Valerie is in the business of selling toys. She has noticed that the sale of toys increases on long holiday weekends. She has instructed her staff to work for extra hours on these days to manage the...

Valerie is in the business of selling toys. She has noticed that the sale of toys increases on long holiday weekends. She has instructed her staff to work for extra hours on these days to manage the demand. What strategy is Valerie using to adjust her capacity to the demand?