I asked the guy at the corner bookstore if it was zero sum, and he said no. Then he offered to sell me an Econ 101 textbook, but I got it on Amazon for 1/2 the

I asked the guy at the corner bookstore if it was zero sum, and he said no. Then he offered to sell me an Econ 101 textbook, but I got it on Amazon for 1/2 the price. We both wonder how many shops have been wiped out. I also wonder how many online businesses have been created. I work with many online vendors who sell on Amazon that would not have been viable if they had to open a brick and mortar retail location.