This work aims to analyse the cointegration and the causality
relationship between inflation and unemployment by using nonlinear
A.R.D.L. and two popular nonlinear causality tests for the period from
1960 to 2016 in Japan, Turkey, the U.S.A. and from 1970 to 2016 in
France. This study complements the previous empirical papers.
However, it differs from the existing literature with simultaneous
use of nonlinear A.R.D.L. and causality methods. Nonlinear A.R.D.L.
determined that there is a long run relationship between inflation
and unemployment; between economic growth and unemployment
for Japan, France, the U.S.A. and Turkey