Economics
Trade Policy Uncertainty and Exporters' Investment Decisions
Quick fact
Economists estimate that during the US-China trade war, elevated trade policy uncertainty alone reduced US investment by 1–2 percentage points, independent of any tariffs actually imposed.
Why this is interesting
Imagine you're an exporter who has just learned that tariffs might rise next year—or might not. Would you invest in a new factory abroad today, or wait? The answer reveals a hidden cost of uncertainty that can be larger than any actual tariff.
Read the full explanation
Understanding Trade Policy Uncertainty and Exporters' Investment Decisions
When a firm exports, it often must make investments that can't be easily undone—building distribution networks, customizing products, or setting up foreign subsidiaries. These are called 'sunk costs.' If trade policy is uncertain—say, tariffs might increase or a trade agreement might collapse—the firm faces a dilemma. Investing now locks in costs that could become unprofitable if policy turns adverse. The firm might choose to delay investment until the uncertainty resolves. This 'wait-and-see' behavior is rational because waiting preserves flexibility.
A deeper explanation
The mechanism rests on the irreversibility of investments and the option value of waiting. An exporting firm's decision to invest is like a real option: investing now is exercising the option, which forgoes the possibility of waiting for better information. When trade policy is uncertain, the value of waiting increases, so firms delay or forgo planned investments. This effect compounds: lower investment today reduces future export capacity and market presence, potentially permanently. Thus, trade policy uncertainty can depress exports more than a known, stable tariff would, because known costs can be planned around, while uncertainty creates a general paralysis. This explains why policymakers and markets often focus on the predictability of trade policy, not just its level.