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GDP divided by the capital stock gives the O average output of capital O marginal return of capital O marginal product of capital O productivity of capital O marginal efficiency of capitalInvestment's share of GDP, y, is a(n) economic variable. O procyclical O acyclical O countercyclical O independent O randomSuppose an economic downturn has reduced demand for scooters produced by rm XYZ. In response to the lower demand, XYZ closes one of their assembly plants. XYZ has decided to O consume their xed capital 0 reduce their productivity of capital 0 scrap their capital 0 outsource their capital The _ growth rate for the U.S. is the average GDP growth rate for the United States over some period of time. 0 real 0 aggregate O trend 0 stylized