Keynesian Economics aka Keynesianism can be defined as a set of theories developed on the short run, and mostly for the period of recession, total spending in the economy is strongly influenced economics output. As per the view of Keynesian, it is not necessary that the aggregate demand is similar to the fruitful capacity of the economy; whereas it is subjected to the mass by a factor which is at times behaves unpredictably, disturbing production, inflation & employment. Copy the link given below and paste it in new browser window to get more information on Keynesian Economics:- http://www.transtutors.com/homework-help/economics/keynesian-economics.aspx