Sentence:  Harriet Pappenheim, a psychotherapist at Park Avenue Relationship Consultants who wrote “For Richer or Poorer,” a 2006 book on money in marriage, said that the repercussions could be acute for Wall Street <WSD>wunderkinds</WSD> who define their identities through their job titles and the size of their bonuses. 
Meaning of the word marked with <WSD> tags:  A highly talented or gifted individual; one who is successful at a young age.