To warn Scrooge to change his way of life while he can, as Marley is forced to travel the world in his death, tortured by remorse for his behaviour in life
Marley's chain
Weighs him down to highlight how he will never be free in the afterlife because of the appalling way he treated others whilst alive
Filled with objects associated with business to indicate the severity of his Earthly errors
Scrooge and Marley
Serve as a microcosm for the rich population in Victorian England, who thought the poor were idle and begrudged that their taxes paid for institutions such as the workhouse to help the poor
It is only in his death that Marley realises the error of his ways