1.Product Life Cycle Model 11-4 Sales and Profits ($ Sales Profits Time→ Product Introduction Growth Maturity Decline Development Stage Sales and Profits Over Losses/ the Product's Life From Investments($) Inception to Demise 制卧价策易大考 国际商学院市场营销学系1. Product Life Cycle Model Time Product Development Stage Introduction Profits Sales Growth Maturity Decline Losses/ Investments ($) Sales and Profits ($) Sales and Profits Over the Product’s Life From Inception to Demise 11 － 4 11 － 4