Stober, Emmanuel Olusegun. 2015. “The Validity of Okun’s Law: An Assessment of United Kingdom’s Unemployment-Output Relationship”. International Journal of Economic Practices and Theories 5 (1):10-15. http://ijept.eu/index.php/ijept/article/view/The_Validity_of_Okun_Law_An_Assessment_of_United_Kingdom_Unemp.