According to K.E.Boulding, “Macro economics deals not with individual quantities as such put with the aggregates of these quantities, not with individual incomes but with the national income; not with individual output but with the national output.”
According to Schultz, “The main tool of macro economics is national income analysis.”
According to M.H.Spencer, “Macro economics is concerned with the economy as a whole or large segments of it. In macro economics, attention is focused on such problem as the level of unemployment, the rate of inflation, the nation’s total output and other matters of economy wide significance.
