Examples of beggar-my-neighbour policies include:

• Tariffs: These are taxes on imported goods, which can make them more expensive for consumers, and thus less competitive with domestic goods.
• Quotas: These are limits on the quantity of a particular good that can be imported into a country, which can help to protect domestic producers from foreign competition.
• Subsidies: These are payments or other financial support provided by the government to domestic producers, which can make their goods more competitive with foreign goods.
• Exchange rate (currency) manipulation: This involves artificially changing the value of a country's currency in order to make its exports cheaper and imports more expensive.

Beggar-my-neighbour policies are controversial, because they can lead to trade conflicts and retaliatory measures by other countries, and can ultimately harm the global economy.