Answer whether each of statement is T,F,or uncertain with explanations

1. Label each of the following statements true, false, or uncertain. Explain briefly. a. The marginal propensity to consume (MPC) can theoretically have a value of more than 1. b. If all the exogenous variables in the IS relation are constant, then a higher level of output can be achieved only by lowering the interest rate. C. The IS curve is downward sloping because goods market equilibrium implies that an increase in taxes leads to a lower level of output. d. If government spending and taxes increase by the same amount, the IS curve does not shift. e. If the nominal money supply rises from $400 billion to $420 billion and the price level rises from an index value of 100 to 102, the real money supply rises. f. The national income identity implies that budget deficits cause trade deficits. g. Exports will increase when domestic demand (demand by domestic economic agents) increases. h. When output is in equilibrium (Demand for domestic goods = domestic output) does it always lead to trade deficit? If yes, why? If not, under what condition the trade balance is deficit? (hint: draw the relation between trade deficit and equilibrium in open economy goods market)