Expenditure and income methods, with India's demand-side composition

Detail

1. Three ways to measure the same GDP

• GDP (Gross Domestic Product) is the value of all final goods and services produced inside a country in one year.
• GDP can be measured in three ways. All three give the same answer:
• Value-added (production) method: add the value each firm adds.
• Expenditure method: add all spending on final goods.

• Income method: add all incomes paid to the factors of production.

• Why they must match:

• Whatever a firm produces is bought by someone. This is spending.
• The money from that sale is paid out as wages, rent, interest and profit. This is income.

• So production = spending = income.

• GVA (Gross Value Added) is the value of output minus the cost of the raw materials and inputs used. GDP = sum of all GVAs + taxes on products − subsidies on products. The last two items together are called net taxes on products [4].

2. Expenditure method: the idea

• The expenditure method adds up final expenditure. This is spending on goods for their end use. Spending on intermediate goods is left out.
• Intermediate goods are goods used up while making other goods. Example: wheat that a baker turns into bread.
• Final goods are goods bought for end use. They are not processed or resold in the same year.
• Why intermediate goods are left out: their value is already inside the price of the final good. Counting them again is double counting.
• Farmer–baker example:
• Bakers buy wheat and make bread. Consumers spend ₹200 on the bread.
• Households buy ₹50 of wheat directly for their own use. This is final use.
• Expenditure-method GDP = ₹200 + ₹50 = ₹250.
• The wheat that bakers buy is intermediate. It is not added again.

3. The four kinds of final spending a firm receives

Each firm i gets final spending in four forms:

Symbol	What it is	Simple meaning
Cᵢ	Consumption	Households buy the firm's goods for their own use
Iᵢ	Investment	Other firms buy the firm's capital goods (machines, buildings). These are counted because capital goods stay with the buying firm and are not used up in one year
Gᵢ	Government spending	Covers both government consumption (salaries, services) and government investment (roads, dams)
Xᵢ	Exports	Foreigners buy the firm's goods

4. Deriving C + I + G + X − M

• Total spending on C, I and G includes some spending on imports. Call these parts Cₘ, Iₘ and Gₘ.
• Imports are produced abroad, so they are not part of India's GDP. Subtract them:
• GDP ≡ ΣRVᵢ ≡ (C − Cₘ) + (I − Iₘ) + (G − Gₘ) + X ≡ C + I + G + X − M

• Here M = Cₘ + Iₘ + Gₘ (total imports) and ΣRVᵢ is the sum of the firms' revenues from final sales.

• Open economy national income identity:

• Y + M = C + I + G + X
• Left side = total supply (home output Y + imports M). Right side = total use of goods.

• Rearranged: Y = C + I + G + NX, where net exports NX = X − M.

• Worked example:

• C = ₹600, I = ₹250, G = ₹150, X = ₹200, M = ₹220.
• NX = 200 − 220 = −₹20.
• Y = 600 + 250 + 150 − 20 = ₹980.

• When imports exceed exports, NX is negative and it pulls GDP down.

• The sign "≡" means an identity. It is true by definition in the accounts, not a theory about behaviour.

5. Investment: unstable, and "planned + unplanned"

• Investment (I) is the most unstable part of GDP. Firms raise or cut investment sharply when their expectations change.
• In the identity, I includes two parts:
• Planned investment: machines, buildings and stocks that firms meant to add.

• Unplanned investment: a change in stocks (inventories) that firms did not expect. Example: goods that did not sell and stayed in the warehouse.

• Why this matters:

• Unsold output is counted as investment in stocks.
• This makes the accounts balance ex post (after the event).

• So the identity always holds, even when demand falls short of supply.

• Change in stocks (unsold goods plus raw materials held) appears as its own line in India's accounts. See section 9.

6. Income method

• The income method adds the incomes earned by the four factors of production:
• GDP ≡ W + P + In + R (NCERT equation 2.5)

• W = wages (paid to labour), P = profits (to entrepreneurs), In = interest (to capital), R = rent (to land).

• Splitting income into wages, profits, rent and interest is called the functional distribution of income. It shows how income is shared between the factors, not between rich and poor households.

• NCERT error: equation 2.5 is only true in a simple model.
• NCERT's model has no depreciation and no indirect taxes.
• Depreciation (consumption of fixed capital) is the value of machines and buildings worn out during the year.
• Net indirect taxes = indirect taxes (such as GST) − subsidies.
• In real accounts, factor incomes add up to NDP at factor cost (NDP_FC), not GDP.

• GDP at market prices = NDP_FC + depreciation + net indirect taxes.

• Worked example:

• Wages 500 + profits 200 + interest 50 + rent 50 = NDP_FC of ₹800.
• Depreciation = ₹100. Net indirect taxes = ₹100.

• GDP_MP = 800 + 100 + 100 = ₹1,000.

• India's real-data version:

• For 2025-26 at constant prices, GDP was ₹323.12 lakh crore and NDP was ₹279.33 lakh crore [3].

• So depreciation ≈ ₹43.79 lakh crore, or about 13.6% of GDP (worked out from [3]).

• MoSPI now publishes GDP as GVA at basic prices + net taxes on products. For 2025-26 (constant prices): ₹294.91 lakh crore + ₹28.21 lakh crore = ₹323.12 lakh crore [3].

7. Worked check: cotton and cloth (NCERT Tables 2.2–2.3)

• Firm A grows cotton worth ₹50 and uses no inputs. Firm B buys the cotton, turns it into cloth and sells it for ₹200.

Method	Calculation	GDP
Value added	50 + (200 − 50)	₹200
Expenditure	Final spending on cloth	₹200
Income	Wages (20 + 60) + profits (30 + 90) = 80 + 120	₹200

• Lesson: adding total sales would give 50 + 200 = ₹250. This is wrong, because the ₹50 of cotton would be counted twice. All three correct methods give ₹200.

8. India's demand side, 2024-25 (NCERT Table 2.6: old 2011-12 base)

• Data: Provisional Estimates, constant 2011-12 prices, from the RBI Handbook.

Component	₹ lakh crore	Share of GDP
Private Final Consumption Expenditure (PFCE): household spending on consumption; the largest component	106.20	~56.5%
Government Final Consumption Expenditure (GFCE): government spending on current goods and services, such as salaries	17.08	~9.1%
Gross Fixed Capital Formation (GFCF): spending on fixed assets (machines, buildings, roads); the main part of investment	63.33	~33.7%
Change in stocks: change in inventories	3.19	~1.7%
Valuables: purchase of gold, jewellery and similar items, counted in investment	2.71	~1.4%
Investment (GFCF + stocks + valuables)	69.23	~36.8%
Exports	40.68
Imports	42.29
Net exports	−1.61	~−0.9%
Discrepancies	−2.92	~−1.6%
GDP	187.97	100%

• NCERT printing error:
• The table prints net exports (161292) and discrepancies (292131) as positive numbers.
• It prints GDP as "187955".

• The components add up only when both items are negative. The correct total is ₹1,87,96,955 crore, which matches Table 2.5.

• Statistical discrepancy:

• This is the balancing item that makes expenditure-side GDP equal production-side GDP.
• In India, official GDP comes from the production side. Spending-side data is incomplete or arrives late, so a gap remains [4].

9. Current series: base year 2022-23 (replaces 2011-12)

• The base was revised. MoSPI released a new GDP series with base year 2022-23 on 27 February 2026 [2][4].
• Why 2022-23 was chosen:
• The Advisory Committee on National Accounts Statistics (ACNAS), set up in 2024, judged it a "normal" year [4].
• The years 2017-18 to 2021-22 were not used. They were affected by the GST rollout and COVID-19 [4].

• MoSPI aims to revise the base about every five years [4].

• Latest data: 2025-26 Provisional Estimates (released 5 June 2026), constant 2022-23 prices [3]:

Component	₹ lakh crore	Share of GDP (constant)	Share of GDP (current prices)
PFCE	179.94	55.7%	56.7%
GFCE	32.65	10.1%	10.7%
GFCF	104.35	32.3%	31.9%
Change in stocks	4.22	1.3%	1.2%
Valuables	3.03	0.9%	2.0%
Exports	71.65	22.2%	22.2%
Imports	76.62	23.7%	24.4%
Net exports	−4.97	~−1.5%	~−2.2%
Discrepancies	3.90	1.2%	−0.3%
GDP	323.12	100%	100% (₹346.36 lakh crore nominal)

Source for the table: [3]

• Growth in 2025-26: real GDP 7.7%, nominal GDP 8.9%, real GVA 7.9% [3]. PFCE grew 7.7% and GFCF 8.2% in real terms [3].
• Investment total (GFCF + stocks + valuables) in 2025-26 = ₹111.60 lakh crore, about 34.5% of GDP (worked out from [3]).
• PFCE/GDP (current prices) was 56.5% in both 2023-24 and 2024-25 [2] (NCERT, old base: ~56.5% at 2011-12 prices for 2024-25).
• Old and new figures cannot be compared directly. 2024-25 real GDP is ₹299.89 lakh crore at 2022-23 prices [3], but ₹187.97 lakh crore at 2011-12 prices (NCERT). The base year and methods differ.
• Discrepancy in the base year is zero. For 2022-23 the discrepancy is ₹0 [3], because MoSPI balanced the accounts using Supply and Use Tables (SUT) [4].
• An SUT is a big table. It matches what is produced (supply) against how it is used (consumption, investment, exports).

• Differences are adjusted, so the discrepancy is reduced or removed [4].

• Better PFCE measurement in the new series [4]:

• More use of the Household Consumer Expenditure Survey.
• Direct estimates from production data.
• The commodity flow approach, which follows goods from production to final buyers.
• The COICOP 2018 classification (a UN list that groups consumer spending by purpose).

• e-Vahan vehicle data for road-transport spending.

• Better GFCE data: central government spending now uses PFMS (Public Financial Management System) data. This gives actual spending instead of Revised Estimates [4].

• Double deflation now applies to manufacturing as well as agriculture [4].
• Deflation means removing the effect of price changes to find real growth.
• Double deflation removes price changes separately for inputs and for outputs.

• Single deflation has been dropped completely [4].

• Standards:

• India follows the UN System of National Accounts 2008 (SNA 2008). It plans to move to SNA 2025 at the next base revision [4].

• India subscribes to the IMF's Special Data Dissemination Standard (SDDS), a standard for publishing economic data on time and in a set format [4].

• National income link (2025-26, constant prices):

• GNI = ₹318.66 lakh crore and GDP = ₹323.12 lakh crore [3].
• So net factor income from abroad ≈ −₹4.46 lakh crore (worked out from [3]). India pays more factor income to the rest of the world than it earns from it.
• Per capita NNI at current prices: ₹2,08,090 (2025-26) [3].

Prelims Hooks

• GDP ≡ C + I + G + X − M, where M = Cₘ + Iₘ + Gₘ. Open-economy identity: Y + M = C + I + G + X.
• The sum of factor incomes (W + P + In + R) = NDP at factor cost, not GDP_MP. GDP_MP = NDP_FC + depreciation + net indirect taxes.
• Functional distribution of income = the split of income into wages, rent, interest and profit, not a split by household income group.
• Valuables (gold, jewellery) are counted under investment (capital formation), not consumption.
• Unsold output is counted as investment (change in stocks). This is why expenditure GDP always equals output ex post.
• PFCE is the largest demand component: 55.7% of real GDP in 2025-26 [3]. GFCF is second at 32.3% [3].
• India's net exports are negative: imports 23.7% vs exports 22.2% of real GDP in 2025-26 [3].
• Current base year = 2022-23 (series released 27 February 2026). The 2011-12 base is outdated [2][4].
• Statistical discrepancy reconciles expenditure-side GDP with production-side GDP. It is zero in the 2022-23 base year because of Supply and Use Tables [3][4].
• Trap: in the new series, GDP = GVA at basic prices + net taxes on products. Taxes on production (not on products) are already inside GVA at basic prices [4].

Mains Points

• India's growth is driven by consumption, but investment must pick up:
• PFCE is about 56–57% of GDP [2][3]. This makes growth less exposed to global shocks.
• GFCF has stayed around 32% [3]. A lasting rise in private investment is needed for 8%+ growth.

• Link to capex-led budgets, PLI schemes and the "crowding-in" debate.

• Net exports are a drag on GDP:

• Imports exceed exports (NX ≈ −1.5% of real GDP, 2025-26) [3].
• This shows dependence on oil, electronics and gold imports.

• Rising valuables at current prices (2.0% of GDP in 2025-26) [3] shows household savings moving into gold, which does not add to productive capacity.

• Data credibility and GDP measurement:

• A large, changing statistical discrepancy weakens trust in demand-side analysis.
• The 2022-23 series uses SUT balancing, ASUSE/PLFS surveys of the informal sector, double deflation, and GST/PFMS/e-Vahan data [4].

• These answer past criticism of the 2011-12 series, but the back series (due by December 2026) is still pending [4].

• The income method and inequality:

• The functional distribution shows whether profits are rising faster than wages.
• This helps in GS-III debates on jobless growth, labour's share of income and how inclusive growth is.