Average US hourly wages have doubled over the past two decades, rising from $16 to $32, economist Jeremy Horpedahl says. He notes Americans had already seen $4-

Average US hourly wages have doubled over the past two decades, rising from $16 to $32, economist Jeremy Horpedahl says. He notes Americans had already seen $4-a-gallon gasoline by 2008, underscoring the gap between wage gains and price anxiety.