Speight, Alan; McMillan, David - In: Applied Economics Letters 8 (2001) 12, pp. 755-759
This paper examines the time series properties of the monthly black-market dollar exchange rates of the Bulgarian lev, Czech koruna, East German mark, Hungarian forint, Polish zloty, Rumanian lei and Soviet ruble over the period 1955-1990. All series other than the mark exhibit a unit root in...