The main objective of this paper is to test the validity of the purchasing power parity in the Maghreb countries (namely, Algeria, Morocco and Tunisia). We apply the threshold autoregressive non-linear model (TAR) proposed by Caner and Hansen (2001). First, a review of literature on PPP is...

This paper investigates whether the Istanbul Stock Exchange (ISE) prices can be characterized as a random walk or mean reversion process in a non-linear framework. We employ an unrestricted two-regime threshold autoregressive (TAR) model with an autoregressive unit root based on bootstrap...

This paper investigates the behaviour of interest rates in Turkey using a two-regime TAR model with an autoregressive unit root. This method recently developed by Caner and Hansen [Threshold autoregression with a unit roots, Econometrica 69 (6) (2001) 1555–1596] allows to simultaneously...