Trade restrictions are rules that make it harder or more expensive to buy or sell goods and services between countries. Think of them as roadblocks on the highway that connects two cities.
When a country imposes a tariff, the price of imported goods rises. This can protect domestic producers because their products become relatively cheaper.
Over time, higher prices can lead to lower overall consumption and reduced economic growth.
Mathematically, if the price elasticity of demand is –2, a 10% tariff increase can reduce quantity demanded by 20%:
ΔQ/Q = ε × ΔP/P = (–2) × 0.10 = –0.20
Trade partners may face higher costs for the restricted goods, leading to:
Countries often retaliate with their own restrictions, creating a trade war that can hurt both sides.
Example: The 2018 US–China tariff dispute saw both sides impose tariffs on thousands of goods, affecting global supply chains.
In 2018, the EU imposed a 10% tariff on US soft drinks. The US responded with a 25% tariff on EU dairy products.
| Good | Tariff | Impact |
|---|---|---|
| US Soft Drinks → EU | 10% | ↓ EU sales, ↑ US prices |
| EU Dairy → US | 25% | ↓ US dairy imports, ↑ US dairy prices |
Result: Both sides lost revenue, and consumers paid higher prices.
Key Points to Remember:
Tip: When answering, start with a clear definition, then discuss impacts on both sides, and finish with a real‑world example.