Hello Maester Steven! You were recommended by Joanna. What would each region of Westeros trade in? in your opinion? (Like Reach=Agriculture)

I discuss this in my series on economic development, but the World of Ice and Fire does give us a foundation on what goods the various kingdoms trade in: the North exports lumber, the Riverlands cattle, the Vale grain and marble, the Iron Islands iron and tin, the Westerlands gold and silver, the Reach wine and grain, the Stormlands lumber and amber, and Dorne produces olives.

Now, there are clearly some simplifications and omissions there: it can’t possibly be the case that only the Iron Islands produces iron because otherwise other regions couldn’t have shifted over to the Iron Age and the Iron Islands would have been much richer; we know that the North exports wool and the south (probably the Reach) exports linen; we know that the Vale produces pumpkins and fruit as well as cereal crops; we know that the Reach has mines and mills as well as farms; we know that Dorne produces peppers, citrus fruits, wines, silks and satins as well as olives.