EY's Chief Economist on the 3 'A-Pillars' Propping Up the US Economy

The Three 'A-Pillars' of the Economy

• 💡 The US economy is currently supported by three interconnected 'A-pillars': affluent consumers, artificial intelligence-fueled investment, and asset price gains.
• 🎯 This narrow foundation is experiencing a virtuous cycle, but carries downside risks if any pillar falters.

AI's Role in Economic Investment

• 🚀 Artificial intelligence is a significant driver, contributing about a third of GDP growth in the first half of the year through investment in semiconductors, software, and R&D.
• 📈 Optimism around AI has fueled stock market valuations and a wealth effect, indirectly supporting spending by affluent consumers.

Consumer Sentiment and Spending

• ⚠️ Despite economic support from AI and asset gains, US consumer sentiment has fallen due to anxieties about the high cost of living and job security.
• 💰 Affluent consumers, who are more invested in the stock market, benefit more from asset price gains, leading to skewed consumer spending.

Shifting Economic Paradigm

• ⚙️ The economy is increasingly driven by supply-side dynamics rather than demand-side factors, influenced by trade policy, demographics, climate change, and the AI revolution.
• 📊 Supply shocks can have countercyclical effects, potentially lifting output and reducing inflation (positive shock) or reducing supply and increasing inflation (negative shock, leading to stagflation).

Viability of AI Investment

• ❓ There are questions about the viability and productivity of some AI investments, with concerns that FOMO sentiment might lead to inadequate capital allocation without clear end-uses or productivity gains.
• 🛠️ Investment in AI spans foundational infrastructure (software, cybersecurity, data centers) and corporate adoption, with a need to ensure real productivity gains.