An economic policy that a government implements to shield its domestic industries from foreign competition.

The economic policy that a government implements to shield its domestic industries from foreign competition is known as Protectionism. Here are the steps explaining how it works:

1. Tariffs: The government imposes taxes on imported goods. This makes foreign products more expensive, thereby discouraging imports and encouraging domestic production.

2. Import Quotas: The government sets a limit on the quantity of a certain good that can be imported during a specific period. This restricts the availability of foreign goods in the domestic market.

3. Subsidies: The government provides financial aid to domestic industries, allowing them to reduce their production costs and compete more effectively against foreign goods.

4. Currency Devaluation: The government intentionally weakens its own currency. This makes domestic goods cheaper for foreign buyers and foreign goods more expensive for domestic buyers.

5. Trade Legislation: The government enacts laws that favor domestic industries. This could include regulations that make it difficult for foreign companies to operate in the domestic market.

6. Export Incentives: The government offers incentives to domestic companies that export their goods. This helps to increase the competitiveness of domestic industries in the global market.

These measures are designed to protect domestic industries from foreign competition, but they can also lead to trade wars and global economic instability if not managed properly.