 The highly centralized government structure set up by Tugwell, one of President Franklin Delano Roosevelt's Brain Trusters required such a fiscal agent, contrary to the model followed by most states, in which each agency and political subdivision is responsible for issuing its own bonds.During its formative years, the GDB helped financially structure the Puerto Rico Water Resources Authority, the new publicly owned electric company that generated much of its power from a hydroelectric system.During its first decade, GDB financed infrastructure development, particularly the development of low-cost housing.