In Europa Universalis II, a country's production efficiency is a number which abstractly quantifies how advanced its goods production is. Production efficiency is used in the computation of production income. It is also a small factor in computing the chance of successful colonization.

Production efficiency (abbreviated PE) is determined based on a country's infrastructure technology and domestic policies, and a few other factors. The base level of production efficiency is a function of the country's infrastructure technology level:

Infra	Base Production     
Level	Efficiency  
0	20%
1	25%
2	30%
3	35% 
4	40%
5	50% 
6	60%
7	70%
8	80%
9	90%
10	100%

Then the following modifiers apply:

Production efficiency cannot be lower than 0%, but it can rise above 100%.

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