Understanding the Big Picture

Gross Domestic Product (GDP)

GDP represents the total value of goods and services produced within a country in a given period, typically a year. It’s often used as a key indicator of economic health.

There are several ways to calculate GDP: by expenditure (total spending), by production (value added at each stage of production), or by income (wages, profits, rent). The most common method is expenditure-based.

GDP = C + I + G + NX

Inflation and Deflation

Inflation refers to a sustained increase in the general price level of goods and services within an economy. This means money buys less over time.

Deflation is the opposite – a decrease in the general price level. While seemingly beneficial, deflation can discourage spending and investment due to expectations of further price drops.

Inflation Rate = ((CPI - Base Year CPI) / Base Year CPI) * 100

Unemployment Rates

The unemployment rate measures the percentage of the labor force that is actively seeking employment but unable to find a job. It’s a critical indicator of economic well-being.

Different types of unemployment exist, including frictional (temporary), structural (skills mismatch), and cyclical (related to business cycles).

Unemployment Rate = (Number of Unemployed / Labor Force) * 100

Economic Growth Models

Models like the Solow-Swan model attempt to explain long-run economic growth by focusing on factors such as capital accumulation, technological progress, and population growth.

These models highlight that sustained growth requires innovation and improvements in productivity – increasing output per worker.

Frequently asked questions

Try it live

Everything above runs in your browser — open Solow Growth Model and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.