short run
[short run|short run] refers to a period of time in which at least some factors of production are fixed.
Definition
short run refers to a period of time in which at least some factors of production are fixed. It is characterized by the presence of fixed factors, which limits the ability to adjust all inputs. The concept is used to describe a timeframe where certain production elements cannot be changed.
Mechanism
short run The long-run average cost curve represents the relationship between output and cost when a firm can adjust all inputs, including fixed costs. In the short run, firms face constraints on adjusting certain inputs, which influences their cost structure. The firm's ability to choose fixed costs in the long run allows it to select different short-run average cost curves. This flexibility enables the firm to optimize production levels based on varying cost conditions. The short-run average cost curve reflects the firm's cost structure under fixed input constraints.
Effects
short run The long-run average cost curve incorporates short-run average cost curves, each representing a specific fixed cost level. Firms can select different fixed cost levels to achieve desired short-run average costs. This allows the long-run average cost curve to reflect varying short-run cost scenarios. The relationship between long-run and short-run costs determines the shape of the long-run average cost curve. Selecting optimal fixed cost levels influences the firm's ability to minimize long-run average costs.
Constraints
In the short run, short run firms are restricted to a single average cost curve due to fixed costs. This limitation prevents them from adjusting fixed costs in the short term. Long run allows firms to vary all costs, enabling operation on any average cost curve. The constraint of fixed costs in the short run defines the operational boundaries. Firms cannot alter fixed costs during this period, limiting their cost adjustment options.
Effects on Long-run Average
short run average cost curves form the basis of the long-run average cost curve. Each short run curve corresponds to a specific fixed cost level. The long-run average cost is determined by selecting the most efficient short run curve for each output level. This relationship shows how varying fixed costs affects long-run average cost. The group of short run curves actually defines the shape of the long-run average cost curve.