![Working Papers](https://mackinstitute.wharton.upenn.edu/wp-content/uploads/2016/06/Working-Paper-150x100.png)
The product life cycle, or time path of sales, of many high-tech goods and services is bell-shaped. I show that product life cycles endogenously arise in markets with rapid technological innovations, are heterogeneous across products, and are affected by the level of market competition.…Read More