New Estimates of Prewar Gross National Product and Unemployment
详细审视了1929年前美国失业率和国民生产总值的修订估计，对比新旧数据假设，分析新序列的商业周期特性、波动性和序列相关性，并检验奥肯定律。
The paper examines in detail revised estimates of unemployment and gross national product for the United States before 1929. It first discusses the nature of the revisions to each series and contrasts the assumptions underlying the new data with those underlying the Kuznets GNP series and the Lebergott unemployment rate series. It then examines the business cycle properties of the new prewar estimates. In analyzes the volatility and serial correlation properities of the new macroeconomic series and investigates the Okun's Law relationship between unemployment and GNP, concluding with an evaluation of the assumptions underlying the old and new data.