<p>我写论文需要美国GDP的月度数据,而我找到的只有美国GDP的季度数据, 我看有文章在处理这个问题时是这样写的:" quarterly GDP is interpolated to generate a monthly frequency"</p><p>他这个是怎么做的?</p><p>请各位高手指教~~不甚感激</p>
好像用ARMA模型做的,具体可以看:Zadrozny, Peter A. “Estimating a Multivariate ARMA Model with Mixed-Frequency Data: An Application to Forecasting U.S. GNP at Monthly Intervals,” Working
Paper 90-6, Federal Reserve Bank of Atlanta, August 1990.