Understanding the interrelationships between economic metrics is vital. This section focuses on the connections between Gross Domestic Product (GDP), Net National Product (NNP), and related factors. The correct formula will be identified through an analysis of each provided option:
Options:
| 1. GDPmp– Depreciation = NNPmp – Net Factor Income from Abroad |
| 2. GDPmp – net indirect taxes = NNPfc + net indirect taxes |
| 3. GNPfc + net indirect taxes = NNPfc |
| 4. NDPmp + Net Factor Income from Abroad = GDPfc – depreciation |
Analysis:
The calculation of national income principles clarifies the relationships among these economic indicators:
Consequently, the formula GDPmp – Depreciation = NNPmp – Net Factor Income from Abroad accurately reflects the conversion from GDP to NNP, accounting for international income flows. This formula precisely defines the relationship in terms of calculation and definition.

In an economy, exclusion of _______ may lead to under estimation of the value of Gross Domestic Product (GDP).