Trade and Networks

Governing question

How do routes, currencies, specialization, and intermediaries create leverage?

The map answers by connecting source-grounded mechanics rather than by proposing a single master variable. It is a boundary around a problem, not a claim that the problem can be isolated from the other nine systems.

System boundary

This system begins with liquid reserves and possible connections, then follows their allocation through purchases, trade routes, posts, and city-state influence. It ends where exchanged resources enter another production or political system.

State variables and resources

The principal state carried through this system includes gold income, treasury, maintenance, route capacity, route yields, range, trading posts, envoys, city-state thresholds, and network alternatives. Some are stocks that accumulate, some are flows that recur each turn, and some are thresholds that change behavior when crossed. Keeping those types distinct prevents a temporary flow from being mistaken for durable capacity.

Actors and institutions

The game assigns causal roles to cities, traders, governments, foreign partners, city-states, rivals competing for influence, and maintained units and buildings. The player coordinates them with far more unity than their historical analogues would possess. The map therefore treats actor alignment as an assumption to interrogate, not a neutral background fact.

Mechanic map

flowchart LR
  A[Inputs and inherited conditions] --> B[Institutional conversion]
  B --> C[Usable capability]
  C --> D[Expansion or deeper specialization]
  D --> E[Recurring obligations and exposure]
  E -. constrains .-> B
  C -. funds .-> B

The solid path shows how capacity compounds; the dotted paths show why compounding is conditional. Each linked dossier below supplies a more precise version of one or more arrows.

Feedback loops

Exchange and influence produce yields that finance more routes, infrastructure, and envoys. Maintenance, finite capacity, contestation, and disrupted links balance network expansion.

The system should always be read with both loops present. A map of reinforcement alone becomes a story of inevitable ascent; a map of constraint alone becomes a story of fixed limits. Civilization VI is analytically useful because it repeatedly makes expansion generate the next burden that must be solved.

Characteristic tensions

• spend or retain liquidity
• domestic development or foreign exchange
• centralize through hubs or pay for redundancy

These are portfolios rather than binary moral choices. The relevant question is what mix fits the current horizon and what switching cost will be paid if conditions change.

Linked mechanics

• Resource Distribution and Extraction — accumulation-depletion, conversion-exchange, bottleneck-capacity
• Religious Pressure and Diffusion — network-diffusion, positive-feedback, contest-bargaining-coalition
• Cultural Influence and Tourism — network-diffusion, accumulation-depletion, information-uncertainty
• Gold, Liquidity, and Purchasing — accumulation-depletion, conversion-exchange, shock-recovery-adaptation
• Bankruptcy and Maintenance Burden — maintenance-carrying-cost, threshold-phase-change, negative-feedback
• Trade Route Capacity and Yields — conversion-exchange, network-diffusion, specialization-portfolio
• Trade Range and Trading Posts — network-diffusion, prerequisite-path-dependence, positive-feedback
• Envoys, Suzerainty, and Network Power — network-diffusion, threshold-phase-change, contest-bargaining-coalition
• Agreements, Borders, and Joint Action — contest-bargaining-coalition, network-diffusion, legitimacy-compliance-defection
• Alliances, Emergencies, and World Congress — contest-bargaining-coalition, externality-collective-action, threshold-phase-change

Analytical rules

• Location Creates Possibilities, Not Outcomes — Location creates a field of possibilities rather than a predetermined outcome.
• Inputs Matter Through Conversion Chains — Raw inputs become capacity only through conversion chains.
• Specialization Trades Autonomy for Productivity — Specialization raises productivity while increasing dependence.
• Infrastructure Creates Recurring Obligations — Durable capacity converts one-time investment into recurring obligations.
• Flexibility Has Option Value — Reconfiguration and reserves have option value under uncertainty.
• Shared Belief Coordinates and Partitions — Shared belief coordinates internally while sharpening boundaries.
• Influence Spreads Through Repeated Contact — Influence diffuses through repeated contact and network access.
• Liquidity Collapses Timing Gaps — Liquidity shortens the gap between intent and deployable capacity.
• Networks Compound Value and Transmit Disruption — Networks compound value and transmit disruption.
• Conflict Accumulates Costs Beyond Losses — Conflict produces cumulative political costs beyond battlefield losses.
• Grievance Narrows Future Bargains — Accumulated grievance narrows the future bargaining space.
• Collective Rules Distribute Costs and Privileges — Collective rules distribute costs and privileges as well as solve problems.
• Local Gains Can Create System-Wide Costs — Local optimization can create system-wide externalities.

What the game reveals

Network value is historical and relational. Liquidity and connections shorten time and distance, while centrality creates both leverage and dependence.

The map’s value is comparative: it makes stocks, bottlenecks, adjacency, thresholds, maintenance, and network position inspectable across systems that the interface presents separately.

What the game abstracts away

Analytical boundary

Trade is state-directed and prices barely mediate allocation. Firms, households, debt, currencies, unequal gains, smuggling, labor, and private political power are missing.

The simulation also fixes objectives, compresses time, and grants the player unusual knowledge and authority. No system map is a historical theory until independent evidence identifies actors, causal mechanisms, scope, and alternatives.

Source coverage

The private coverage ledger maps 25 core Civilopedia source records directly to this system’s published mechanic dossiers. The complete 1,942-record ledger also classifies entity examples, variants, optional modes, system details, and navigation indexes. Those records support editorial accountability without becoming a page-for-page public mirror.