In this book Ariel Ezrachi and Maurice Stucke take a hard look at today's app-assisted digital shopping. While consumers reap many benefits from online purchasing, the sophisticated algorithms and data crunching that make browsing so convenient are also changing the nature of market competition,...

In many markets insurers are barred from price discrimination based on con- sumer characteristics like age, gender, and medical history. In this paper, I build on a recent literature to show why such policies are inefficient if consumers differ in their willingness-to-pay for insurance...