Micro economics origin and meaning

the word micro is derived from word "Micros" meaning small. Thus micro economics deals with small units of an economy such as an individual consumer,individual firm,individual industry etc...

micro-oeconomics is concerned with the behaviour of individual consumers,factor owners,firms and individual industries and markets.It is through their interaction that microeconomic theory explains how prices of products and factors are determined and how resources are allocated between various products.

               In microeconomic theory it is assumed that full employment of resources  such as labour and capital prevails and analysis how they are allocated amoung different products. Further,it explains whether resource allocation achieved is economically efficient.