It economic terms, what is the difference between GNP (Gross National
Product) and GDP (Gross Domestic Product)?

Would this brief explanation be adequate:
http://www.quickmba.com/econ/macro/gdp/

THis is a free comment, not an answer to your question.

Hi,

Here is your answer, hope this helps.

GDP measures the output of goods and services within the borders of
the country. Gross National Product (GNP) measures the output of a
nation's factors of production, regardless of whether the factors are
located within the country's borders. For example, the output of
workers located in another country would be included in the workers'
home country GNP but not its GDP. The Gross National Product can be
either larger or smaller than the country's GDP depending on the
number of its citizens working outside its borders and the number of
other country's citizens working within its borders.

In the United States, the Gross National Product (GNP) was used until
the early 1990's, when it was changed to GDP in order to be consistent
with other nations.

Thanks,

@ anshumank-ga,
I expect that Nosecone could have found that text on the site I
mentioned, and you should give a source if you post a text from a
website.  ;)
Cheers, Myoarin