A store manager in a nearby town has had a serious problem for several months.  It seems he has a  product (I’ll call the product the widget) which many consider a necessity. Customers seem to flood his store in search of this product and as a result by end of each week when he customarily restocks his shelves he has sold out and as a result he has a number of unhappy customers.  In order to avoid empty shelves what should he do, if anything, about the price he charges for the widget?