Which literary techniques does the author use to explore the theme of social injustice in ‘A Christmas Carol’?

Tiny Tim is the ultimate symbol of social injustice (before the social justice of the end of the story!). He embraces the spirit of Christmas, as Dickens encourages readers to do, and is relentlessly positive and innocent. Even his alliterative, descriptive name tells us a lot about his character, this kind of descriptive nickname can be described as a ‘moniker’ (which is typical of Dickens). tiny evokes the image of an innocent child and makes his suffering and ‘death’ even more heart-breaking. Because the Cratchit’s struggles are the result of the social injustice working class families would typically suffer, the reader is encouraged to condemn the oppressive class system and excessive wealth of Scrooge-like middle classes.