For more than a century, America's sports stadiums have evolved from modest, private ballparks into billion-dollar play-palaces for the rich-built increasingly on the backs of taxpayers. Government commitments to major-league venues are approaching $50 billion, and a looming wave of new construction threatens to double public outlays by the end of the next decade. Elected leaders justify the massive subsidies by arguing that stadiums are economic catalysts, despite overwhelming evidence that sports venues are unwise public investments. Why does this keep happening? The refrain is always the same: This one will be different. The Atlanta Braves's Truist Park in Cobb County, Georgia is the latest example. Marketed as a game-changing mixed-use development that would create a year-round economic hub, the project has fallen far short of its boosters' lofty projections-just like all the venues that came before it. In This One Will Be Different, sports economist J.C. Bradbury draws from decade