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2. Assume supply and demand are defined as follows and that all the A and B valu

ID: 1137069 • Letter: 2

Question

2. Assume supply and demand are defined as follows and that all the A and B values are defined as in class: Qs -BSP-As A. (1 Point) Assume supply and demand both increase. Without any further information about the changes to the A and B values in the problem, economists would typically say that the equilibrium is indeterminate. Circle one to ill n the blank. PRICE QUANTITY B. (2 Points) State the equilibrium price and quantity as functions of the given exogenous (or independent) information in the system.

Explanation / Answer

(a) Without any further information about the changes to the A and B values in the problem, economists would typically say that the equilibrium price would is indetermminate.

(b) Qd= Ad -BdP

Qs= BsP - As

At equilibrium Qd= Qs

Ad- BdP= BsP- As

Ad+ As= BsP+ BdP

Ad +As = P(Bs + Bd)

P= (Ad + As)/ (Bs+Bd) [Equilibrium price]

Q= Ad - Bd[(Ad+As)/ (Bs+Bd)] [Equilibrium quantity]