South Korea's Export Slowdown: Was a Weak Yen the Main Culprit?

The claim that South Korea's export stagnation was primarily caused by a weak Japanese yen is an oversimplification. While yen depreciation (especially 2012–2014 under Abenomics) hurt Korean competitiveness in overlapping sectors (autos, electronics, machinery), multiple structural and cyclical forces were at play.

Key Factors Behind Korea's Export Deceleration

1. Global Demand Slump: Post-2008 crisis, Eurozone recession, and China's rebalancing reduced appetite for Korean intermediate goods.
2. Won Appreciation: The Korean won strengthened against the dollar and yen (2010–2014), eroding price competitiveness more broadly than the yen's decline alone.
3. Rising Labor Costs: Wages grew faster than productivity, squeezing margins vs. Vietnam, China, Mexico.
4. Supply Chain Diversification: Multinationals shifted production to ASEAN (Vietnam, Thailand) and Mexico (nearshoring), reducing Korea's assembly role.
5. China's Ascendance: China moved up the value chain, competing directly in smartphones, displays, shipbuilding, and semiconductors.
6. Sector Maturity: Memory chips, LCDs, ships entered cyclical downturns; new growth engines (bio, AI, EVs) not yet at scale.

The Yen's Role

A weak yen amplified Korea's challenges in third markets (e.g., U.S., EU) where Japanese and Korean goods compete head-to-head. But it was a contributing factor, not the root cause. Korea's own currency strength, cost structure, and the global tech cycle were more decisive.

Policy Response

Korea pursued FTA expansion (52 agreements), innovation subsidies (K-New Deal), and currency intervention (sterilized) to offset. Results mixed; export growth revived only with 2017–18 semiconductor supercycle and 2020–21 pandemic digital demand surge.

Attributing the slowdown mainly to the yen ignores the multidimensional restructuring of East Asian trade.