Explain plz

Question 15 (1 point) In the two-sided search model, an increase in productivity ( a) shifts v(Q) down, increasing Q and j. ( b) shifts v(Q) up, increasing Q and decreasing j. ( c) shifts v(Q) down, Od) shifts v(Q) up, decreasing Q and increasing j. O e) None of the above Question 16 (1 point) An increase in real dividend income minus taxes represents ( a) a pure income effect. ( b) a combination of income and substitution effects. c) an income effect that is greater than the substitution effect. O d) a pure substitution effect. O e) None of the above