發送短信 : Detecting macroeconomic phases in the Dow Jones Industrial Average time series

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| \  / ||  /_   _// \ \\ / //   / _ \\   / ____|| 
|  \/  ||   -| ||-   \ \/ //   | / \ || / //---`' 
| .  . ||   _| ||_    \  //    | \_/ || \ \\___   
|_|\/|_||  /_____//    \//      \___//   \_____|| 
`-`  `-`   `-----`      `       `---`     `----`