Using the Ramsey-Cass-Koopmans Model, what policy would best improve the economic development of a country? 1) to encourage its citizens to save 2) to gift/aid the country with items that support its production capacity (machineries, harbours, ..) 3) to encourage/transfer know-how and productivity on how to extract outputs from inputs (R&D, patents, institutions, ..) Draw graphs and use mathematical derivations to interpret each of the above policies in the Ramsey Model..