Trade Effects on Consumer and Producer Surplus

The video explores how trade affects equilibrium price and quantity in markets. It compares isolated markets in two countries, A and B, and examines the changes when they open to trade. The video highlights the impact on consumer and producer surplus, identifying winners and losers in the process. Overall, trade increases total surplus, though not all parties benefit equally.

What is the term used to describe a country that operates independently without trade?

• Monopoly

• Oligopoly

• Free Market

• Autarchy

In Country A's market, what is the approximate equilibrium price when operating in isolation?

• $4

• $2

• $1

• $3

How does Country B's equilibrium price compare to Country A's when both are in isolation?

• Unpredictable

• The same

• Higher

• Lower

What happens to the demand and supply curves when Country A and Country B open trade?

• They are vertically added

• They are subtracted

• They remain unchanged

• They are horizontally added

After opening trade, what is the new equilibrium price range?

• Between $1 and $2

• Between $4 and $5

• Between $2 and $3

• Between $3 and $4

Which country becomes the main supplier after trade is opened?

• Country B

• Country A

• Neither

• Both equally

What happens to the consumer surplus in Country A after trade is opened?

• It disappears

• It increases

• It remains the same

• It decreases

Who are the winners in Country B after trade is opened?

• Neither

• Both consumers and suppliers

• Suppliers

• Consumers

What is the impact on the producer surplus in Country A after trade?

• It decreases

• It doubles

• It increases

• It remains the same

What is the overall effect of opening trade on total consumer and producer surplus?

• It decreases

• It remains the same

• It increases

• It becomes zero