Unemployment was certainly a huge problem - a major cause was slavery, which made it harder for paid workers to find jobs. This is one reason why so many young men joined the army.
Actual statistics are hard to find, but apparently in the later years of the Empire, huge amounts of grain were needed just to feed the unemployed - one website talks about 100,000 people just in the city of Rome itself.
Actual statistics are hard to find, but apparently in the later years of the Empire, huge amounts of grain were needed just to feed the unemployed - one website talks about 100,000 people just in the city of Rome itself.