그렉 에이벌 Berkshire Hathaway 68% 투자 집중, 미국익스프레스가 눈길
It runs a closed-loop network, meaning it issues the cards, processes the payments, and serves the merchants all at once, so it earns a fee...
미국익스프레스 투자 전략
총 1개 게시물
총 1개 게시물
It runs a closed-loop network, meaning it issues the cards, processes the payments, and serves the merchants all at once, so it earns a fee...