Time-Bound Industrial Policy

principle

Industrial protection works as a temporary ladder only when it contains its own exit: a fixed horizon, domestic rivalry, and gradual exposure to global competition.

South Korea’s tariffs did not shelter industry from competition indefinitely. The protection was deliberately paired with a limited lifespan, competition at home, and eventual exposure to international rivals—the apparent shield was designed to remove itself.

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A ladder with an expiry date

Temporary tariffs buy domestic firms time to develop, but time alone does not create capability. Internal competition keeps the protected market from becoming a comfortable preserve, while gradual international exposure raises the standard firms must meet. The deadline matters because it changes protection from an entitlement into a transition: producers know that the gap between domestic performance and world competition must close. This is the temporal discipline missing from a blanket argument that a tariff is simply good or bad.

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Where it shows up

South Korea’s staged exposure

The South Korean sequence joined three elements that are often separated in tariff debates: temporary shelter, rivalry among domestic firms, and a controlled return of foreign competition. Together they made protection a development phase rather than a permanent destination.

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Protection cannot be the destination

The model breaks when the time limit is not credible, domestic competition is absent, or international exposure never arrives. In those conditions, the mechanism described here is incomplete: tariffs may preserve incumbents, but the supplied case offers no reason to expect them to build globally competitive capability.

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Demand the exit schedule

When evaluating an industrial tariff, ask for three dates or milestones: when protection begins to decline, when domestic firms must compete without special treatment, and when international competition returns. If policymakers cannot specify that sequence, treat the proposal as an open-ended entitlement rather than time-bound industrial policy.

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Episodes that teach this