Explain the concept of an aggregate production function. How would you expect the production function in Figure 3-1 to be affected by an increase in the average and marginal productivity of labor for...

Explain the concept of an aggregate production function. How would you expect the production function in Figure 3-1 to be affected by an increase in the average and marginal productivity of labor for a given output level, owing, for example, to increased education of the labor force? How would such a shift in the production function affect the levels of output and employment in the classical model?