Describir: Random processes and the growth of firms :

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