A beggar-my-neighbour policy refers to an economic strategy that is designed to improve one country's economic situation at the expense of other countries. It is often viewed as a short-sighted and selfish approach that leads to increased economic tensions and conflicts between nations. There are several synonymous terms that describe this economic policy, including "economic warfare," "competitive devaluation," and "trade aggression." Other related terms include "mercantilism," which refers to a belief in a country's economic independence through the accumulation of gold and silver reserves, and "protectionism," which refers to policies that protect domestic industries from foreign competition through tariffs and other trade barriers. In general, these policies are seen as harmful to the global economy and can lead to unequal outcomes for different nations.