Final answer:
GDP has fallen while output per worker has increased in an imaginary economy.
Step-by-step explanation:
GDP falls from $100 billion to $95 billion while output per worker rises from $5000 to $5020.
To determine what has happened in the economy, we need to analyze the changes in GDP and output per worker.
- The decrease in the GDP from $100 billion to $95 billion indicates a decline in the total value of goods and services produced in the economy.
- The increase in output per worker from $5000 to $5020 means that each worker is producing slightly more than before.
Therefore, in this imaginary economy, there has been a decline in overall production (GDP) but a slight increase in individual worker productivity.