It is one of the indisputable axioms in pro sports: Teams that open new stadiums raise prices for tickets, parking and food. After all, the owners have to recoup the hundreds of millions — or billions — of dollars in construction costs.

Arthur M. Blank, the owner of the N.F.L.’s Atlanta Falcons and Atlanta United of Major League Soccer, has tried to break the mold, at least for food and drinks. When he opened Mercedes-Benz Stadium last year, he included concession stands selling craft beer, designer sandwiches and high-end barbecue.

But he also included a value menu, with bottomless soft drinks, $2 hot dogs, $5 cheeseburgers and other affordable items. The idea was to give fans a break while acknowledging that the price to attend games, including personal seat licenses for season-ticket holders, was more expensive than in the Falcons’ previous home, the Georgia Dome.

The approach has paid dividends. Despite a 50 percent decrease in prices for food and nonalcoholic drinks compared to prices in the Georgia Dome, the amount spent per fan increased by 16 percent, Blank’s sports company, AMB Sports and Entertainment, said on Thursday.