Author: CNN BUSINESS' DANIELLE WIENER-BRONNER

Shoppers are propping up US economy

1. Negative feedback loop: The American shopper — the MVP of the national, if not the global, economy — is suddenly showing signs of fatigue.

Wells Fargo CEO apologizes for service outage

Wells Fargo CEO Tim Sloan has apologized for "the inconvenience" to both customers and employees following a service outage that kept account holders from accessing their funds on Thursday.