Final answer:
Workers at Brian's Performance Pizza are variable inputs since their numbers can change weekly, while the ovens are fixed inputs due to the lease agreement and spatial constraints.
Step-by-step explanation:
In Brian's Performance Pizza, in the scenario described, the workers are considered to be variable inputs because their number can be adjusted relatively quickly and easily depending on the demand and workload. On the other hand, the ovens that Brian leased are fixed inputs, as their number cannot be changed in the short run due to the space limitations and the lease agreement.
The distinction between these types of inputs is important for understanding how businesses adjust to changing conditions in the short term. Variable inputs like workers and ingredients can be modified to match production needs, whereas fixed inputs such as equipment leases and building space set constraints on the maximum output capacity in the short run.
To put this into the language of economics, we could express the production function as Q = f[L, K], where L represents the variable inputs like workers, and K represents the fixed inputs like the ovens.