Net material product¶
A former socialist-accounting aggregate of material-sector net output, excluding fixed-capital consumption and most nonmaterial services.
Core Idea¶
Net material product was the leading macroeconomic aggregate in the Material Product System used by the USSR and other centrally planned economies. It values net output from the sectors classified as material production, such as agriculture, industry, construction, trade, and related transport. Intermediate material inputs and depreciation are removed before sectoral net products are summed. Much nonmaterial-service production lies outside the boundary.
NMP is not simply GDP under another name. GDP's broader production boundary includes service value added that MPS excludes, and its gross measure retains fixed-capital consumption. An IMF comparison describes those differences. The frozen Wikipedia revision mistakenly says productive labor costs are also subtracted; a World Bank accounting definition instead makes wages part of material-sector net product, with profits and taxes. Comparisons must identify coverage, period, and price basis rather than apply a fixed percentage gap from one Soviet table.
Scope of Application¶
These uses require a historical MPS sector boundary and a stated netting, period, and price rule.
- Economic history. Read Soviet-era output series in the Material Product System rather than modern SNA categories.
- National-accounting comparison. Identify omitted services and depreciation when bridging NMP and GDP.
- Sector audit. Determine which freight, trade, and supporting services were counted as material production.
- Formula verification. Reject a profit-only reading that removes wages from the net value-added aggregate.
Clarity¶
NMP totals net output from historically defined material sectors. Remove intermediate material inputs and depreciation, but not productive wages: the frozen Wikipedia labor-subtraction sentence conflicts with primary IMF/World Bank accounts. GDP includes many omitted services and is gross of depreciation. State the country, period, and price basis before comparing the two totals.
Manages Complexity¶
One NMP total compresses diverse covered sectors while deliberately suppressing much service activity and depreciation. Declaring those losses makes it possible to compare historical plans without mistaking a different accounting boundary for faster growth, greater welfare, or a simple rescaling of GDP.
Abstract Reasoning¶
- Specify the country, accounting year, and MPS sector-classification rule.
- Value gross output from the covered material-production sectors on one price basis.
- Net intermediate material inputs and fixed-capital consumption without subtracting productive wages again.
- Sum the remaining sector net products and document the resulting NMP total.
- When comparing with GDP, separately identify omitted services, depreciation, and any period or price-base difference.
Knowledge Transfer¶
The sector-boundary/netting audit transfers to historical MPS economies when each country's classification and valuation rules are reconstructed. Soviet current-ruble gaps do not transfer as a universal GDP multiplier, and the NMP boundary does not become a measure of all service output or household welfare merely because it is a national total.
Relationships to Other Abstractions¶
Current abstraction Net material product Domain-specific
Parents (1) — more general patterns this builds on
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Net material product is a kind of Aggregation Prime
NMP collapses covered material-sector net products into one national total under MPS selection and netting rules.
Hierarchy path (1) — routes to 1 parentless root
- Net material product → Aggregation → Micro Macro Linkage
Neighborhood in Abstraction Space¶
Net material product sits in a crowded region of the domain-specific corpus (39th percentile for distinctiveness): several abstractions share nearly its structure, so a description that fits it tends to fit its neighbors too.
Family — Economic Growth & Development Models (22 abstractions)
Nearest neighbors
- Operating Surplus — 0.89
- Public Debt — 0.88
- Net domestic product — 0.88
- Import Replacement — 0.87
- North–South model — 0.87
Computed from structural-signature embeddings · 2026-10-08