While memory chip stocks are driving massive profit growth in the Korean market, there is still over 40% earnings growth in the rest of the market, excluding semis. This non-chip growth is fueled by strong global themes in shipbuilding, power equipment, defense spending, and the popularity of "K-culture."

The initial market rally was fueled by highly-leveraged domestic retail investors. With tighter leverage rules, future growth now depends on attracting foreign institutional capital, hinging on corporate governance and capital management reforms.

Despite official statements against rapid currency depreciation in Japan and Korea, policymakers likely view a weaker currency as a beneficial stimulus. With negative output gaps and competition from China, the goal is not to reverse the trend but to manage its pace to avoid market disorder and US Treasury scrutiny.

North Asian economies, despite current account surpluses, exhibit balance-of-payments dynamics typical of deficit countries. This is caused by exporters holding dollars, domestic capital outflows, and foreigners hedging equity investments. This structural imbalance acts as a powerful headwind for regional currencies, overriding positive trade data.

While both Korea and Taiwan benefit from the AI boom, Korean large-caps have seen more explosive earnings growth. This is due to a key strategic difference: Korean memory makers have leveraged supply shortages to significantly increase prices, leading to earnings estimates multiplying 5-6x. In contrast, Taiwanese firms have shown more pricing discipline.

Despite a massive positive shock from semiconductor exports, South Korea's currency (the won) has weakened. This is partly because retail investors are taking their profits and buying US tech stocks instead of reinvesting domestically, creating capital outflows that offset the strong current account surplus.

Contrary to economic fundamentals, East Asian currencies are weak. This paradox is driven by complex financial flows, including foreign investors hitting concentration limits in booming stock markets and pension fund outflows, which are currently overriding strong trade balances.

The memory of events like the 1997 Asian financial crisis instills a deep-seated fear of running deficits. This trauma drives countries like South Korea and China to prioritize export surpluses for stability, even if it creates global imbalances and is suboptimal for the world economy.

The common assumption that a trade deficit must cause currency depreciation is flawed. A collapse in a country's domestic demand can also correct the imbalance by reducing imports. This explains the weak correlation between real exchange rates and trade balances, as both relative prices and demand levels are key factors.