Mohammad, in your post you mention production several times. But 
production of what? How about wealth? This is a term which remains 
undefined or poorly defined by neo-classical and Keynesian economists. 
Adam Smith was certainly on the right track when he referred repeatedly 
to "the annual produce of the land and labor of a society, the real 
wealth of its inhabitants." He also fell into confusion when including 
land and personal qualities such as skill in the term, wealth. 
 
Incidentally, the concept, GDP is somewhat of a misnomer since it 
represents the money flow into both goods and services. Strictly 
speaking, services are not produced but provided or rendered. Anyway, I 
don't believe services as well as money and financial assets can be 
considered as part of the wealth of nations or individuals. 
 
Roy Davidson