Why we have them?: To protect domestic industries from foreign competition.

Effects: One of the consequences would be higher consumer prices

What would happen if they were removed: Lower consumer prices, then they would have increased purchasing power.

Why we have them?: For the protection of domestic industries.

Consequences of them: Higher prices for consumers

If they were removed:They would have an increased competition

Purpose: It would be diplomatic pressure, they're used as this most of the time to expert their target issue on a different state

Effects: Economic impact, it can have this on both of the countries or places for that matter

Removing trade barriers: Same thing as the others, increased trade.