In the game evony how much resource production bonuses do you get for each point of hero politics?

In the absence of an exact calculation formula, the most relevant method of testing this is by entering the town hall, production tab and recording the "hero bonus" for each resource. Once this is established, enter the Feasting Hall and select "Appoint Mayor" to change the mayor to a different "politics" skill point hero and then return to the town hall production tab and compare the bonus.