Resources required to produce 1 ton of cocoa and rice

	Cocoa	Rice
Ghana	10	13.33
South Korea	40	20

Production and consumption without trade

	Cocoa	Rice
Ghana	10	7.5
South Korea	2.5	5
Total Production	12.5	12.5

Production with specialization

Potential Solution

	Cocoa	Rice
Ghana	15	3.75
South Korea	0	10
Total Production	15	13.75

Ghana trades 4 tons of cocoa for 4 tons of South Korean rice

Try to find a more optimal trade solution for Ghana and South Korea.

Hint: look at total production and consumption without trade