Gross Income is income not sales.
GDI should not match GDP.
I buy a shirt for 99 bucks. GDP measures commercial activity. Income does not.
I tend to agree
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GDP (Gross Domestic Product) and GDI (Gross Domestic Income) are two different measures of economic output in the United States. While GDP measures the total value of goods and services produced, GDI estimates the total income earned from that production. In theory, they should be equal, but in practice, there is often a discrepancy between the two measures.
The key differences between GDP and GDI are:
Measurement Approach
  • GDP measures economic output by tallying all spending by businesses, consumers, government, and overseas entities through surveys of retailers, manufacturers, etc.[1][2]
  • GDI estimates output by summing up all income earned in the form of wages, profits, interest, dividends, and rents, relying on data like unemployment insurance claims.[1][2]
Potential Advantages of GDI
  • Initial GDI estimates tend to be closer to the final estimates of both GDP and GDI, suggesting GDI may be more accurate initially.[1][3]
  • GDI may better predict recessions and economic inflection points than GDP.[1][2]
  • GDI relies more on hard data like wages, making it potentially more reliable during transitions.[1][2]
The recent large discrepancy between GDP and GDI, with GDP significantly outpacing GDI, could signal issues like uneven income distribution, falling productivity/profitability, or measurement errors.[4] Historically, such gaps have preceded recessions.[6] However, the gap may also correct itself through data revisions over time.[5]
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