“…and Summers (1986), Camarero and Tamarit (2004), Caner and Hansen (2001), Chang and Lee (2011), Jaeger. and Parkinson (1994), Gil-Alana (2001, Lee and Chang (2008), Leon-Ledesma (2002), Lee (2010), Lin., Kuon, and Yuan (2008), Mohan. et al (2008, Roed (1996), Song and Wu (1998) and Yilanci (2008), who found supportive evidence of the natural rate hypothesis for the US labour market.…”