Mealey's (December 10, 2018, 12:14 PM EST) -- TEXARKANA, Texas — Alleging a horizontal conspiracy in the online travel-booking industry, an online travel agency (OTA) filed a complaint in Texas federal court Dec. 6 against eight hotel chains that it claims have agreed to not bid on each other’s branded keywords on internet search engines, thus destroying a competitive marketplace and violating the Sherman Act (TravelPass Group LLC, et al. v. Caesars Entertainment Corp., et al., No. 5:18-cv-00153, E.D. Texas)....