Does this book dive deep into medieval economics? I would really like to simulate a somewhat advanced approach on the flow of goods and currency between the upper and lower classes…
$30 definitely isn't much for a niche book, I would've preferred a short preview or a longer brief.
As an aside, an idea I find underrepresented is gift economies[0]. There's some representation of it in the form of `goodwill` and `relationships`, but this was [likely] a huge part of the economy. Consider the consumption of the average person, and it's going to be more fish and eggs and less MacBooks, and you wouldn't be buying eggs the same way you buy them on the market today[by barter or trade]. You would be definitely using currency for the highly specialized armor, though.
All of this doesn't matter too much in the grand scope, it's perfectly fine to trade 2 shoes for 5 eggs in Skyrim, but some additional depth would be interested if incorporated correctly.
The Time Traveller's Guide to Medieval England goes into some detail about logistics and the flow of goods, how town markets operated to distribute goods to people in remote areas, and the role of cities and towns.
I don’t know how much detail you’re looking for, but it’s a fascinating look at daily life for the lower classes
I enjoyed the "Medieval Demographics Made Easy" (as well as other materials from John Ross). It is a 6-page article made for GMs to aid in crafting believable medieval worlds. It's not enough on its own for your needs but it touches on relevant topics with just the right amount of details.