Walkers, Workers, Wages and Taxes

In this section

Walker distances: How far will a diviner walk? How come half of my block doesn't get herbalist coverage?
Walker speeds: How fast can my warehouse deliverymen get goods?
Workers & Wages: How many workers do I get when I set the wages to 'low'? How much do I pay each worker per year?
Taxes: I have taxes set at 'high', how much tax do I get per year?