The index of absolute risk aversion is given by-.Which utility functions have constantu”(x)absolute risk aversion (where y is a positive constant)?(a))=(b)UG)=yInG)(c)U)=y +yx+yx2(回)U(x)=-e-r(e)All of the aboveSuppose that a firm has production function y(l,k)using two inputs.You derive thata<0.What does this mean?(a)The marginal rate of technical substitution between I and k is negative(b)marginal increases in l and k decrease output(c)a marginal increase in k decreases the marginal product from an increase in I(d)All of (a).(b).and (c)(e)None of (a).(b).and (c)

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