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PPT - National Income and Related Aggregates

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KEY CONCEPTS
? Macro Economics: Its meaning
? Consumption goods, capital goods, final goods, intermediate goods, stock and flow, 
gross investment and depreciation.
? Circular flow of income
? Methods of calculation of national income
? Value added method (product method)
? Expenditure method
? Income method
? Concepts and aggregates related to national income
? Gross national product
? Net National product
? Gross and Net domestic product at market price and at factor cost.
? National disposable income (Gross and net)
? Private income
? Personal income
? Personal disposable income
? Real and Nominal GDP
? GDP and welfare
Page 3


KEY CONCEPTS
? Macro Economics: Its meaning
? Consumption goods, capital goods, final goods, intermediate goods, stock and flow, 
gross investment and depreciation.
? Circular flow of income
? Methods of calculation of national income
? Value added method (product method)
? Expenditure method
? Income method
? Concepts and aggregates related to national income
? Gross national product
? Net National product
? Gross and Net domestic product at market price and at factor cost.
? National disposable income (Gross and net)
? Private income
? Personal income
? Personal disposable income
? Real and Nominal GDP
? GDP and welfare
Macro Economics
?Macroeconomics is the study of 
aggregate economic variables of an 
economy.
Page 4


KEY CONCEPTS
? Macro Economics: Its meaning
? Consumption goods, capital goods, final goods, intermediate goods, stock and flow, 
gross investment and depreciation.
? Circular flow of income
? Methods of calculation of national income
? Value added method (product method)
? Expenditure method
? Income method
? Concepts and aggregates related to national income
? Gross national product
? Net National product
? Gross and Net domestic product at market price and at factor cost.
? National disposable income (Gross and net)
? Private income
? Personal income
? Personal disposable income
? Real and Nominal GDP
? GDP and welfare
Macro Economics
?Macroeconomics is the study of 
aggregate economic variables of an 
economy.
Consumption goods
? Are those which are bought by consumers as final or 
ultimate goods to satisfy their wants.
? Eg: Durable goods car, television, radio etc.
? Non-durable goods and services like fruit, oil, milk, 
vegetable etc.
? Semi durable goods such as crockery etc.
Page 5


KEY CONCEPTS
? Macro Economics: Its meaning
? Consumption goods, capital goods, final goods, intermediate goods, stock and flow, 
gross investment and depreciation.
? Circular flow of income
? Methods of calculation of national income
? Value added method (product method)
? Expenditure method
? Income method
? Concepts and aggregates related to national income
? Gross national product
? Net National product
? Gross and Net domestic product at market price and at factor cost.
? National disposable income (Gross and net)
? Private income
? Personal income
? Personal disposable income
? Real and Nominal GDP
? GDP and welfare
Macro Economics
?Macroeconomics is the study of 
aggregate economic variables of an 
economy.
Consumption goods
? Are those which are bought by consumers as final or 
ultimate goods to satisfy their wants.
? Eg: Durable goods car, television, radio etc.
? Non-durable goods and services like fruit, oil, milk, 
vegetable etc.
? Semi durable goods such as crockery etc.
Capital goods
? capital goods are those final goods, which 
are used and help in the process of 
production of other goods and services. 
E.g.: plant, machinery etc.
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FAQs on PPT - National Income and Related Aggregates

1. What is the difference between GDP and GNP in national income accounting?
Ans. GDP (Gross Domestic Product) measures the total market value of goods and services produced within a country's borders, while GNP (Gross National Product) includes income earned by citizens abroad but excludes foreign earnings within borders. GDP focuses on geographical production; GNP focuses on citizenship-based income. For CBSE Class 12 Economics, understanding this distinction is crucial for calculating national income aggregates accurately.
2. How do I calculate net national income from gross national product?
Ans. Net National Income (NNI) is derived by subtracting depreciation (capital consumption allowance) from Gross National Product. The formula is: NNI = GNP - Depreciation. Depreciation accounts for wear and tear of capital assets during production. This adjustment converts gross measures into net measures, providing a more accurate picture of actual income available for consumption and investment in the economy.
3. What's the difference between nominal GDP and real GDP and why does it matter for exams?
Ans. Nominal GDP uses current year prices, while real GDP adjusts for inflation using constant prices from a base year. Real GDP provides an accurate comparison across years by eliminating price fluctuations, showing actual economic growth. For CBSE examinations, this distinction is vital because nominal GDP can appear higher due to inflation alone, masking true economic performance and productivity changes.
4. Why is depreciation subtracted when calculating national income?
Ans. Depreciation represents the reduction in value of capital assets through wear, tear, and obsolescence during production. Subtracting it from gross measures yields net figures that reflect only income genuinely available for spending and investment. This adjustment ensures national income accounts don't overstate actual earnings by including resources merely used up maintaining existing capital stock rather than creating new wealth.
5. What counts as transfer payments and why are they excluded from national income calculation?
Ans. Transfer payments are monetary transfers without corresponding production-pensions, unemployment benefits, gifts, and subsidies. They're excluded because national income measures only newly produced goods and services' value. Transfer payments redistribute existing income rather than creating new production. Including them would cause double-counting, inflating national income figures and misrepresenting actual economic output and aggregate income generation capacity.
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