At this stage it is important to point out that the capital shares and average rates of return indicated in Figures 6.1–4 were calculated by adding the various amounts of income from capital included in national accounts, regardless of legal classification (rents, profits, dividends, interest, royalties, etc., excluding interest on public debt and before taxes) and then dividing this total by national income (which gives the share of capital income in national income, denoted α) or by the national capital stock (which gives the average rate of return on capital, denoted r).
