GDP 

Gross Domestic Product is the gross market value of all the final goods and services produced by the people of a country under Domestic Territory (Nation`s Border) . Many economist use GDP as the nation's economic indicator.

GNP 

Gross National Product is the gross market value of all the final goods and services produced by the Normal Residents(Citizens) of a country . GNP is now commonly substituted by Gross National Income (GNI).