By far the richest and most powerful regional economy within Guatemala, Guatemala City is the largest market for goods and services, which provides the greatest number of investment opportunities for public and private investors in all of Guatemala. Financing for these investments is provided by the regional private banks, as well as by foreign direct and capital investment, mostly from the United States. Guatemala City's ample consumer base and service sector is represented by the large department store chains present in the city, among them Siman, Hiper Paiz & Paiz (Walmart), Price Smart, ClubCo, Cemaco, Sears and Office Depot.