Will it work to fine people who refuse to wear a mask? - Marketplace

To encourage a certain behavior, policymakers can choose carrots or sticks. There's evidence that the sticks are more effective.

Retail workers increasingly being drawn into the stressful job of mask enforcement - The Washington Post

How to Do Market Research [4-Step Framework]

Mandatory Masks, but Limited Enforcement, at Walmart and Other Stores - The New York Times

Stores want shoppers to wear masks. But some customers refuse

Outrage at Bank Refusing Woman's Money Over Masks Has One Problem

Stores want shoppers to wear masks. But some customers refuse

Arkansas is Latest State to Lift Mask Mandate Despite Officials' Warnings

Nearly a dozen states move to end masking mandates as COVID-19 infection rates fall - ABC News

As Mask Mandates Lift, Retail Workers Again Feel Vulnerable - The New York Times

What authority do businesses have to enforce masking? - Marketplace