D. With which unit of labor does diminishing marginal returns kick in.

E. What is the optimal number of units of labor to employ? What information is needed to make that decision?

F. Would you hire the 6th unit of labor? What about the 5th unit of labor?

Consider a firm that produces birthday cakes. The firm is operating in the short run and some factors of production are fixed, assuming the firm can vary the number of workers in the factory. The following shows the productivity of each worker (per day). A. Complete the chart's second column B. Graph the 1st column on the horizintal axis and the 2 nd column on the vertical access. C. The negatively sloped portion of the short-run production function in #2 is explained by and the positively sloped portion of the curve is explained by