Indicate whether the following statements are true, false or uncertain. In each case you must provide a brief explanation for your answer. (Marks are only given for your explanation if your answer is correct.) Consider the following model of the IS curve without an international sector: Consumption: C/Y = b (R F), b > 0; - Investment: / =; b;(R F), b > 0; and - Government expenditure: G = . With this formulation, the IS curve is less steeply sloped than the "standard" IS curve.