S9 Ep42: The Safety Paradox

Episode Summary

Executive Summary: The episode argues that trade is increasingly being used as a tool of geopolitical power, with export bans, tariffs, and sanctions fragmenting global commerce along geopolitical lines. Isabelle Mijon explains that while reducing dependence can protect countries from coercion, it can also backfire by weakening the trade interdependence that helps deter conflict. Her key warning is the “safety paradox”: decoupling may improve short-term bargaining power but raise the risk of war and lower global safety.

Main Topics: Trade as an instrument of power (Priority: 5/5): The discussion opens with the claim that trade policy is no longer only about efficiency; countries now use export controls, tariffs, and sanctions to pressure rivals or secure geopolitical goals. Evidence of fragmentation in trade data (Priority: 5/5): Mijon says the trend is visible empirically: trade is shifting toward more within-block commerce and less cross-block exchange, especially where sanctions or coercion are present. Economic coercion and defensive policy responses (Priority: 4/5): Examples such as China-Lithuania and EU anti-coercion policy show that governments are responding to coercion by seeking diversification, resilience, and new protective instruments. The trade-off between efficiency and security (Priority: 4/5): Reducing integration lowers vulnerability but also sacrifices gains from specialization and efficiency; economists lack precise tools to quantify the size of this trade-off. Trade interdependence and conflict prevention (Priority: 5/5): The episode revisits the classical idea that trade and other interdependencies raise the cost of conflict and encourage diplomacy, though they do not eliminate war. The safety paradox of decoupling (Priority: 5/5): Mijon’s central thesis is that derisking or decoupling can backfire: by reducing dependence on an adversary, it can also reduce diplomatic restraint and increase the likelihood of conflict. Policy implications for the US-China rivalry and critical materials (Priority: 4/5): Using a model of US-China decoupling, Mijon argues that tariffs may restore some bargaining power but can also increase war risk, implying trade policy should incorporate insurance and resilience considerations.

Key Arguments: Trade restrictions on national security grounds are not just anecdotes; they are visible in both policy data and trade-flow patterns. Several countries, including the US, China, Japan, and Europe, are now implementing restrictions that cover a large share of global exports and reflect geopolitical concerns. Countries are increasingly seeking anti-coercion tools and diversification strategies to reduce exposure to supply-chain disruption and economic pressure. Trade integration creates economic efficiency through specialization, but reducing it to protect against coercion imposes economic losses. Interdependence can reduce conflict because it raises the cost of war and strengthens diplomacy, but this relationship is not absolute. The main risk of strategic autonomy or decoupling is that it may weaken diplomatic restraint and make conflict more likely. In the model discussed, US tariffs and decoupling from China reduce the US cost of war but also push China to diversify, neutralizing bargaining gains in peacetime and increasing conflict risk. Policy should treat trade agreements not only as market-access tools but also as insurance mechanisms that diversify critical supply risks. Critical materials such as rare earths illustrate how trade diversification can serve as insurance against monopoly power and coercion. Economists need better quantitative tools to evaluate the balance between economic efficiency, resilience, diplomacy, and war risk.

Data Points: Share of global exports affected by restrictions: Maybe half or even more - Mijon says export restrictions on geopolitical or national security grounds now cover roughly half or more of some countries’ global exports. Tariff increase in the model: 20 percentage points - The model simulates a tariff increase similar to Trump-era policy changes. Estimated change in war probability: +2% - In the model, a 20-point tariff increase raises the probability of war with China by 2%. Period of US policy shift: Starting in 2018 - Mijon describes the US as beginning unilateral decoupling from China in this period. German support for EU diversification: Germany now supporting France - She cites intra-EU support for new instruments to reduce trade vulnerabilities. Historical example: US oil export ban on Japan during World War II - Used as an example of the safety paradox, where trade restriction may have accelerated Japan’s entry into war. Rare earths concentration: Almost a monopoly - China is described as having near-monopoly power in rare earth mining, refining, and magnet production.

Pivotal Quotes: "“Trade is a source of insurance, and so decoupling or reducing trade integration is likely to be a source of more conflict.”" — Isabelle Mijon: Core statement of the safety paradox and the episode’s central warning. "“Increasing tariffs by 20% points ... is increasing the probability of a war happening by 2%.”" — Isabelle Mijon: Result from the US-China decoupling model quantifying the conflict risk of tariffs. "“It might backfire.”" — Isabelle Mijon: She uses this to describe how strategic autonomy can improve resilience but weaken diplomacy and raise conflict risk.

Implications: Listeners should expect trade policy to become more about resilience, coercion, and security than pure efficiency. The big lesson: derisking is necessary, but poorly designed decoupling can reduce safety and increase conflict risk.