Basic Income Guarantee (BIG)

What would the world be like if all low income people were given a guaranteed cash income for survival (c.$17,000) with no strings attached? How about if this plan included an incentive to work to increase their minimum income? What would they do with this money? What would be the social consequences of this? This concept will soon have some trial runs in Ontario, Canada. It is called the Basic Income Guarantee (BIG).