Q.Macro economics is a study of ________.

Macro Economics studies the economy as a whole — its aggregates such as national income, aggregate output, total employment, the general price level and the money supply — rather than the behaviour of any single unit, which is why it is also called Income Theory. It is aggregative in nature, using the method of 'lumping' individual quantities into economy-wide totals and analysing the general equilibrium of the economy's major markets together. The modern subject was shaped by J. M. Keynes, whose General Theory (1936) argued that aggregate demand determines the economy's …