Population, Income, Unrest and Supplies

Originally posted by Nethog:
One conclusion I have come to is that population is extremely important since it fuels income and supplies, but it is hard to increase.

Summary:

** Population:
Effects:
- Higher Income
- Higher supplies (see supply section)

- Increased Chance and # of Blood Slaves per Blood Hunt

To increase population:
- Positive growth scale (+0.2%/level)

Random Events

Things that decrease population:
- high taxes (0.3% pop lost for every 10% tax above 100%?)
- Pillaging (formula?)
- Patrolling to reduce unrest reduces population (10 per 1 successful unrest reduction)
- Negative growth scale (-0.2%/level)
- random events

Disease, Offensive Spells (Plague, etc)

* Income:
- 200 population generate one gold in taxes, modified by fortresses, scales, unrest, and spells

Magical Sites

- lowers population? (i.e. other than from patrolling) formula?

False

Things that increase unrest:
- taxes over 100%
- battles
- enemy spies
- Blood Hunting
- enemy spells
- Random Events

Enemy Domninion in Friendly owned Provinces.

** Supplies:
A function of (1) population, and (2) fortress within 4 provinces distance. I got this from the thread:

Province Supply Formula

From this I conclude that the reason that say a mountain is low on supplies is because when the game was created, provinces with mountains receive lower population levels?

That is true. Also for Supply it should be noted that Magical Paths of Commanders and Magical Items impact it.