Alice Munro - her mastery of the short story genre

Any Alice Munro fans out there? It is due time to honour her memory with an article on her mastery of the short story genre. Your article could focus on one aspect of her story telling. For example:

Her narrative techniques.
The Nobel Prize committee characterised her writing thus: "A brief short story can often cover decades, summarising a life, as she moves deftly between different periods. No wonder Alice Munro is often able to say more in 30 pages than an ordinary novelist is capable of in 300. She is a virtuoso of the elliptical and … the master of the contemporary short story."
What techniques does she use to create scope, depth and complexity in a short space of 30 pages?

Her characters.
To quote the Nobel Prize presentation speech again, "Munro writes about what are usually called ordinary people, but her intelligence, compassion and astonishing power of perception enable her to give their lives a remarkable dignity – indeed redemption – since she shows how much of the extraordinary can fit into that jam-packed emptiness called The Ordinary."
In particular, Munro writes about women and family relationships. What kinds of female characters end up in her stories? What do they have in common? What about her characters that leaves an impression on the reader?

Her favourite themes.
Are there certain major themes that emerge across the large number of her stories? What are they? Did her treatment of the themes change over the decades of her career and did they reflect changes and transformations of Canadian society?

You could do a thematic or character study across the corpus of her works, or offer a literary analysis of one or two particular stories.