🎮 Trade Quest: Marshal-Lerner

Can you rescue the trade balance?

A game-style app for 17-year-olds. Pick a mission, move the sliders, and beat the Price Boss by making the quantity effect strong enough.

🦸‍♂️

Mission: beat the Price Boss

Make PEDx + PEDm greater than 1. Then depreciation can improve the balance of trade.

LevelRookie
1

Price changes

Depreciation makes exports cheaper and imports dearer.

2

Quantity responds

Foreigners buy more exports; locals buy fewer imports.

3

BOT changes

The trade balance improves only if PEDx + PEDm > 1.

PEDx
1.20
export demand
PEDm
0.73
import demand
PEDx + PEDm
1.93
must be above 1
BOT change
+5.6
improves

Exports

Singapore sells to overseas buyers
📦
Foreign price100 → 90
Quantity sold100 → 112
Export revenue100.0

Imports

Singapore buys from overseas sellers
🛒
Domestic price100 → 111.1
Quantity bought100 → 92
Import expenditure102.2

Conclusion

30-second boss quiz

If PEDx + PEDm is above 1 after depreciation, what happens to BOT?

How to write this in an essay

Key exam wording

    ComponentBeforeAfterEffect