Final answer:
The short-run aggregate supply curve will be upward sloping if menu costs were eliminated, due to wage price stickiness and slow wage adjustment by firms.
Step-by-step explanation:
The short-run aggregate supply curve will be upward sloping if menu costs were eliminated. This is because of wage price stickiness and slow wage adjustment by firms. Wage price stickiness refers to the resistance of wages and prices to adjust quickly to changes in demand or supply.