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Assume an economy in which the demand for bank loans is given by: = 1000 + 25( )And in which the portfolio preferences of the public generate a supply of bank deposits given by: = 1000 50( )Where is the interest bank charge on loans, the interest rate paid on bank depositsand i is the market interest rate (Interest rates are measured in percentage points so that a rate of two percent is given as 2, not 0.02).The banks hold no reserves and have no other assets and liabilities and incur operating costs of $60 a year for every $1000 of deposits.A. Assuming the banking system is competitive, solve for the loan rate and the deposit rate as functions of the market interest rate and determine the stock of money in equilibrium. (9 Marks)B. Imagine that the banks were now to collude and reach an agreement to set loan rate and deposit rate which maximize the profits of the industry. What loan and deposit rates will they set, what will be the profits of the industry and what will be the effects of this cartel on the stock of money? (11 mar