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Planet population's approval rating

 
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Planet population's approval rating - 7/10/2014 3:47:30 PM   
dhayut

 

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I learnt from manual that approval rating below 0 will lead to uprisings (which are easily prevented by placing 3 infantry troops).
And manual says that I should "strive" for +15 or bigger approval rating.

So what is difference between different approval levels (except for population growth and possibility of uprising)?

(I experimented with different taxes, and I didn't see mych difference between -15, 0, +15 approval ratings. One only have to provide some troops if it's below 0, as I noticed. And pop. growth doesn't matter if population is at planet's maximum.)
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RE: Planet population's approval rating - 7/10/2014 5:52:39 PM   
Aeson

 

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As long as you're not at maximum population, you'll see some effect on population growth from the approval rating. I believe high approval worlds will also attract more immigrants from low approval worlds if the high approval worlds are not at maximum population.

I think that the empire's overall approval rating also has a bit to do with the frequency with which your leaders get replaced, especially under governments like Democracy.

(in reply to dhayut)
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RE: Planet population's approval rating - 7/10/2014 5:56:07 PM   
feelotraveller


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As your approval level drops (anything below +17) the compliance to your tax goes down. This is money which disappears from the game (like with corruption) and goes neither to your state finances nor to private finances.

< Message edited by feelotraveller -- 7/10/2014 6:55:56 PM >

(in reply to Aeson)
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RE: Planet population's approval rating - 7/10/2014 6:41:34 PM   
dhayut

 

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quote:

ORIGINAL: feelotraveller

As your approval level drops (anything below +17) the compliance to your tax goes down. This is money which disappears from the game (like with corruption) and goes neither to your state finances nor to private finances.

Is there any paper where it is explained in detail?
(I wish to learn optimal tax level where it yields maximum tax output, whether it gives +15 or 0 or -15 approval rating.)

And by the way, is there any impact of tax and approval levels to colony development?


quote:

ORIGINAL: Aeson

<...> I believe high approval worlds will also attract more immigrants from low approval worlds if the high approval worlds are not at maximum population.
<...>

Am I correct, high tax and low approval level will lead population of overpopulated home world migrate to newly-acquired colonies (which have 0% tax)?


(in reply to feelotraveller)
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RE: Planet population's approval rating - 7/10/2014 8:40:08 PM   
Aeson

 

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quote:

Am I correct, high tax and low approval level will lead population of overpopulated home world migrate to newly-acquired colonies (which have 0% tax)?

Yes.

quote:

Is there any paper where it is explained in detail?
(I wish to learn optimal tax level where it yields maximum tax output, whether it gives +15 or 0 or -15 approval rating.)

I doubt that there is any thread that goes into enough detail to see that. I would nevertheless assume that the effective tax rate is (tax rate as a decimal)*(compliance as a decimal).

The most detailed thread I know of on the economy is this one, but be warned that it's old and may be outdated:
http://www.matrixgames.com/forums/tm.asp?m=2968435

Pulling the relevant equation out of that (the colony revenue equation), the tax revenue from a colony would be:
   Tax Revenue = (population * (planet quality - 50%) * (planet development level) * (1- corruption as a fraction) * (1 + bonuses as a fraction) / scale factor)
                 *(tax rate as a decimal)*(compliance as a decimal)

Compliance is related to approval as:
   Compliance_% = 100% - max(0, 17 - CurrentApproval)*1%

though approval's relationship to the tax rate is not something I can tell you. Thus, a colony at 16 approval has a compliance of 99%, a colony at -5 approval has a compliance of 78%, and a colony at 10 approval has a compliance of 93%.

I will warn you that I am not certain that this is how the tax rate is affected by compliance, but I don't see a more sensible way to combine the two than to multiply them together.

(in reply to dhayut)
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RE: Planet population's approval rating - 7/10/2014 10:07:48 PM   
Airpower

 

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quote:

ORIGINAL: dhayut
Am I correct, high tax and low approval level will lead population of overpopulated home world migrate to newly-acquired colonies (which have 0% tax)?


Based on what I have seen, yes. This is also backed up by the in-game encyclopedia entry for migration (I think). Not that the encyclopedia is an authoritative source... but it's a source.

(in reply to dhayut)
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RE: Planet population's approval rating - 7/10/2014 10:10:37 PM   
Airpower

 

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quote:

ORIGINAL: Aeson

   Tax Revenue = (population * (planet quality - 50%) * (planet development level) * (1- corruption as a fraction) * (1 + bonuses as a fraction) / scale factor)
                 *(tax rate as a decimal)*(compliance as a decimal)


Whoa... so when planets below 50% quality increase their development level, the amount they take from the empire actually increases? Meaning a well-developed low-quality planet costs more than an undeveloped low-quality planet?

(in reply to Aeson)
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RE: Planet population's approval rating - 7/10/2014 11:59:16 PM   
radwyn

 

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Where do I see approval on the screen?

(in reply to Airpower)
Post #: 8
RE: Planet population's approval rating - 7/11/2014 2:06:01 AM   
Aeson

 

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That is the conclusion that would be drawn from the equation given by the linked thread, yes. However, the equation does not appear to accurately predict the colony revenue at less than 50% planet quality, as the colony revenue at that point increases with increasing development, rather than decreasing as the equation predicts. It also appears to have issues at qualities close to 50%.

Still, using a scaling factor of 16, the equation appears to provide a reasonably accurate estimate of the colony revenue for colonies whose quality is greater than 50%, with a maximum error of 26%, average (mean) error of 5.1% and median error of 1.6% for 13 colonies with qualities greater than 50%. Please note that this is a rather small sample size to use if you're going to say "this equation is good" or "this equation is bad." There were two abnormally high errors (26% and 23%), which occurred for a 52% and a 53% quality world, respectively. A 54% quality world had an error of 2.6%, and a 50% world not included in the average error computation had an error of 100% (because the GDP of the planet was nonzero, unlike what is predicted by the equation). The error was generally around 1-2% for the other colonies. As a result, I'd say that the equation given in that thread is a good starting point, but needs work if it is to be used to compute colony revenues for worlds with qualities below 54%.

Also, in case the first paragraph was not clear, colony revenue becomes less negative as colony development increases, if the colony's quality is under 50%. A 30% quality colony went from a revenue of -10K at 20% development to -8K at 50% development.

A further note - if the general form of the equation given in the linked thread for colony revenue is correct, and the equation given in the maximum planetary population thread is also of the correct form, then the worst possible quality for any given planet size is thirty three and one third percent (~33.3%), as the cubic equation which results from combining the equation for maximum population size and the colony revenue equation given above has a local minimum with respect to planet quality at that quality level. Very low quality worlds, say less than 15-20% quality, and barely low quality worlds, say greater than 40%, will cost you less when fully populated than worlds with qualities close to 33%. This is supported by Osito's thread on colonizing low-quality planets, which suggests that the formula given by Jeeves in the above-linked thread is at least of the correct form even if not all of the details are correct.

quote:

Where do I see approval on the screen?

Approval is the number beside the smiling/straight/sad/angry face in the details box in the lower-left corner of the screen. It can also be seen in the list of colonies in the approval column, or in the list of colonies by selecting the colony and looking at the population tab.

< Message edited by Aeson -- 7/11/2014 3:17:26 AM >

(in reply to Airpower)
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