Retailers during the upcoming holiday season could find themselves without enough seasonal elves to stock their shelves. More importantly, they could find themselves without enough helpers to process those increasingly crucial, and labor intensive “buy online, pick up in store”, and curbside delivery orders. Competition for seasonal retail workers is expected to be fiercer than ever this year, fueled by low unemployment and forecasts for healthy holiday sales. That competition, and new digital tools that let seasonal employees shop around for the best-paying part-time jobs, will drive up labor costs for retailers. Read more at Forbes.