More TopicsThis copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.ConsumerEarnings PreviewIn this articlePepsiCo reports second-quarter earnings Thursday, with investors focused on whether improving North American snack demand and marketing investments can sustain the company’s turnaround. (Michael M. Santiago/Getty Images)PepsiCo next earnings report will test whether an early rebound in its North American business is turning into a durable recovery.