Stability
From EU2Wiki
The stability of a country is a small integer (ranging from -3 to +3) which quantifies how stable it is politically and economically. High stability has economic benefits. Many diplomatic actions and random events reduce stability. At the lowest stability, a country cannot declare war.
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[edit] Seeing Stability
Your country's stability is shown right at the top of the main screen, just to the right of the date, next to a little flag icon.
You can see other country's stability by clicking on their capital. The country screen shows this information.
[edit] Effects of Stability
A country's current stability level has the following effects:
- At +3, all monthly investment into stability is directed into treasury instead. Automatic investments into stability are lost.
- At +3, there is a bonus +20% addition to the province tax multiplier.
- At +2, there is a bonus +10% addition to the province tax multiplier.
- High stability makes it much more likely to successfully place merchants, and for them to be "sticky" (that is to resist being bumped by other countries' merchants).
- High stability seems to make diploannexation and diplovassalization more likely.
- At +1 stability or higher, it cannot get a civil war.
- At -1 stability or lower, it cannot break a vassalage as a voluntary diplomatic action.
- At -3 stability, it cannot declare war.
- At -3 stability, it cannot impose war taxes.
- At -3 stability, if a country gets a stabhit, it gets a rebellion check instead.
- At -3 stability, a human player cannot reject a favorable peace offer.
[edit] Lowering Stability
There are a lot of ways in which a country's stability may be dropped. There are many random events which drop stability. Some countries also have scripted events which drop stability.
Stability is also lowered by an amount whenever a country does any of the following actions:
- Declaration of war without a casus belli: -2
- DoW against a country with good relations: if >+100, -1; if >+150, -2
- DoW against country with the same state religion: -1. This stabhit does not apply to pagans and is no longer active after 1600.
- DoW against country with which you've got a peace treaty: -5
- Break royal marriage: -1. This includes automatically breaking RMs when entering a war via your own DoW or an alliance member's call.
- Break a vassalization: -3.
- Cancel or revoke military access: -1.
- Initiate a trade embargo, unless at war with the target country: -1.
- Reject a favorable peace, when warscore is at least -50 against you: -1.
- Claim the throne of another country: -1
[edit] Raising Stability
There are a fair number of random events which raise stability, although in many cases this is an option which costs money. Many countries have scripted events which raise stability.
The main means for raising stability is via investment into stability. When the total amount invested by a country reaches a certain amount, called its "stability cost", its stability will increase by one point.
There are two sources of automatic investment: twice the monarch's Administrative rating is invested each money, and each Fine Arts Academy invests 5d per month. There is also a source of automatic disinvestment: a country's base war exhaustion level is subtracted from its stability investment each month. In extreme cases (bad monarch, high WE), automatic investment can be negative. If this is the case, a minimum of zero investment applies; investment cannot go negative nor can a country lose stability in this situation.
The treasury sliders may also be used to invest monthly income into stability.
[edit] Stability Cost
A country's stability cost is computed based on its owned provinces. The primary factor is the religion there: cities with the state religion have low stability costs; other religions tend to be quite expensive.
Stability cost =
Base Cost (sum of costs for each city, colony and trading post)
x DP multiplier
x Badboy multiplier
x FAA multiplier
x Vassal multiplier
x HRE multiplier
x Inflation
The base cost and multipliers are defined below, other than inflation.
[edit] Base Stability Cost
Here is how to determine the base stability cost of each owned province.
[edit] City Base Costs
For each city, the base cost depends on two factors:
- the match between the city's religion and the state religion
- a bonus or malus based only on the state religion
State Religion City Religion Cost Christian Same Christian 25 Christian Other Christian 50 Christian Non Christian 100 Non Christian Same religion 25 Non Christian Others 60
Plus/minus the state religion malus/bonus
Protestant 3 Reformed 3 CRC -6 Catholic -6 Orthodox -8 Sunni -6 Shiite -6 Paganism 5 Confucianism -10 Buddhism -5 Hinduism 3
[edit] Colony and TP base costs
The base stability cost for colonies and trading posts are each fixed:
Colony 5 Trading post 2
[edit] Example
England, 1617. State religion is Protestant. Has 18 cities:
- 7 are Protestant (same religion),
- 9 are Catholic or Reformed (other Christian),
- 2 are Pagan (non Christian)
Has 4 colonies Has 3 trading posts
Base costs = 28*7 + 53*9 + 103*2 + 4*5 + 3*2 = 905
[edit] Multipliers to Net Base Costs
The following multipliers are applied to the sum of the base costs for all provinces.
[edit] DP multiplier
Sum of the effects of the positions of the Innovativeness and Serfdom domestic policy sliders. The percentage changes are added together; thus, the range of the DP multiplier is from 0.25 (-75%) at zero innovative and serfdom 10, up to 1.75.
[edit] Badboy multiplier
A penalty is added per point of BB, that depends on BB as a percentage of max BB.
BB state Multiplier -------- ---------- 0 <= BB <= 0.5*BBmax min(1+2*BB/100, 4) 0.5*BBmax < BB <= BBmax min(1+4*BB/100, 4) BBmax < BB 4
[edit] FAA multiplier
-1% per fine arts academy owned. This multiplier is capped at 0.50.
[edit] Vassal multiplier
This multiplier varies with the country's centralization, and the number of vassals the country has which are on the same continent as the country. Their size, religion, income, etc. make no difference.
Centralization 1st 2nd and each additional
vassal vassal
0 8 4
1 7.2 3.6
2 6.4 3.2
3 5.6 2.8
4 4.8 2.4
5 4 2
6 3.2 1.6
7 2.4 1.2
8 1.6 0.8
9 0.8 0.4
10 0 0
The maximum reduction is capped at 20%. Thus, with full decentralization a country will receive a -20% on stability costs with 4 vassals.
[edit] HRE multiplier
The emperor of the Holy Roman Empire gets a bonus of 1% for each supportive elector. This effect is capped de-facto by the number of electors.
[edit] Examples of Stability Cost Computation
Here are some examples of stability prices for countries as they are in 1419. These costs may be relatively easily checked by simply starting a the scenario and mousing over the stabilily slider.
Country Spain Ottoman Empire Timurud Empire
----------- ------------ ----------------
State Religion Catholic Sunni Sunni
Province religions
Catholic 7 133 0 0 0 0
Orthodox 0 0 6 324 0 0
Sunni 2 188 1 19 14 266
Shi'ite 0 0 0 0 9 486
Confucianism 0 0 0 0 0 0
Buddhism 0 0 0 0 0 0
Colonies 1 5 0 0 3 15
--- --- ---
Base Stability Cost 326 343 767
Multipliers:
DP multiplier
Innovativeness 2 -5% 5 +0% 2 -15%
Serfdom 7 -20% 5 +0% 7 -20%
x 0.75 x 1.0 x 0.65
BB multiplier
BBmax 35 37 39
BB 0 x 1.0 0 x 1.0 30 x 2.20
FAA multiplier 0 x 1.0 0 x 1.0 0 x 1.0
Vassal multiplier
#Vassals 0 0 1
Centralization x x 1.0 x x 1.0 1 x 0.928
Inflation 0 x 1.0 0 x 1.0 10 x 1.10
=== === =====
Stability cost 244.5 343 1119.6
