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Is The Us Economy Recovering?. Angela Sordello Christopher Friedberg Can Shen Hui Lai Hui Wang Fang Guo . Outline. Introduction Original Data Pre Whitening Comparison of Models Modeling Model Validation
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Is The Us Economy Recovering? Angela Sordello Christopher Friedberg Can Shen Hui Lai Hui Wang Fang Guo
Outline Introduction Original Data Pre Whitening Comparison of Models Modeling Model Validation Forecasting Conclusion
Gross Private Domestic Investment • Gross Private Domestic Investment (GPDI) is a measure of fixed investment and the change in private inventories • Used as an indicator to assess the state of the economy • We wanted to see if the United States economy is still in a recession
Original Data St. Louis Federal Reserve Bank The data is quarterly and has been seasonally adjusted GDPI is measured in billions of US dollars
Original data Correlogram of original data Histogram of original data
Pre Whitening Continued :First difference Line graph Histogram
Modeling Regression with AR(1) MA(1) MA(4)
Modeling Correlogram Correlogram with residuals squared
Modeling Correlogram with residuals squared Correlogram
The GDPI is increasing. It is signaling the US economy is recovering.