You want current data? Which way does the current flow bewtween Cuba and Miami? What percentage of the Cuban population is trying to get to Miami, via boat, raft, or defection? What percentage of the US population is trying to move to Cuba? Ask your professor those questions?
He said there are no starving or destitute people their like you might suspect, lying along the sidewalks or streets.The government may have their own way of dealing with people who choose not to work.
The most prized jobs are any jobs associated with the tourist industry where you have a chance of receiving tips. The government is the sole employer and wages are extremely low.