Speed of Building

[JMK]

My final statement after all this confusion:

Mobilization *can* speed up building time because it adds up to 21 shields to a city's output because of the Mobilization bonus. It does *not* make buildings cheaper. However, you *can* construction buildings quicker.

It is where the confusion came.
Mobilization allows you to build MILITARY UNITS faster but it dos NOT allow you to build construction buildings or other units faster.
The bonus you get when going into mobilization does not work for military buildings; you won't be able to build new cultural building during mobilization.
The following comes from CIV info center.
Mobilization: Another benefit of Nationalism is the ability to mobilize your civilization for war.
When a Civ is mobilized for war, all cities building a military unit produce one extra shield in every square that is already producing at least one.
However, a mobilized Civ may only build military units and military city improvements, and may not build peacetime improvements.
Mobilization can be changed from the domestic advisor screen.
You need to end all your wars to get out of mobilization. If you enabled it during peace time you will have to start a war to get out of it.

 

[punkbass2000]

JMK summed it up very well; both conciely and comprehensively.

 

[Ginger_Ale]

Yes, I was drawn back to this thread...

Also, culture buildings produce half their culture per turn.
And, the shield bonus does not apply to artillery units.

Now, to get back on track of the topic of Speed of Building.

 

[Tomoyo]

Speed of Building

Things get built quicker when you hurry them...