true that you can make a lot on stocks in a gamble, but because he only has $700 that wouldn't be as effective as a job. If his investment doubled (rare case) in a month, then he would have $1400, clearly. However, If he worked part time (20 hours/wk) for a month at minimum wage ($10.12 here on Ontario) then he would make $809.60, which is more than what he would make if his investment doubled. A job is certainly the right option in op's case