In short, by focusing only on final output, GDP underestimates the money spent and economic activity generated at earlier stages in the production process. It’s as though the manufacturers and shippers and designers aren’t fully acknowledged in their contribution to overall growth or decline.
Gross Output exposes these misconceptions. In my own research, I’ve discovered many benefits of GO statistics. First, Gross Output provides a more accurate picture of what drives the economy. Using GO as a more comprehensive measure of economic activity, spending by consumers turns out to represent around 40% of total yearly sales, not 70% as commonly reported. Spending by business (private investment plus intermediate inputs) is substantially bigger, representing over 50% of economic activity. That’s more consistent with economic growth theory, which emphasizes productive saving and investment in technology on the producer side as the drivers of economic growth. Consumer spending is largely the effect, not the cause, of prosperity.