Is a virus going to spread equally fast in a sparsely populated area vs a densely populated area?

Isn't there implicit knowledge going into two of those? 100 cases in the Yukon territory feel less likely to infect other areas than 100 cases in NYC. For the global economy, you'll also want additional data, e.g. how relevant to the global economy is that area, how many people are working there, is is the working population that's affected or is it primarily old people etc.