BharatNotes What is Capex Multiplier?
The capex multiplier measures how much total output (GDP) expands for every additional rupee the government spends on capital expenditure — spending that creates productive assets such as highways, railways, ports and power infrastructure. It is a specific application of the Keynesian fiscal multiplier. The most-cited Indian estimate comes from the NIPFP working paper Fiscal Multipliers for India by Sukanya Bose and N. R. Bhanumurthy (2013; published in Margin: The Journal of Applied Economic Research, 2015): a capital expenditure multiplier of 2.45, meaning ₹1 crore of additional government capex raises nominal GDP by about ₹2.45 crore by the end of the year.
Why is the Capex Multiplier Higher than the Revenue Multiplier?
| Expenditure type | Multiplier (NIPFP: Bose & Bhanumurthy) |
|---|---|
| Capital expenditure | 2.45 |
| Other revenue expenditure | 0.99 |
| Transfer payments | 0.98 |
Capital spending works through more channels than revenue spending. It directly raises public investment, which crowds in private investment by improving connectivity, lowering logistics costs and signalling demand; it generates employment in construction and ancillary industries; and the assets created keep adding to productive capacity for years. Revenue expenditure (salaries, subsidies, transfers), by contrast, largely fuels one-round consumption, so its multiplier stays below 1. Secondary analyses citing NIPFP work also suggest the cumulative long-run effect of capex can be substantially larger (figures around 4.8 are widely quoted) than the same-year impact.
Current Status: India's Capex Push
The multiplier logic has driven a deliberate reorientation of the Union Budget towards capital spending since the COVID-19 recovery:
- Budget 2026-27 (presented 1 February 2026) pegs central capital expenditure at ₹12.2 lakh crore, about 3.1% of GDP and roughly 11.5% higher than the 2025-26 revised estimate (Budget 2025-26 capex was ₹11.2 lakh crore).
- Effective capital expenditure (capex plus grants-in-aid to states for capital asset creation) is projected at about 4.4% of GDP for 2026-27.
- ₹1.85 lakh crore is allocated as capital expenditure loans to states (2026-27), extending the multiplier logic through cooperative federalism.
- The fiscal deficit target of 4.3% of GDP for 2026-27 (against 4.4% RE for 2025-26) shows the strategy of pairing capex expansion with fiscal consolidation — improving the quality of spending while reducing its overall deficit footprint.
UPSC Angle
This is a foundational concept that underpins questions on government budgeting, fiscal policy, the capital-vs-revenue expenditure distinction, crowding in/out and infrastructure-led growth. For Prelims, remember the NIPFP multiplier values, the meaning of effective capital expenditure, and the latest Budget capex numbers (date-stamped). For Mains (GS3), the capex multiplier is the standard analytical tool to argue why fiscal consolidation should compress revenue expenditure rather than capital outlay, and to evaluate schemes such as the 50-year interest-free capex loans to states. A balanced answer should also note limits: long gestation lags, implementation capacity of states, and the still-awaited full revival of private corporate capex.
