2. Consider the following 2-period model of household utility maximization. A household with logarithmic utility from consumption and a quadratic disutility of work maximizes log(C,) + B log(C2) -(L,) - B(L,' , 01. C. Briefly indicate (in words) what are the income and substitution effects of an increase in I, on consumption and labor suppy in the two periods. It is enough to answer intuitively and state why the income or substitution effect on each endogenous variable is negative, positive, or zero