Thomas Piketty quotes - page 2
I can now present the first fundamental law of capitalism, which links the capital stock to the flow of income from capital. The capital/income ratio β is related in a simple way to the share of income from capital in national income, denoted α. The formula is
α = r × β
Where r is the rate of return on capital.
For example, if β=600% and r = 5%, then α = r × β = 30%.
In other words, if national wealth represents the equivalent of six years of national income, and the rate of return on capital is 5 percent per year, then capital's share in national income is 30 percent.
Thomas Piketty
