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   _____     ___      ______    ______            
  / ___//   / _ \\   /_____//  /_   _//   ____    
  \___ \\  / //\ \\  `____ `    -| ||-   |    \\  
  /    // |  ___  || /___//     _| ||_   | [] ||  
 /____//  |_||  |_|| `__ `     /_____//  |  __//  
`-----`   `-`   `-`  /_//      `-----`   |_|`-`   
                     `-`                 `-`

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Text this: Educational level, GDP & wages : a study on the direction of causality