MEANING OF MACRO ECONOMICS

Give two examples of Macro Economic variables.
Or
Give two examples of macro economic studies [Delhi, Foreign 2004, 06, 07, 07C; AI 2005, 06, 07] Or
Give two examples of the study of aggregates of the economic system.

Give one example of microeconomics. [Delhi 2004C]
Or
Give two examples of micro economic study. [AI, Foreign 2004; Delhi 2005]

Define macroeconomics. [A I 2004, 06, 07, 07C; Foreign 2006, 07; Delhi 2004C, 05, 06, 07, 07C]

Name the branch of economics which is primarily concerned with the study of broad aggregates.
Or Which branch of economic deals with the aggregates of the economy ?

Who is the father of modern Macroeconomics Analysis ?
Or
Name the economist who gave the understanding of Macro Economics for the first time.

Name the book written by Lord J.M. Keynes on Macro Economics.