The New Rules of Off-Price Retail

Josh Kaplan could not have picked a better time to launch his new start-up, Ghost.

The company, which came out of stealth mode last week, is a digital marketplace that connects brands with off-price retailers, sample sale operators and other buyers that know how to discreetly liquidate unsold inventory.

There’s plenty of inventory to move right now. Retailers globally are sitting on a high volume of merchandise, from shirts, dresses and…