts, using real-world examples where possible.
