Effects of tariffs on global trade and economy illustration

The Effects of Tariffs on Global Trade: Understanding the Impact

Tariffs, essentially taxes imposed on imported goods, play a significant role in shaping international trade dynamics. By influencing prices, tariffs impact not just trade volumes but also economic relationships between countries. Here’s a comprehensive exploration of how tariffs affect global trade, illustrated by detailed examples from New Zealand.

How Tariffs Influence International Trade

1. Increased Costs of Imported Goods

Tariffs raise the price of imported products, making them less attractive to consumers compared to domestic goods. Consumers often face higher prices, particularly for items that are not produced locally or where local production is insufficient. Businesses reliant on imported raw materials or intermediate goods also experience higher operational costs, impacting profitability and potentially leading to increased consumer prices.

2. Protection of Domestic Industries

Tariffs can protect domestic businesses by reducing foreign competition. Local companies benefit from reduced market pressure, enabling them to maintain market share and protect jobs. However, this reduced competition can also lead to decreased innovation, inefficiencies, and higher consumer prices in the long run.

3. Retaliation and Trade Wars

Countries affected by tariffs frequently respond with retaliatory tariffs, creating trade conflicts that can escalate into extensive trade wars. These disputes can negatively impact global trade flows, disrupt supply chains, and create uncertainty that hampers business investments and economic growth globally.

Real-World Example: New Zealand

A notable example involving New Zealand was the global ripple effect of the United States’ implementation of tariffs on steel and aluminium imports in 2018. While initially targeting major steel exporters like China, the tariffs indirectly impacted smaller economies, including New Zealand, by disrupting global pricing structures and supply chains. New Zealand manufacturers who depended heavily on imported steel and aluminium faced significant cost increases, undermining their international competitiveness.

Furthermore, New Zealand’s agricultural exporters experienced considerable challenges when faced with retaliatory tariffs from affected trade partners. For instance, heightened trade tensions between major economies sometimes created uncertainty around global commodity prices and market access, complicating trade conditions for New Zealand exporters.

New Zealand’s Strategic Response to Tariffs

Recognising the challenges posed by tariffs, New Zealand has actively pursued Free Trade Agreements (FTAs) aimed at minimising tariff barriers. Agreements like the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) and the Regional Comprehensive Economic Partnership (RCEP) reflect New Zealand’s commitment to promoting open markets and securing favourable trade conditions. These FTAs have significantly reduced tariffs, enabling New Zealand businesses greater market access and lower export costs, thus enhancing their competitive advantage.

Broader Economic Impacts of Tariffs

  • Consumer Prices: Tariffs lead directly to higher consumer prices for imported goods, affecting household budgets and living standards.
  • Production Costs: Businesses reliant on imported goods face elevated costs, potentially impacting profitability and employment levels.
  • Trade Volumes: High tariffs typically result in decreased international trade volumes, harming export-driven economies.
  • Economic Relationships: Persistent tariff impositions and retaliations strain international relations, potentially damaging long-term economic partnerships and cooperation.

The Importance of International Trade Cooperation

A stable and predictable international trade environment is crucial for global economic prosperity. Tariffs can serve as temporary protective measures, but their broader implications often result in economic inefficiencies and tensions. Countries benefit significantly from collaborative approaches to resolving trade issues, fostering dialogue, and creating multilateral agreements that promote mutual economic growth.

Tariffs significantly influence global trade, impacting prices, trade volumes, and international relationships. For trade-dependent economies like New Zealand, minimising tariff barriers and actively engaging in international trade negotiations remains essential. By promoting open trade policies and reducing protectionist barriers, New Zealand ensures sustained economic growth, enhanced competitiveness, and strong international partnerships.


The content in this blog is intended to provide general insights and should not be regarded as professional advice. Each business situation is unique, and we recommend consulting with a professional for specific guidance. At Black Arrow Business Studio, we specialise in accounting and consulting services designed to support your business’s growth and success. Feel free to contact us for expert advice and customised solutions.  


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