Consider the following information for a soccer ball manufacturing firm that can sell as many soccer balls as it wants for $12 per ball. 

a. Fill in all the blanks in the table. 

b. Verify that MRP_L, for this firm can be calculated in two ways: (1) change in TR from adding another worker and (2) (MP_L) times the price of output. 

c. If this firm must pay a wage rate of $320 per worker per week, how many workers should it hire? Briefly explain why.

d. Suppose the wage rate rises to $400 per worker per week. How many workers should be hired now? Why? 

e. Suppose the firm adopts a new technology that increases output at each level of employment by 50 percent and the price of soccer balls remains at $12. What is the effect of this new technology on (MP_L) and on MRP_L? At a wage of $400, how many workers should the firm hire now?

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Number of Workers 0 1 2 2 3 5 6 7 8 9 10 Number of Soccer Balls Produced per Week 20 50 90 I 180 I 280 MPL - T 1 50 1 - 14 - TR I - T 1 2,520 - - - MRPL 1 336 216 -