Reputation in International Trade: Evidence From the Fukushima Nuclear Disaster

Summary

This paper examines how the 2011 Fukushima nuclear disaster affected Japan’s food exports to the European Union and whether reputational damage over food safety played a role. Using detailed HS6 bilateral trade data (BACI and Comtrade), prefecture-level production statistics and records of testing/export restrictions, the authors implement a dynamic difference-in-differences comparing Japan to other East Asian exporters.

Key findings: Japanese food exports to the EU plunged immediately (about 40% drop in export value in Q2 2011 relative to other East Asian countries), with depressed trade persisting for roughly four years. The fall was driven by both lower quantities and lower prices, and Japan lost many product lines on the EU market. Crucially, similar declines appear for products unlikely to have been affected by local supply damage, pointing to a demand-side reputational shock rather than purely local supply destruction or regulatory bans. Northeast Asian suppliers partly substituted for lost Japanese exports. Results are robust to multiple checks, PPML estimation, and alternative control groups.

Key Points

Immediate and large export collapse: Japan’s food export value to the EU fell by around 40% in the quarter after Fukushima versus other East Asian countries.
Both quantity and price effects: initial drop in quantity with higher prices (supply shock signs), then sustained lower quantities and lower prices consistent with reduced demand.
Extensive-margin losses: Japan lost roughly 30% of its export product portfolio to the EU in 2011, with slow recovery over several years.
Reputational channel supported: products produced outside the contaminated prefectures also saw large declines, implying perceived safety concerns among foreign consumers.
Substitution by neighbours: China, Korea, Taiwan and Hong Kong increased EU food exports after 2011, filling part of Japan’s gap.
EU response limited: the EU never imposed sweeping bans—mostly selective pre-export testing—so regulatory protectionism does not fully explain the decline.
Robustness: findings hold under PPML, alternative control groups and checks for composition and policy changes.
Policy implication: country-level reputational shocks can substantially and persistently damage export demand, even when objective contamination is low or absent.

Why should I read this?

Put simply: it shows how one big, scary headline can crater a nation’s export market for years. If you care about trade policy, brand risk for national industries, or how crises ripple through export markets — this paper saves you the time of digging through mountains of data. It gives clear evidence that consumer perceptions can matter as much as physical damage or regulations.

Author style

Punchy and evidence-led. The authors combine rich micro trade data with prefecture production and regulatory timelines to separate demand (reputation) from supply shocks. If you’re a policymaker, trade economist or exporter, the paper is essential reading: it underlines that reputational risk mitigation and transparent testing/communication strategies are as important as rebuilding physical capacity.