Population modifier idea -- penalty for low population

[Trachmyr]

One BIG problem with using "negative" modifiers for low population: The modifiers for happiness and racial traits are cummalitive! That means if you have only a 10% production rate, and are sufferring -20% due to unhappiness and another -10% due to racial traits... you'll be producing at -20%, that means the more facilities you have the greater it will COST you. I tried this, but had to alter the values to make sure that the combintaion of lowest Population modifer + worst happiness penalty + lowest Racial trait = 0%