Complex sentence: One key focus is the metaphor of economy that she analyzes in depth in order to show her readers the fact that the social structure of the world she is examining is dependent on this metaphor in order to function efficiently.
Split into simpler sentences: One key focus is the metaphor of economy that she analyzes in depth. She does this in order to show her readers that the social structure of the world she is examining is dependent on this metaphor in order to function efficiently.