An electric wine opener makes for a great gift, and this super popular Oster model is on sale—find out more. $3,500 iPhone possible? Apple iPhone 📱📷 Is there a 'safe' option?

The Oster 2086062 Air Fryer Oven & Multi-Cooker, as the product name implies, is more than an air fryer. Rather than a frying basket, this model has a 10.5-quart interior.

Oster’s model, in short, helps reveal just how complex—and in some cases counter-intuitive—the dynamics of nonprofit strategy can be. No wonder that our friend and colleague Jim Collins, ...