Data card

Steppe/Central Eurasian Civilization Fiscal Data 500 BCE-1500 CE

Fiscal capacity estimates for Steppe/Central Eurasian civilization during long period (500 BCE-1500 CE), showing mobility-based fiscal systems, tribute-based revenue, and fiscal-military relationship.

Steppe / Central Eurasian

Data Summary

Tax revenue (500 BCE): ~$0.04 billion (1990 international $, ~8% of GDP, estimated, includes tribute)
Tax revenue (1000 CE): ~$0.10 billion (1990 international $, ~8% of GDP, estimated, includes tribute)
Tax revenue (1300 CE): ~$0.14 billion (1990 international $, ~8% of GDP, estimated, includes tribute)
Tax-to-GDP ratio (500 BCE-1500 CE): ~8% (stable, estimated, includes tribute extraction)
Military expenditure (500 BCE): ~$0.02 billion (1990 international $, ~50% of tax revenue, estimated)
Military expenditure (1000 CE): ~$0.05 billion (1990 international $, ~50% of tax revenue, estimated)
Military expenditure (1300 CE): ~$0.07 billion (1990 international $, ~50% of tax revenue, estimated)
Military spending as % of GDP (500 BCE): ~4.0%
Military spending as % of GDP (1000 CE): ~4.2%
Military spending as % of GDP (1300 CE): ~3.9%
Trend: Variable (depends on confederation strength, peak during Mongol Empire, includes tribute extraction)
Confidence: Weak (very limited fiscal records, high uncertainty, mobility-based economy difficult to measure, estimates based on typical ratios)
Source: Historical fiscal records (where available), comparative estimates, Maddison Project GDP estimates, mobility-based assumptions
Period: 500 BCE-1500 CE (Xiongnu, Türk, Mongol phases)

Time Series Data

Year	Tax Revenue (billions, 1990 $)	Tax-to-GDP Ratio	Military Expenditure (billions, 1990 $)	Military % of Tax Revenue	Military % of GDP	Source	Notes
500 BCE	0.04	8%	0.02	50%	4.0%	Estimates	Early steppe polities
100 CE	0.05	8%	0.02	40%	3.2%	Estimates	Xiongnu expansion
500 CE	0.06	8%	0.03	50%	3.8%	Estimates	Türk expansion
1000 CE	0.10	8%	0.05	50%	4.2%	Estimates	Pre-Mongol period
1200 CE	0.12	8%	0.06	50%	4.3%	Estimates	Mongol expansion begins
1300 CE	0.14	8%	0.07	50%	3.9%	Estimates	Mongol peak (includes tribute)
1500 CE	0.13	8%	0.06	46%	3.8%	Estimates	Post-Mongol period

Fiscal-Military Relationship Analysis

Fiscal capacity enables military capacity: Variable tax revenue (0.04B → 0.14B peak) enables variable military organization (50K-100K → 300K-400K peak warriors)
Military expenditure strains fiscal systems: Military spending ranges from 40% to 50% of tax revenue, creating moderate fiscal pressure
Fiscal-military cycles: Expansion cycles (Xiongnu, Türk, Mongol) → Fiscal capacity enables military expansion (tribute extraction enables military capacity)
Fiscal sustainability: Fiscal capacity enables military sustainability despite moderate fiscal pressure (tribute extraction model different from agrarian taxation)

Comparative Context

Regional average (Central Asia, 1000 CE): ~8% tax-to-GDP ratio (includes tribute)
Global average (1000 CE): ~6-10% tax-to-GDP ratio
Ranking: Low fiscal capacity globally (500 BCE-1500 CE, 8th-10th largest economy, but very low absolute volume)
Tax-to-GDP ratio: Moderate (8%) for pre-modern period (but includes tribute extraction, not traditional taxation)
Military spending as % of GDP: Moderate (3.8-4.3%) for pre-modern period
Comparison to other civilizations (1000 CE):
- Sinitic: ~0.008x tax revenue (Sinitic ~$2.1B)
- Islamic: ~0.06x tax revenue (Islamic ~$1.8B)
- Note: Very low absolute volume due to low population density and mobility-based economy

Fiscal System Characteristics

Tribute-based revenue: Primary revenue source (tribute extraction from conquered regions, not traditional taxation)
Mobility-based organization: Fiscal systems based on mobility and tribute extraction, not settled taxation
Confederation-based: Fiscal systems vary by confederation strength
Limited monetary taxation: Very limited (primarily tribute in-kind, some trade-based)
Different fiscal model: Fiscal systems based on tribute extraction rather than traditional taxation (see Steppe Military Organization and Mobile Polities)

Key Events

500 BCE-100 CE: Xiongnu expansion period - Fiscal capacity growth (tax revenue $0.04B → $0.05B), tribute extraction systems
500-1000 CE: Türk expansion period - Fiscal capacity growth (tax revenue $0.06B → $0.10B), tribute extraction systems
1000-1300 CE: Pre-Mongol and Mongol expansion period - Fiscal capacity growth (tax revenue $0.10B → $0.14B peak), tribute extraction systems
1206 CE: Mongol Empire founded → Mongol Empire Founded (1206 CE) - Chinggis Khan, imperial expansion (fiscal peak, tax revenue $0.14B includes tribute)
1300-1500 CE: Post-Mongol period - Fiscal capacity decline (tax revenue $0.14B → $0.13B), fragmentation
Event-data integration: Fiscal capacity growth (tax revenue $0.04B → $0.14B peak) linked to Xiongnu expansion (500 BCE-100 CE), Türk expansion (500-1000 CE), and Mongol Empire (1206 CE), with tribute extraction enabling fiscal capacity despite low base GDP

Tax Revenue† (billions_1990_intl_dollars, 500 BCE-1500 CE)

Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).

Data table (7 points)

Year	Value	Source
-500	~0.04	Estimates
100	~0.05	Estimates
500	~0.06	Estimates
1000	~0.1	Estimates
1200	~0.12	Estimates
1300	~0.14	Estimates
1500	~0.13	Estimates

Tax-to-GDP Ratio† (percent, 500 BCE-1500 CE)

Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).

Data table (7 points)

Year	Value	Source
-500	~8	Estimates
100	~8	Estimates
500	~8	Estimates
1000	~8	Estimates
1200	~8	Estimates
1300	~8	Estimates
1500	~8	Estimates

Military Expenditure† (billions_1990_intl_dollars, 500 BCE-1500 CE)

Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).

Data table (7 points)

Year	Value	Source
-500	~0.02	Estimates
100	~0.02	Estimates
500	~0.03	Estimates
1000	~0.05	Estimates
1200	~0.06	Estimates
1300	~0.07	Estimates
1500	~0.06	Estimates

Military % of Tax Revenue† (percent, 500 BCE-1500 CE)

Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).

Data table (7 points)

Year	Value	Source
-500	~50	Estimates
100	~40	Estimates
500	~50	Estimates
1000	~50	Estimates
1200	~50	Estimates
1300	~50	Estimates
1500	~46	Estimates

Military % of GDP† (percent, 500 BCE-1500 CE)

Some values are estimates (interpolated or inferred); each carries a method and confidence in the table (hover the ~).

Data table (7 points)

Year	Value	Source
-500	~4	Estimates
100	~3.2	Estimates
500	~3.8	Estimates
1000	~4.2	Estimates
1200	~4.3	Estimates
1300	~3.9	Estimates
1500	~3.8	Estimates

About this entry

A draft entry preserved from civilization.study. Evidence grade: weak. 1 of 1 listed sources are fully documented; the rest are names only. † marks figures that are scholarly estimates. Method and sources

Methodology Notes

Estimation method: Historical fiscal records (where available), comparative estimates using GDP and typical tax ratios, mobility-based assumptions, tribute extraction estimates
Data quality: Weak (very limited fiscal records, high uncertainty, mobility-based economy difficult to measure, estimates based on typical ratios)
Uncertainty range: Tax revenue ±40%, tax-to-GDP ratio ±4%, military expenditure ±40%
Limitations: Very limited fiscal records, high uncertainty, mobility-based economy difficult to measure, estimates based on typical ratios, tribute extraction difficult to quantify
Cross-validation: Validated against Maddison Project GDP estimates, military size data (where available), mobility-based assumptions

Integration with Corpus

Links to claims: Steppe / Central Eurasian Civilization
Links to data: Steppe/Central Eurasian Civilization GDP Data 500 BCE-1500 CE, Steppe/Central Eurasian Civilization Military Size Data 500 BCE-1500 CE
Supports patterns: Fiscal-Military State Dynamics, Fiscal Systems and State Capacity, Guns–Germs–Style (GGS) Axes and Success/Failure Mechanisms, Steppe Military Organization and Mobile Polities
GGS implications: Fiscal capacity measures Style axis (institutional coordination, administrative capacity); fiscal-military relationship demonstrates Guns-Style interaction; different fiscal model (tribute extraction) demonstrates alternative fiscal-military relationship
Framework integration: Fiscal-military relationship demonstrates how fiscal capacity enables military capacity (Guns axis) but uses different fiscal model (tribute extraction rather than traditional taxation)

Notes

Fiscal capacity enables variable military organization (50K-100K → 300K-400K peak warriors) but uses different fiscal model (tribute extraction)
Tax-to-GDP ratio stable at ~8%, but includes tribute extraction rather than traditional taxation
Military spending ranges from 40% to 50% of tax revenue, creating moderate fiscal pressure but enabled by tribute extraction
Different fiscal model demonstrates alternative fiscal-military relationship (tribute extraction enables military capacity, not traditional taxation)
Links to Fiscal-Military State Dynamics for complete fiscal-military analysis