The massive inflow of foreign capital, combined with low interest rates, produced a period of easy credit. And that easy credit especially affected the housing market. Flush with cash, many lenders issued mortgages and many borrowers could not afford them. Financial institutions then purchased these loans, packaged them together, and converted them into complex securities designed to yield large returns. These securities were then purchased by investors and financial institutions in the United States and Europe and elsewhere -- often with little analysis of their true underlying value.