Final answer:
False. Product life cycles are shorter now than twenty years ago due to technological advancements and changing consumer preferences.
Step-by-step explanation:
The statement that product life cycles are longer now than twenty years ago is False. Product life cycles refer to the stages through which a product passes from introduction to decline. Technological advancements and changing consumer preferences have led to shorter product life cycles. Innovations and updates in technology have made it easier for manufacturers to introduce new products more frequently, resulting in shorter life spans for existing products.