Korean economy and the macroeconomic implications of the technology boom Report Interpretation

Overview

The report examines how Korea's AI-related technology boom is transmitting through exports, business investment, household demand, inflation, monetary policy, fiscal revenue and the external balance. J.P. Morgan concludes that Korea has entered a strong but highly uneven upturn: technology exports and capital expenditure lead the expansion, while consumption recovers more gradually and construction remains a drag.

Core views

J.P. Morgan sees late 2024 through 2025 as the low point of Korea's cycle following monetary tightening. It forecasts real GDP growth rising from 1.1% in 2025 to 3.8% in 2026 and 3.3% in 2027. Even 2Q26, described as the cycle's weakest quarter, recorded 2.5% seasonally adjusted annualized growth and exceeded both consensus and J.P. Morgan's above-consensus forecast. The report expects faster growth in 3Q26 as exports and facility investment regain momentum. It also raises estimated potential growth from below 2% to approximately 2.2%-2.3%, or about 50 basis points above the prior path, but still expects the output gap to turn positive in 2H26 and widen through 2027. The growth composition remains divergent. Net trade is forecast to contribute 1.8 percentage points to 2026 growth, while consumption and investment contribute 1.5 and 0.5 points, respectively. In 2027, consumption and investment contributions rise to 2.1 and 1.2 points, while net trade's contribution falls to zero. Consumption expenditure and equipment investment should therefore take over more of the expansion over time, but construction is expected to contract further in 2026. Construction starts remain nearly half below their peak, so the report judges downside risks to construction investment to be greater than the upside. Household consumption is improving with income rather than experiencing the large wealth-driven surge indicated by J.P. Morgan's income-and-wealth model. Near-term private-consumption growth is expected to run at a mid-2% annualized pace and strengthen gradually. Durable-goods demand is recovering from the effects of higher interest rates, while services and nondurables remain broadly stable. Luxury spending has already risen strongly, but consumer-staples demand is trending down, producing a K-shaped pattern. The aggregate equity wealth effect is limited because equities represented only 9% of household assets after the 2025 rally, up from 7%, while real estate still dominates household balance sheets. Equity holdings are also concentrated among wealthier households with a lower propensity to consume. Employment and base-pay growth are moderating, although low unemployment and possible bonus payments create upside risk to income and consumption. Exports are the main cyclical engine. Based on 1H26 momentum, the report forecasts real exports growing by approximately 11% in 2026, followed by some moderation but continued outperformance relative to global growth. Technology-export volumes surged in early 2026, while non-technology volumes recovered more strongly than expected and may sustain low-single-digit growth despite petrochemical disruption from crude-import problems. Real imports should rise with equipment investment and intermediate-goods demand, but the technology upswing and better terms of trade should keep net exports strongly supportive. The semiconductor cycle differs from earlier expansions because explosive AI-related demand is raising both quantities and prices, rather than additional supply quickly depressing prices. Korea's AI-related semiconductor and computer exports have lagged Taiwan since 2023, partly because Korea has a larger legacy-product share, but the report sees substantial catch-up potential over the next several quarters. The upswing retains a cyclical price component, yet persistent AI demand, supply bottlenecks and large investment plans may place the sector around a higher nominal equilibrium. Better terms of trade should support domestic equipment investment, although increased overseas investment means Korean capital expenditure may not rise as much as the terms-of-trade improvement alone would imply. The report also links the AI cycle to supply-chain restructuring. As production shifts toward developed-market final demand, higher labor and input costs encourage greater automation and AI adoption in manufacturing. Korea's trade surplus with the United States is concentrated in intermediate and capital goods and increased structurally after the free-trade agreement alongside Korean foreign direct investment in North America. J.P. Morgan therefore expects technology-sector investment in the United States to support Korea's external balance rather than simply divert activity abroad. Inflation combines temporary supply effects with firmer underlying pressure. Fuel and food disinflation allowed July headline CPI to undershoot, while core inflation stayed firm because of services and selected goods, including technology-related durables. Wholesale fuel-price caps distribute the oil shock among refiners through narrower margins, consumers through price increases and the government through subsidies, limiting the chance of a repeat of the 2022-23 retail-fuel surge. J.P. Morgan expects year-on-year inflation to reach the mid-3% range in August because of base effects, then ease toward the high-2% range by 1Q27. Core inflation may undershoot what a positive output gap would normally imply because labor-market tightness is easing, but delayed income and demand effects from the technology windfall should keep it firmer than a simple disinflation narrative suggests. Monetary policy has consequently shifted from easing toward normalization. A simple Taylor-rule comparison, financial conditions, the projected positive output gap and core inflation point toward a faster change in stance, although the report stresses that Bank of Korea policy is not mechanically determined by that rule. J.P. Morgan targets a 3.75% terminal policy rate by 2Q27 and sees upside risk if the AI boom raises potential growth and the neutral rate. Counterbalancing that risk, uneven growth and moderating labor pressure could keep inflation below the level implied by headline GDP. Financial-stability evidence is also mixed: financial conditions have eased since 2023, stock prices have risen sharply, nationwide real house prices remain closer to tightening-to-neutral, and recent regulation has moderated housing-price gains in major Gangnam districts. The technology boom is becoming a fiscal-revenue windfall. Corporate income taxes from major memory producers are expected to lift total revenue from 22.6% of GDP in 2025 to 24.6% in 2026 and 27.6% in 2027. Under an unchanged framework, a separate status-quo calculation moves the fiscal balance from a 1.7%-of-GDP deficit in 2025 to surpluses of 1.3% in 2026 and 3.9% in 2027; the main forecast table instead reports balances of -1.8%, 1.2% and 0.0%, respectively. Rather than allowing either procyclical spending or rapid debt reduction, the report views separation of excess revenue—potentially through a sovereign-wealth-fund-type structure—as more plausible. Excess windfall could be defined as realized revenue above structural revenue, preserving room for productive investment and redistribution. Off-budget use of accumulated savings could add further upside to government spending's growth contribution. Korea's external surplus is projected to reach historically unusual levels. The main forecast puts the current account at US$399.7 billion, or 19.7% of GDP, in 2026, before moderating to US$307.3 billion, or 14.7%, in 2027. The technology-led merchandise surplus and terms-of-trade gains more than offset the oil shock, increasing private net saving and Korea's net foreign assets; government saving should also turn positive from 2027. Currency implications are less direct because continued outward FDI, equity investment and institutional overseas bond allocation recycle much of the surplus abroad. The report's adjusted basic balance falls from 1.0% of GDP in 2024 to approximately -1.3% in 2025, then improves to around 4% in 2026, implying a stable real effective exchange rate rather than appreciation proportional to the headline surplus. Demographic support for net saving may be near its peak, but IMF EBA-based estimates indicate that demographic transition is unlikely to dominate the current account within the next ten years.

Analysis framework

The report begins with expenditure-side GDP forecasts and recent 2Q26 momentum, then decomposes the outlook into consumption, investment, construction and net exports. It uses household income and wealth relationships, labor indicators, export price-and-volume data and cross-country technology comparisons to assess transmission from the AI cycle. It then connects the output gap and inflation to a simple Taylor-rule benchmark and financial conditions, models alternative treatment of fiscal windfall revenue, and compares the current account with an adjusted basic balance to assess currency pressure after capital outflows.

Methodology notes

• Macroeconomics

  Expenditure-side GDP contribution decomposition

  The report separates growth into consumption, investment and net-trade contributions to show that exports lead the 2026 acceleration while domestic demand becomes more important in 2027.

• Macroeconomics

  Income-and-wealth consumption model

  J.P. Morgan compares observed consumption with a model incorporating household income and wealth effects. Actual spending has not delivered the model's predicted surge, so the baseline follows disposable-income growth while retaining upside risk.

• Industry AnalysisSupply-demand framework

  Semiconductor price-and-volume supply-demand analysis

  The report distinguishes export quantities from prices and argues that unusually strong AI demand and supply bottlenecks are allowing both to rise simultaneously.

• MacroeconomicsTaylor rule

  Simple Taylor-rule policy benchmark

  A rule using the output gap and core inflation's deviation from 2%, alongside financial conditions, is used as a reference for the pace of monetary normalization rather than as a mechanical Bank of Korea forecast.

• Macroeconomics

  Adjusted basic balance

  The report subtracts net FDI outflows, net equity outflows and National Pension Service overseas bond investment from the current-account surplus to estimate the external balance's longer-term pressure on the real effective exchange rate.

• Macroeconomics

  IMF EBA-based demographic current-account model

  The report uses demographic contributions based on the IMF's External Balance Assessment framework to judge whether aging will materially reverse Korea's saving surplus over the next decade.

Key data

• Real GDP growth2019-23: 2.1%; 2024: 2.2%; 2025: 1.1%; 2026f: 3.8%; 2027f: 3.3%Annual percentage change; the technology cycle drives the forecast acceleration.
• 2Q26 real GDP growth2.5% saaThe reported cycle-low quarter still exceeded consensus and J.P. Morgan's forecast.
• Potential growth estimateApproximately 2.2%-2.3%Revised from below 2%, also described as an increase of around 50 basis points.
• Growth contributionsConsumption: 1.5ppt in 2026f and 2.1ppt in 2027f; investment: 0.5ppt and 1.2ppt; net trade: 1.8ppt and 0.0pptContribution to real GDP growth.
• 2024-25 growth contributionsConsumption: 1.0ppt in 2024 and 1.2ppt in 2025; investment: -0.5ppt and -0.7ppt; net trade: 1.6ppt and 0.6pptShows the prior domestic-demand drag and dependence on trade.
• Real export growthApproximately 11% in 2026Low-double-digit forecast based on 1H26 momentum.
• Private-consumption paceMid-2% annualized near termExpected to recover with household income rather than through a large aggregate wealth effect.
• Household equity share9% in 2025, up from 7%Share of household assets; the limited increase helps explain the modest wealth effect.
• Construction startsNearly half below their peakThe report sees construction-investment downside risks outweighing upside.
• Consumer-price forecast2019-23: 2.4%; 2024: 2.3%; 2025: 2.1%; 2026f: 3.0%; 2027f: 2.3%Annual average year-on-year inflation.
• Consumer prices, December/December2019-23: 2.6%; 2024: 1.9%; 2025: 2.3%; 2026f: 3.4%; 2027f: 1.4%Year-end inflation comparison from the forecast table.
• Near-term inflation pathMid-3% range in August; high-2% range by 1Q27Expected year-on-year path, initially lifted by base effects.
• Producer-price forecast2019-23: 3.1%; 2024: 1.7%; 2025: 1.1%; 2026f: 5.7%; 2027f: 1.0%Annual average year-on-year change.
• Terminal policy rate3.75% by 2Q27J.P. Morgan's target, with residual upside risk.
• Fiscal revenue22.6% of GDP in 2025; 24.6% in 2026; 27.6% in 2027Corporate-income-tax receipts from major memory producers drive the increase.
• Government balance, main forecast table2019-23: -2.0% of GDP; 2024: -1.7%; 2025: -1.8%; 2026f: 1.2%; 2027f: 0.0%Baseline forecast-table series.
• Fiscal balance under unchanged windfall treatment-1.7% of GDP in 2025; +1.3% in 2026; +3.9% in 2027Separate status-quo scenario illustrating the windfall's mechanical fiscal effect.
• Current-account balance2019-23: US$55.2bn; 2024: US$100.0bn; 2025: US$129.0bn; 2026f: US$399.7bn; 2027f: US$307.3bnThe 2026 surge is led by the technology merchandise surplus.
• Current-account balance as a share of GDP2019-23: 3.0%; 2024: 5.3%; 2025: 6.9%; 2026f: 19.7%; 2027f: 14.7%The report describes the projected level as historically unusual.
• Adjusted basic balance1.0% of GDP in 2024; approximately -1.3% in 2025; around 4% in 2026Current account after major outward FDI, equity and institutional bond flows.

Impact & implications

The report argues that the AI cycle is broadening from exports into profits, capital expenditure, income, tax receipts and eventually consumption. This supports above-potential growth and a higher estimated potential-growth path, but it also reduces the case for monetary easing and creates upside risk to the terminal rate. Fiscal and external surpluses could become exceptionally large, although the macroeconomic effect depends on how the government handles windfall revenue and how much private saving continues to be recycled into overseas assets. The result is stronger economic buffers without a proportional near-term rise in household demand or the real effective exchange rate.

Risks

• Construction investment has more downside than upside because starts remain nearly half below their peak.
• Middle East conflict and oil-related disruptions may weigh on petrochemical exports and create supply-driven inflation pressure.
• Core inflation, bonus income and delayed demand spillovers could prove firmer than the baseline.
• The terminal policy rate could exceed 3.75% if potential growth and the neutral rate are reassessed upward.
• Off-budget use of fiscal windfall savings could add more government stimulus than assumed.

What to watch

• Whether real exports and facility investment resume their strong upturn in 3Q26.
• Whether Korea's AI-related semiconductor and computer exports begin catching up with Taiwan over the next several quarters.
• Whether consumption continues to track disposable income or moves toward the stronger wealth-model signal.
• The expected rise in inflation to the mid-3% range in August and easing toward the high-2% range by 1Q27.
• The Bank of Korea's normalization pace and evidence that the neutral or terminal rate is moving higher.
• How the government defines, separates and deploys excess technology-sector tax revenue.
• The gap between the headline current account and adjusted basic balance as capital outflows continue.