Barter
The direct exchange of goods and services for other goods and services without a medium of exchange.
Core metadata
- ID: barter
- Era: Ancient
- First known date: -8000 (millennium)
- Region: Global / multiple regions
- Review status: source_checked
- Maturity: N/A
Prerequisites
Dependents
- Currency (currency)
- Proto-Currency (proto_currency)
- Town Market Squares (town_market_squares)
- Trade Routes (trade_routes)
Fields
Field lanes
- Finance & Markets: Markets & Commerce
Node sources
- The History of Money (American Numismatic Association Money Museum, 2019, museum) • Supports: node, edge
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 2
- Average edge confidence: 72%
- Prerequisite sources: 2
- expert_inference: 2
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Record Keeping (record_keeping) | historical_predecessor | 75% | expert_inference | Record Keeping is an earlier historical predecessor or foundation, not a one-to-one engineering dependency. |
|
| Labor Specialization (labor_specialization) | enabling | 68% | expert_inference | Labor Specialization provides a capability that enables this technology without being the only possible path. |
|
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