Text this: Efficiency of the Philippine stock exchange using serial correlation and variance ratio tests

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