Deciding whether a time series that appears nonstationary is in fact fractionally integrated or subject to structural change is a diffcult task. However, various tests have recently been introduced for distinguishing long memory from level shifts and nonlinearity. In this paper, three testing...

This paper offers a new insight into real exchange rate behaviour in Latin America. Using quarterly data over the sample period 1973Q2-2005Q4, the analysis indicates that the real exchange rates of Argentina, Brazil and Venezuala can be described as non-linear trend stationary processes. This...