Assessing the Variability of Inflation
精确定义了通货膨胀变异性的概念，构建模型将水平/变异性假说表述为回归模型中的异方差性，并用澳大利亚数据实证检验，为研究通胀波动与经济表现的关系提供新方法。
Although there has been much argument over the impact of variable inflation rates upon economic performance, there has been surprisingly little attempt to define the term "variability of inflation" carefully or to test proposed hypotheses connecting variability and the level of inflation. Precise definitions are given in the paper and a model is constructed showing that the level/variability hypothesis may be formulated in terms of the presence of heteroscedasticity in a regression model. This theoretical model is used to criticize existing studies, while an empirical study with Australian data illustrates the application of the approach.