GNP v. GDP as a true measure of national vibrancy Is the GNP a more realistic number or measure of national economic vitality regarding its citizenry/residents of the nation in question versus the GDP?
What used to be called GNP is now called Gross National Income (GNI) as being more descriptive of what it is measuring.

So GDP measures what is produced in a year while GNI measures incomes in a year, with the difference being some cross-border flows of money unrelated to exports and imports of goods and services.

Personally I prefer GDP as it reflects what is happening in a country, but it depends on what you regard as vitality.