On Unit Roots and the Empirical Modeling of Exchange Rates
这篇论文检验了即期和远期汇率对数自回归表示中是否存在单位根，结果解释了近期外汇市场实证论文中一些相互矛盾的结论。
ABSTRACT Tests are conducted for the presence of unit roots in the autoregressive representations of the logarithms of spot and forward exchange rates. The results from these tests provide one explanation for some of the conflicting conclusions which emerge from recent empirical papers on the foreign exchange market.