Traditional analysis links real GDP growth to corporate profits. However, in an inflationary period, strong nominal growth can flow directly to revenues and boost profits even if real output contracts, especially if wage growth lags. This makes nominal figures a better indicator for equity markets.
The wealth divide is exacerbated by two different types of inflation. While wages are benchmarked against CPI (consumer goods), wealth for asset-holders grows with "asset price inflation" (stocks, real estate), which compounds much faster. Young people paid in cash cannot keep up.
Contrary to popular belief, earnings growth has a very low correlation with decadal stock returns. The primary driver is the change in the valuation multiple (e.g., P/E ratio expansion or contraction). The correlation between 10-year real returns and 10-year valuation changes is a staggering 0.9, while it is tiny for earnings growth.
Keith McCullough's core process categorizes the economy into four "quads" based on the accelerating or decelerating rates of change for GDP growth and inflation. Each quad has a predictable asset allocation playbook, with Quad 2 (both accelerating) being the best and Quad 4 (both slowing) being the worst for investors.
Contrary to conventional wisdom, re-accelerating inflation can be a positive for stocks. It indicates that corporations have regained pricing power, which boosts earnings growth. This improved earnings outlook can justify a lower equity risk premium, allowing for higher stock valuations.
For 2026, AI's primary economic effect is fueling demand through massive investment in infrastructure like data centers. The widely expected productivity gains that would lower inflation (the supply-side effect) won't materialize for a few years, creating a short-term inflationary pressure from heightened business spending.
Despite official CPI averaging under 2% from 2010-2020, the actual cost of major assets like homes and stocks exploded. This disconnect shows that government inflation data fails to reflect the reality of eroding purchasing power, which is a key driver of public frustration.
Profitable companies act as a hedge against currency debasement. They issue long-term debt at low fixed rates, effectively shorting the currency. They then invest the proceeds into productive assets or their own stock, which tend to outperform inflation, benefiting shareholders.
Headline GDP figures can be misleading in an environment of high immigration and inflation. Metrics like per-capita energy consumption or the number of labor hours needed to afford goods provide a more accurate picture of individual well-being, revealing that many feel poorer despite positive official growth numbers.
Despite record market highs, the S&P 500's underlying earnings per share (EPS) have not yet recovered to their peak from early 2022. This "narrative violation" points to a hidden earnings recession for large-cap stocks, a fact that has been masked by market enthusiasm and multiple expansion.
Financial models struggle to project sustained high growth rates (>30% YoY). Analysts naturally revert to the mean, causing them to undervalue companies that defy this and maintain high growth for years, creating an opportunity for investors who spot this persistence.