The threshold autoregressive (TAR) model developed by Howell Tong has been
enormously influential in economics. A simple illustration of the depth of this influence is to …

Many economic theories depend on the presence or absence of a unit root for their validity,
and econometric and statistical theory undergo considerable changes when unit roots are …

This paper proposes a simple testing procedure to distinguish a unit root process from a
globally stationary three‐regime self‐exciting threshold autoregressive process. Following …

This paper attempts to identify the monetary policy indicator that better explains the Sri
Lankan monetary policy transmission mechanism. This study also estimates how shocks …

The objective of this paper is to investigate the relationship between per capita emissions
(CO _ 2 CO 2 and SO _ 2 SO 2) and economic growth (per capita GDP) in the UK using a …

Using a long span of data in Spain, Esteve and Tamarit (2012b) reported evidence of a
strong link between per capita income and per capita CO2. In this paper we extend their …

This paper considers the test of a unit root in transitional autoregressive models. In
particular, we develop the asymptotic theory of the inf-t test for the null hypothesis of a unit …

This article develops a statistic for testing the null of a linear unit root process against the
alternative of a stationary exponential smooth transition autoregressive model. The …

Previous studies have reported that gold prices and crude oil prices seem to be related, with
causality generally running from oil prices to gold prices. This paper revisits the question …

Standard unit‐root tests are known to be biased towards the non‐rejection of a unit‐root
when they are applied to time series with non‐linear dynamics. Unfortunately, not much is …