The stories in James Joyce's book Dubliners are linked by setting and theme. All are set in the Irish city Dublin, and each one deals with some aspect of morality. Joyce described society as being in a "moral paralysis" and explained that his intention in writing these stories was "to write a chapter of the moral history of my country."
See the eNotes article on Themes and Characters (linked below) for discussion of how the stories reflect moral dilemmas in different times of life.
the stories of DUBLINERS are related by the setting and by the theme or common idea which is PARALYSIS? its by moral ,intellectual and emotional paralysis .
Look for examlpes of the "seven deadly sins" portrayed in individual stories.
For example "lust" in "The boarding House"
"sloth" in "counterparts"
"envy" in "A Little Cloud"
"wrath" in "Counterparts"
"pride" in "Clay
Also many of the stories have allusions to Dante
The best study on the subject is "The Unity of
dubliners" by Brewster Ghiselin" which can be found in "Dubliners" Text Criticism and Notes edited byRobert Scholes and A walteon Litz
Most of the characters are paralized in some way, spiritually
emotionally, vicitms of circumstance.