Study after study has concluded that stadiums aren’t effective economic development drivers. But a leading urban growth researcher says Orlando and Las Vegas are exceptions because of the strength of their regions’ tourism economies. The Raiders are building a 65,000-seat, $1.8 billion indoor stadium at Interstate 15 and Russell Road using $750 million of public money authorized by the Nevada Legislature. Las Vegas has a leg up on many cities, because it has an airport at which business people can catch a nonstop flight to virtually any domestic destination. Panelist Cathy Tull, chief marketing officer of the Las Vegas Convention and Visitors Authority, said the presence of out-of-town media for playoff games featuring the Vegas Golden Knights has given the city media mentions that money can’t buy. Another issue receiving the panel’s attention is the need for mass transit with all the teams, venues and anticipated visitation they will generate. Panelists also discussed the prospect of attracting big events like the Super Bowl, the NFL draft and NCAA tournaments.