Being a Trader as opposed to IB

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<p>Why is this the case? How many analysts/interns are hired in S&T each year on an average, and how many for IBD? Someone told me that S&T, as a department, is much larger than IBD and contributes much more to the revenue of most BBs as opposed to IBD, so how come fewer S&T analysts are hired.</p>

<p>Also, the laid of BB traders aren’t competing with college students for first year analyst spots, correct? Isn’t the first year analyst class recruited exclusively from undergraduate schools?</p>