You are required to write a paper (no page limit) about any financial or economic time series that you are interested in. Such examples include Hong Kong stock market Hang Seng index return, United States S&P 500 index return, the return of any individual stock (for example, APPLE), bond yields, foreign exchange rates, Hong Kong GDP growth, and Hong Kong housing price.

1. What is the time series you are interested in? Why are you interested in it? Is it important? 2. Download data of the time series from Yahoo Finance, Federal Reserve Bank of Saint Louis, or any other sources. 3. Build a model for the time series. Make sure that the model is adequate. 4. Perform forecasts based on the model you build and plot the forecasts. 5. Do the forecasts have any real-world implications? Such as for investors? For companies? For government policies? 6. You could also ask any other interesting questions related to the time series. For example, you could study the relationship between the time series and other time series. 7. Please include relevant Tables and Figures for your analysis, if any. 8. Please include references you cite, such as articles, books, newspapers, etc., at the end of the paper, if any.