Master the six national income aggregates — GDP, GNP, NNP, NI, Private Income, and PDI — and learn to move fluently between them using NFIA, depreciation, and NIT conversions.
This chapter introduces the foundational accounting framework of macroeconomics: the set of related aggregates used to measure the size of an economy. Starting from the concept of Domestic Territory (which extends beyond geographic borders to include embassies, ships, and oil rigs) and Normal Resident (which is about economic ties, not citizenship), the chapter builds up to the six core aggregates: GDP at Market Price, GNP at Market Price, NNP at Market Price, NNP at Factor Cost (National Income), Private Income, and Personal Disposable Income.
Each aggregate answers a slightly different question. GDP measures production within a country's borders; GNP adjusts for income flowing to and from abroad (NFIA); NNP accounts for capital consumption (depreciation); NI converts from market price to factor cost by subtracting Net Indirect Taxes. Private Income and PDI track what households actually receive and can spend. CBSE board papers regularly test conversions between these aggregates as 4-mark or 6-mark numericals — knowing the exact chain and which adjustments to add or subtract is the single most important skill in this chapter.