Ever wondered how to manage your commerce succesfully dividing it out between your treasury, science funding, and happiness while crippling the AI's? If we had more extensive sliders than this will all be a breeze... "Yeah, I want to put 2% of my commerce into research.. and the other 98% into my treasury," but instead where stuck with intervals of 10. So...

I'll tell you how to effectivly manage your commerce...

The Basics:

Commerce points:
1 commerce point = 1 gold.
1 commerce point = 1 "research tubes"
1 commerce point = 1 happy citizen (not sure 100% about this as I hardly use the happiness slider)

Note: Read Ronalds The very basics on micromanagment (http://forums.civfanatics.com/showthread.php?s=&threadid=51988) for more on how to manage your cities most effectivly.

Note: Read Crackers How to improve your opening (http://forums.civfanatics.com/showthread.php?s=&threadid=31014) for even more information on managing your cities effectivly.

Commerce in the World:
Desert w/ saltpeter or incense: 1 commerce
Desert w/ oil: 2 commerce

Plains w/ horses or wines: 1 commerce
Plains w/ ivory: 2 commerce

Grassland w/ horses or wines: 1 commerce

Tundra w/ furs: 1 commerce
Tundra w/ oil: 2 commerce

Flood Plain: Has no lux/resource bonus's

Hills w/ horses or coal or saltpeter or wines or incense: 1 commerce
Hills w/ gold: 4 commerce

Mountains w/ saltpeter or coal: 1 commerce
Mountains w/ gold or gems: 4 commerce

Forest w/ furs or dyes: 1 commerce
Forest w/ spices or ivory or rubber: 2 commerce
Forest w/ silks or uranium: 3 commerce

Jungle w/ coal or dyes: 1 commerce
Jungle w/ rubber or spices: 2 commerce
Jungle w/ silks: 3 commerce
Jungle w/ gems: 4 commerce

Note: A tile next to a river receives a +1 commerce bonus.

Note: A roaded tile receives a +1 commerce bonus

Note: Iron & aluminium doesn't give any commerce bonus's

Commerce: What is it used for?

Commerce is the most important componant in the game. Without it you would not beable to make gold or research technologies.

The Commercial Civilization:

Alot of people underestimate the power of a commercial civilization. I've heard many times "It just makes a 4 gpt differance... and you hardly even notice it." Actually they do not make a 4gpt differance. A well-run commercial civilization could make a good 20+gpt differance. A commercial civilization has two advantages:

1) Cities with larger populations produce extra commerce.
2) Corruption levels are lower.

This allows commercial civilizations to hold larger empires, research faster, and still make more gold. This ability is often under-valued as it is hardly noticable and it builds up over time slowly.

Commercial Civilizations
Rome (also militaristic)
Greece (also Scientific)
Japan (also religious)
Carthage (also industrious)
France (also industrious)
England (also Expansionist)
Spain (also religious)
Korea (also Scientific)

[SIZE=1]Note: I have not added the Conquests Civs yet[/I]

Research:

General Details on research:

1) Research can not take longer than 40 turns.
2) You can not research faster than 4 turns.
3) The cost of a empty technoloy depends on the map size. The example used below is with the 256 empty cost (huge map). (See Alexman's What will the AI research next? (http://forums.civfanatics.com/showthread.php?s=&threadid=45559) for more info)

Researching:

The research slider in the domestic advisor window sets how many commerce points you want to turn into "research tubes." If you are currently producing 256 commerce points and have your research set to 40% you will be turning 102 commerical points into "research tubes." This means that you could research an empty technology in 4 turns (note penality listed above).

Note: This is with no corruption. Most games WILL have corruption. So 40% of 256 will not nessacrialy be 102... it would be less. [SIZE=1](See Alexman's Do you think you understand corruption? (http://forums.civfanatics.com/showthread.php?s=&threadid=19922) for more on corruption.)

Note: A Scientist produce's one "Research tube." so one scientist might have little effect on your rate, but alot of them can make a differance.

Treasury:

Your treasury is how much gold you are making & how much you have. 1 commerce point = 1gpt. If we take the example from last time and say we are turning 60% of 256 into gpt we will be making 154gpt.

Marketplaces and banks can increase your treasury tremedously. As most people have there research lower than there tax rate at the time banks/marketplaces come along, they give a big boost... a bigger boost much more noticable than libries and unversities give research.

Note: As before this is without any corruption. Also as noted before that in most games there will be corruption. (See Alexman's Do you think you understand corruption? (http://forums.civfanatics.com/showthread.php?s=&threadid=19922) for more on corruption.)

Note: Marketplaces & banks DO NOT increase your research rate. They add 50% to your treasury ONLY.

Note: A tax collector produces 1gpt.

How to cripple AI research:

The Better Deal:

Trade the AI a lump sum of say 3001 gold for 150gpt. The deal will last 20 turns so technically you will be getting (150*20=3000) 3000 of that gold back... give them the extra 1 gold to make sure they accept the deal. As you may know... The AI will move it's slider to where it is making an even amount of gpt/research tubes. This will decrease the AI research allowing you to take a lead (and with the 150gpt you just got... you should be doing pretty good ;)). If you wait a turn you could even repeat the process with less money (as the AI prolly won't be making as much as last time).

The AI MIGHT declare war on you to regain lost gpt.

Note: 150gpt is just an example. Most AI's won't be making 150gpt and at the most will be making about 20gpt. So you make an offer for 401g for 20gpt.

There is more to come, I'll keep constantly updating this as I have time. Expect more soon! ;)

Few corrections and/or other observations:

Techs can cost more than 256 beakers. 256 is just a value that is being used for how much the AI has a desire to research that tech. For finding the true value of a tech, you should use Grey Fox's tech calculator, which you can find in the utilities forum of CFC. Tech value is based on map size, difficulty level, and whether anyone else already knows the tech.

Marketplaces, banks help research indirectly. They give you more money, to allow you to run your research at a higher rate, and/or have money to buy things. Marketplaces should be built anyways for the happiness. But yes, if you run +50% science or higher you may want libraries/universities as a higher priority, but you should still build the marketplaces. Marketplaces/banks multiply the uncorrupted gold you are devoting to the tax rate, and libraries/universities multiply the uncorrupted gold you are devoting to the science rate.

The buildings (libraries/banks) multiply the uncorrupted gold/beakers, so you should look at how much uncorrupted gold a city is making to know whether the improvements are worth it. And commercial civs, since they have less corruption, the few extra gold that each city is getting is being multiplied by the buildings, making commercial more powerful. Courthouses help, because if you recover just 3 gold, then that 3 gold gets multiplied by the buildings (if you have them all), and it effectively becomes 6 gold.

Specialists (taxmen, scientists) do only produce 1 gold/1 beaker, but this is immune to corruption, and they do not get the multiplication of the buildings. So it may be beneficial to use specialists in high-corrupt cities, but not in your 'core' cities, unless there are no other tiles to work of course.

Originally posted by Bamspeedy
Few corrections and/or other observations:

Techs can cost more than 256 beakers. 256 is just a value that is being used for how much the AI has a desire to research that tech. For finding the true value of a tech, you should use Grey Fox's tech calculator, which you can find in the utilities forum of CFC. Tech value is based on map size, difficulty level, and whether anyone else already knows the tech.

Marketplaces, banks help research indirectly. They give you more money, to allow you to run your research at a higher rate, and/or have money to buy things. Marketplaces should be built anyways for the happiness. But yes, if you run +50% science or higher you may want libraries/universities as a higher priority, but you should still build the marketplaces. Marketplaces/banks multiply the uncorrupted gold you are devoting to the tax rate, and libraries/universities multiply the uncorrupted gold you are devoting to the science rate.

The buildings (libraries/banks) multiply the uncorrupted gold/beakers, so you should look at how much uncorrupted gold a city is making to know whether the improvements are worth it. And commercial civs, since they have less corruption, the few extra gold that each city is getting is being multiplied by the buildings, making commercial more powerful. Courthouses help, because if you recover just 3 gold, then that 3 gold gets multiplied by the buildings (if you have them all), and it effectively becomes 6 gold.

Specialists (taxmen, scientists) do only produce 1 gold/1 beaker, but this is immune to corruption, and they do not get the multiplication of the buildings. So it may be beneficial to use specialists in high-corrupt cities, but not in your 'core' cities, unless there are no other tiles to work of course.

Ok, Thanks... I'll make the adjustments when I go to add more later tonight.

Very nicely done. I await even more pearls of wisdom.

I updated it with the commerce bonus's certain luxs/resource's give terrian.

Also... WildFire is taking some screenshots of a game for I can make a short tuturial and show some examples. I plan on making the tuturial on a free website to save room on this page (and loading time).

Hm... This sounds like exploiting AI bug.

Dude, with your 'cripple AI research' stradegy, the AI will have 3000 cash. That might prevent them to research less.
Also I don't agree 'most AI will make at most 20 gpt.' First, AI can make thousands per turn, second, 20 gpt won't cripple their research.
You may also add info about Colossus and Newton's etc.
You may also add info about how to upkeep buildings and Smiths' comapanies. I always thought the upkeep is taken from the city itself, but in fact it's taken from your treasury.

This article sure is an ambitious undertaking, there are so many things to be mentioned! :)

Some more stuff to add to the things others have suggested:
1) Forbidden Palace. Doubling your number of productive cities outweighs the commercial attribute, courthouses, and even government as a factor. I think it is the largest single factor.
2) Government. Despotism vs. Monarchy vs. Republic/Democracy.
3) Harbors (and later on Commercial Docks.) Harbors can turn low productivity cities into strong commercial centers.
4) RCP.
5) Trade. Trading things which don't cost you anything and don't help your rival much is often an easy way to improve commerce.
6) Sell unwanted improvements. When capturing cities and they're corrupt, sell stuff you don't want. E.g. a Bank. It may seem harmless to keep but its upkeep drains your treasury.
7) Wall Street. Gains a free 50gpt after the 20 turns it takes to pay back the nest egg.

Re "Commerce is the most important componant in the game.":
To me this seems an overstatement. Very important, yes. Most important? I'd rate food as more important much of the time. Shields as important some of the time. Culture occasionally as important. Of course to some degree you can convert commerce to shields and culture but the exchange rate is painful, and the reverse is true for shields anyway, and to some degree is true even of beakers (described further below.)

Re "As most people have there research lower than there tax rate at the time banks/marketplaces come along, they give a big boost... a bigger boost much more noticable than libries and unversities give research.":
I'm not sure the first part of this statement is true. Sometimes I have research at zero at that part of the game, other times at 100%, other times inbetween. I really don't know about most people, wouldn't assume an answer to that. Regardless of the answer, as Bamspeedy noted Marketplaces and Banks help research indirectly. Note that the other way around is also true: Libraries and Universities can help commerce! With these improvements you can research a tech in the same number of turns with a lower research setting, and that lets you accumulate more commerce as a result. Overall I don't think a hard and fast rule about the relative values of these improvements for commerce is possible. I think it depends on the game situation, your goals, and how you plan to reach them. I do think one rule of thumb which is true much (not all!) of the time is that Marketplaces come first because they don't just boost commerce - in some cases they boost everything (food, commerce/science, shields) by reducing unhappiness.

Originally posted by Strider
1 commerce point = 1 happy citizen (not sure 100% about this as I hardly use the happiness slider)

A better way to write this would be
1 commerce point = 1 happiness point
1 happiness point turns a unhappy citizen to content or a content citizen to happy.

One of the things that I have not seen posted is the effectiveness of commercial trait on second ring cities when using rcp or third ring.

A size 6 city, that is building an aquaduct, can have a worker made into a specialists while building the aquaduct. This can allow a 40 turn research gambit at minimal cost.

Other times you can move a worker in a size 12 city to a scientist and use that extra food to produce either a 40 turn tech or complete the last turn.

Courthouses reduce corruption and if you are running cash luxaries then this can be as good as a market. A 50% corrupt city can get another happy face just from cleaning up corruption which can allow working another tile.

Originally posted by kb2tvl
One of the things that I have not seen posted is the effectiveness of commercial trait on second ring cities when using rcp or third ring.

A size 6 city, that is building an aquaduct, can have a worker made into a specialists while building the aquaduct. This can allow a 40 turn research gambit at minimal cost.

Other times you can move a worker in a size 12 city to a scientist and use that extra food to produce either a 40 turn tech or complete the last turn.

Courthouses reduce corruption and if you are running cash luxaries then this can be as good as a market. A 50% corrupt city can get another happy face just from cleaning up corruption which can allow working another tile.

You can do both of those, but with consequence's... If you change a worker to a scientist in a size 6 city (that is building an aqueduct) it can do several things:

1. A Scientist produces 1 uncorrupted science "beaker" if you have a worker work a tile that is producing 3 commerce (1 corrupted, 2 non-corrupted) you actually might actually "lose" more than you gain (though this might not be likely)

2. Another thing is you lose the shields/food that worker cause's. That actually shield might mean your aqueduct gets done 2-3 turns earlier.

I'm starting to like the commercial trait. I'd rate it above scientific (on higher levels where I'm not doing any research anyways). It's better than expansionists and some other traits in many (but not all) situations.

I feel it easily makes more than 20gpt than a non-commercial civ. 20gpt extra is probably for standard or smaller maps. It is hard to notice the difference because you can't directly compare one game to the next because of different situations like the terrain and amount of rivers, that is why many think it's near worthless.

4) RCP.

This article was written only 4 days after RCP was revealed, so it really wasn't a widely accepted 'strategy' yet. I still think RCP is an exploit. I certainly wouldn't call it a 'dastardly' exploit like ROP rape, but it still is doing something the programmers did not intend to happen. They did not intend for people to do that to get around corruption. That is why it is fixed in Conquests.

As for using the lone scientist/40 turn gambit, yes the tile the scientist could work makes you lose something (food/shields/commerce), but you can minimize this by finding a situation where that tile being worked wouldn't help you anyways (except for the lost food). If the 6th citizen is bringing in shields and gold that is lost to corruption/waste then he isn't doing any good anyways, so make him the scientist. Also, even if he is causing you to lose 1 shield and 2 or 3 gold, that is better than putting science at 10% and end up devoting 7+ beakers/turn when all you really want is the bare minimum devoted to research. I don't use a scientist until I have at least 10 cities (or a city with happiness problems). Using a scientist too early cuts your growth too much.

Originally posted by Bamspeedy
As for using the lone scientist/40 turn gambit, yes the tile the scientist could work makes you lose something (food/shields/commerce), but you can minimize this by finding a situation where that tile being worked wouldn't help you anyways (except for the lost food). If the 6th citizen is bringing in shields and gold that is lost to corruption/waste then he isn't doing any good anyways, so make him the scientist. Also, even if he is causing you to lose 1 shield and 2 or 3 gold, that is better than putting science at 10% and end up devoting 7+ beakers/turn when all you really want is the bare minimum devoted to research. I don't use a scientist until I have at least 10 cities (or a city with happiness problems). Using a scientist too early cuts your growth too much.

True, it depends entirely on the amount of corruption.

I need to improve this some more also.. maybe list some times when it is better to keep the extra shield then create a scientist... and how to figure that out. I'll get on it.

Originally posted by Strider
Trade the AI a lump sum of say 3001 gold for 150gpt. The deal will last 20 turns so technically you will be getting (150*20=3000) 3000 of that gold back... give them the extra 1 gold to make sure they accept the deal.

Though sucking gpt from the AI is indeed a fine method to criple it, the technique above is quite risky! What if war breaks out?

Strider, this is a brilliant post. Especially all the links! Thanx!

Originally posted by Stapel


Though sucking gpt from the AI is indeed a fine method to criple it, the technique above is quite risky! What if war breaks out?

Strider, this is a brilliant post. Especially all the links! Thanx!

:hmm: Good point... I'll make a note about it above.

Also, Thanks

Once I actually get conquests... I'll update this thread with some of the commercial management tatics for that... might be a month or two though. (Have to run tests and everything... and I have to get use to the game first also.)

Two important changes I noticed in conquests:

-max research time is increased to 50 turns
-scientists produce 3 tubes, taxmen 2 gold

Originally posted by Pfeffersack
Two important changes I noticed in conquests:

-max research time is increased to 50 turns
-scientists produce 3 tubes, taxmen 2 gold

Ok, Thanks... I still haven't got Conquests yet, so your have to give me awhile (anyway, I think I might want to wait intill they fix the two corruption issues intill i get started on it)

In addition to your thread.
"Trade the AI a lump sum of say 3001 gold for 150gpt. The deal will last 20 turns so technically you will be getting (150*20=3000) 3000 of that gold back... give them the extra 1 gold to make sure they accept the deal. As you may know... The AI will move it's slider to where it is making an even amount of gpt/research tubes. This will decrease the AI research allowing you to take a lead (and with the 150gpt you just got... you should be doing pretty good ). If you wait a turn you could even repeat the process with less money (as the AI prolly won't be making as much as last time).

Why not just loan the AI some money with interest. i have used it many times, especially large nations in war are easy targets for some good rates. And to make sure war is not declared simply make another trade, an outdated resource is good.

When playing the harder levels taking your science in a specific direction is a good way to get economy back on track

Thanks for this article I have to try some of the things that you have mentioned.

Originally posted by jesperwh
In addition to your thread.
"Trade the AI a lump sum of say 3001 gold for 150gpt. The deal will last 20 turns so technically you will be getting (150*20=3000) 3000 of that gold back... give them the extra 1 gold to make sure they accept the deal. As you may know... The AI will move it's slider to where it is making an even amount of gpt/research tubes. This will decrease the AI research allowing you to take a lead (and with the 150gpt you just got... you should be doing pretty good ). If you wait a turn you could even repeat the process with less money (as the AI prolly won't be making as much as last time).

Why not just loan the AI some money with interest. i have used it many times, especially large nations in war are easy targets for some good rates. And to make sure war is not declared simply make another trade, an outdated resource is good.

When playing the harder levels taking your science in a specific direction is a good way to get economy back on track

That is pretty much what your doing... is giving the AI a loan to be paid back.

Ok, I'm going to try to do one more test over PTW before I start on Conquests, but I'm going to need some help with it.

Does someone have a save where all the cities are at the max 2 tiles apart? (close-build). I only play where the cities are 3-4 tiles apart so I can compare one of those games to mine to find out the advantage's/disadvantages to both. (and the other differant city-placement strats).

A loan of 3001 gp for 150 gpt is not an equal return.

3001 gp today has far more value than 150 gpt for 20 turns. This is called the Time Value of Money. With 3001 gp, you can buy numerous city improvements and units and obtain the benefit of those purchases for 20 turns. 3001 gp will buy numerous marketplaces, banks, stock markets, etc., with a tremendous increase in income fo 20 turns. If you were to purchase ten extra marketplaces, waiting for 1 turn of production to get the 50% discount and 1 more turn to start getting additional income, would easily produce 10 extra gpt for 18 turns, or 180 gp.

Additionally, loaning 3001 can cost you up to 50 gpt if youhave Wall Street and the loan takes you down to 0 gp in your treasury. If you don't spend any of the 150 gpt you get, it will take 6 turns to get back above 1000 gp in the treasury and get the full benefit of Wall Street. During that time you will have eraned 120 gp in interest from Wall Street, whereas you would have earned 300 gp if you didn't spend your entire treasury, for a loss of 180 gp. Accordingly, even if thinking about this practice, keep 1000 gp.

Lastly, as mentioned, getting a loan of 150 gpt increases the likelihood that the Debtor AI will go to war, since this is the only way to default on a loan in Civ 3 (A realistic improvement would allow a nation the choice of declaring war in the event of a default, with a loss of reputation either way.)

The solution to these two dilemmas, risk and the time value of money, in the real world is interest. (Despite what your credit card companies may think, interest is not intended to equal profits.)

Even a modest 8% interest rate would require 160.77 gpt. Considering the risk of war and default, a more reasonable 15% interest rate would require 170.52 gpt. Even then the extra 410 gp earned, would be offset by the 180 gp loss from Wall Street and 180 gp from lost marketplaces, leaving interest income of only 50 gp over 20 turns, hardly a good return, even if it hamstrings the AI’s research.

Considering that the AI doesn’t amortize loans or take any of the above considerations into account, its unlikely that the AI would ever agree to 170 gpt in exchange for 3001 gp.

Originally posted by edboltz
A loan of 3001 gp for 150 gpt is not an equal return.

3001 gp today has far more value than 150 gpt for 20 turns. This is called the Time Value of Money. With 3001 gp, you can buy numerous city improvements and units and obtain the benefit of those purchases for 20 turns. 3001 gp will buy numerous marketplaces, banks, stock markets, etc., with a tremendous increase in income fo 20 turns. If you were to purchase ten extra marketplaces, waiting for 1 turn of production to get the 50% discount and 1 more turn to start getting additional income, would easily produce 10 extra gpt for 18 turns, or 180 gp.

Additionally, loaning 3001 can cost you up to 50 gpt if youhave Wall Street and the loan takes you down to 0 gp in your treasury. If you don't spend any of the 150 gpt you get, it will take 6 turns to get back above 1000 gp in the treasury and get the full benefit of Wall Street. During that time you will have eraned 120 gp in interest from Wall Street, whereas you would have earned 300 gp if you didn't spend your entire treasury, for a loss of 180 gp. Accordingly, even if thinking about this practice, keep 1000 gp.

Lastly, as mentioned, getting a loan of 150 gpt increases the likelihood that the Debtor AI will go to war, since this is the only way to default on a loan in Civ 3 (A realistic improvement would allow a nation the choice of declaring war in the event of a default, with a loss of reputation either way.)

The solution to these two dilemmas, risk and the time value of money, in the real world is interest. (Despite what your credit card companies may think, interest is not intended to equal profits.)

Even a modest 8% interest rate would require 160.77 gpt. Considering the risk of war and default, a more reasonable 15% interest rate would require 170.52 gpt. Even then the extra 410 gp earned, would be offset by the 180 gp loss from Wall Street and 180 gp from lost marketplaces, leaving interest income of only 50 gp over 20 turns, hardly a good return, even if it hamstrings the AI’s research.

Considering that the AI doesn’t amortize loans or take any of the above considerations into account, its unlikely that the AI would ever agree to 170 gpt in exchange for 3001 gp.

Like I said above, the 3000g vs 150gpt was just an easily calculated example. It will likly me much smaller sums.

Also, let me point out that an increase to the AI's commercial rate can help you as they will have more money to spend on techs/lux's. (of course... it can harm you also). Another thing would be getting the extra 150gpt will allow you to bring your science/lux rate up higher. Also, the AI tends to use the extra money to rush units... not improvements in there cities. This would obviously further damage the AI's economy by the increase in military upkeep (depending on what form of government the AI is in). As far as I know I have never seen any instance's where the AI has rushed any form of improvement and if there is one, I doubt the AI does it often.

Of course the extra units the AI pop rushes can benefit the AI's economy if he uses them to capture your cities (or other AI cities)

Originally posted by edboltz
Of course the extra units the AI pop rushes can benefit the AI's economy if he uses them to capture your cities (or other AI cities)

True, but the AI is extremely bad at launching attacks and they are easily defended off with the right amount of defense. Also, the majority of the time giving a lump sum of gold for a gpt amount will be during the times where you give them 70g for 3gpt. 70g will have little effect on the AI's economy, by time large sums start to be traded most AI's have 3-5 units defending each of there cities, so an attack against another AI will prolly cost them alot also and I would believe a human brian will beable to calculate and counter-attack effectivly.

Does anyone know how city size effects a Commercial civ's commerce, in real numbers? I'm in the middle of GOTM28, trying to dig myself out of a hole, and this might effect my strategy. I've noticed that there's a big jump, once you're a City (ie: pop 7 to 12), is there another big jump once you're a Metropolis (pop 13+)?

As far as I know a Commercial civ gets one additional gold piece from the city centre square of any city greater than size 6. Not a *big* step up! Apart from lower corruption (see Alexman's thread for the formula), that's it. Of course, I may be wrong.

Originally posted by AlanH
As far as I know a Commercial civ gets one additional gold piece from the city centre square of any city greater than size 6. Not a *big* step up! Apart from lower corruption (see Alexman's thread for the formula), that's it. Of course, I may be wrong.

If I'm thinking right (haven't tested) you get +1 commerce for size 6-12 and +2 for 12 and higher.

Originally posted by Strider


If I'm thinking right (haven't tested) you get +1 commerce for size 6-12 and +2 for 12 and higher.

Pretty useless if you play tiny or small maps (to few cities), but when you get into the huge maps and a small empire is 20+ cities, then it has a huge effect.

Originally posted by Strider


Pretty useless if you play tiny or small maps (to few cities), but when you get into the huge maps and a small empire is 20+ cities, then it has a huge effect.
I'm not sure I understand why the number of cities makes a difference. Each city between pop 6 and pop 12 will contribute an additional gpt. If it's already producing 1 to 2 gpt per worked tile then this gives a 10%-ish effect on gross income, however many cities you have. Do we know if this extra gold is reduced by corruption, or does it go straight to the bottom line?

Originally posted by AlanH

I'm not sure I understand why the number of cities makes a difference. Each city between pop 6 and pop 12 will contribute an additional gpt. If it's already producing 1 to 2 gpt per worked tile then this gives a 10%-ish effect on gross income, however many cities you have. Do we know if this extra gold is reduced by corruption, or does it go straight to the bottom line?

+1 or +1 uncorrupted.

The more cities you have the large effect it has, as huge maps our bigger (and tend to fit more cities as such) the effect is more noticable.