Crystal's Performance Pizza is a small restaurant in Detroit that sells gluten-free pizzas. Crystal's very tiny kitchen has barely enough room for the four ovens in which her workers bake the pizzas. Crystal signed a lease obligating her to pay the rent for the four ovens for the next year. Because of this, and because Crystal's kitchen cannot fit more than four ovens, Crystal cannot change the number of ovens she uses in her production of pizzas in the short run. However, Crystal's decision regarding how many workers to use can vary from week to week because her workers tend to be students. Each Monday, Crystal lets them know how many workers she needs for each day of the week. In the short run, these workers are inputs, and the ovens are inputs.

Crystal lets them know how many workers she needs for each day of the week.In the short run, these workers are Variable inputs, and the ovens are Fixed inputs.

Explanation:

Production function of  a product defines the  relationship between the quantity of inputs required to produce a good and the quantity of output produced by the given inputs.

The Commonly  used inputs in production are land, labor, and capital.

Fixed Input: Fixed input are those inputs whose quantity does not change with the quantity of the output produced

Variable Input: Variable input are those type of input whose quantity varies with the quantity  of the output produced.

In the above question we can see that

Crystal's decision regarding how many workers to use can vary from week to week because her workers tend to be students.The workers are the variable inputs.

Crystal's kitchen cannot fit more than four ovens, Crystal cannot change the number of ovens -The  ovens are the fixed Input

answerboth the short run phillips curve and the aggregate demand and aggregate supply model