Editing Effects (section)

== How effects work ==
Effects are expressed as multipliers applied to a base value. A multiplier of ×1.0 means no change, values above ×1.0 increase the stat, and values below ×1.0 decrease it. For example, [[Worker Safety]] applies a ×0.2 accident rate multiplier, reducing workplace accidents to 20% of their base frequency.

When multiple effects of the same type are active (for example, from a choice and an alliance type), they stack multiplicatively. If a settlement has both [[Vegan Society]] (×1.2 food production) and [[Dubious Working Rules]] (×1.1 food production) active, the combined food production multiplier is ×1.32 (1.2 × 1.1).

For cost-reducing effects like export cost and import cost, lower multipliers are better. A ×0.85 export cost multiplier means exports cost only 85% of the base price, saving the player 15% on every trade.