It's on monetary economics. I really need help

In the context of National Income Accounting and the Intertemporal model: Consider a country "smartville" with a closed economy real rate of interest of 3% while the prevailing world interest rate is 1.5%. Use the metzler diagram as a framework to critically evaluate the likely outcomes for the "smartville" economy. In your answer refer to the current account balance, savings and investment, comparative advantage, and discuss how "smartville" might gain from opening up to trade with the rest of world in this context