Fragmentary consumption = Fragmentary Identity?

So in summary, the focus on FRAGMENTATION OF IDENTITY can be argued to be linked to FRAGMENTARY CONSUMPTION as two outcomes of a very FRAGMENTARY ALIENATED WORLD that focusses on surface rather than content, style over substance.

This new POSTMODERN WORLD is globally linked, but locally divided. In other words, we are more linked and interdependent on each other as global citizens and yet removed from each other at both the global and the local level. In effect, another key characteristic of postmodernism is the development of fragmented, alienated individuals living (precariously) in fragmented global societies.

So is there a way in which can understand and contextualise these shifts? One approach would be to look at the key conceptual ideas and thinkers that articulate arguments and key approaches to this topic.