Protectionism, an economic policy that limits trade through tariffs, quotas, and regulations, has generated ongoing debate. Supporters such as Elpidio Quirino view it as a strategy to strengthen domestic industries and promote self-sufficiency, while critics like William Graham Sumner reject it as economically unsound and at odds with reason.
Ronald Reagan noted its revival in legislative efforts, emphasizing its capacity to divide. Although economists generally concur that it impedes growth and well-being, its advocates continue to defend it, claiming it safeguards emerging sectors from international competition, even as evidence suggests its effects are often mixed and largely harmful in the long run.