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<p>Well, engineering jobs in the US pay a lot more than PhD student stipends. That probably has something to do with it, especially if the American engineering BS students are graduating with student loans that they need to pay off.</p>
<p>On the other hand, entering a PhD program is a way for an international student to attend a US university on a full ride, unlike the case of international students doing undergraduate work in the US where they typically have to pay list price.</p>
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<p>In class only, or all the time on school grounds?</p>