Which tactic is used in aggregate planning to temporarily increase capacity without hiring?

Back-ordering refers to the practice of accepting orders for products that are not currently in stock, with the understanding that they will be fulfilled at a later date. While this allows for continued sales during shortages, it does not increase capacity; rather, it delays fulfillment and may lead to customer dissatisfaction.

Pricing promotions involve temporary reductions in price to stimulate demand and encourage sales. While this tactic can increase sales volume, it does not enhance capacity or production capabilities. Instead, it may strain existing resources if demand spikes unexpectedly, without providing a sustainable solution to capacity challenges.

Safety-stock build-up is the practice of maintaining extra inventory to buffer against demand fluctuations and supply chain uncertainties. However, this tactic does not directly increase production capacity; it merely helps manage existing inventory levels to meet anticipated demand.