Fill in the blank.
Trivia
100

voluntary trade occurs when different countries choose to engage in the (blank) with one another

Exchange of goods

100

Can voluntary trade increase wealth?

Yes

200
Countries trade goods because no country has (blank) to produce every single thing it's citizens need.

all the resources necessary 

300

Voluntary trade is good because it lets a country (blank) and buy the resources it needs.

Sell it's own resources.

400

Because countries cannot produce all of the goods/service that it needs, they must specialize (blank) 

In what they do best.

500

Voluntary trade is....

both partners agree to trade freely