Canadian province Ontario is taking the next step toward offering a standard income to all citizens: a Universal Basic Income pilot project, set to unroll this year.
From http://qz.com/633974/ontario-canada-announced-a-plan-to-test-universal-basic-income-for-all-citizens/ [qz.com]
The UBI is seen by some as a better, more efficient and effective replacement for a large collection of public services, (possibly including the minimum wage) and a way to mitigate reduced need for labor as automation eliminates jobs.
I believe this will be the largest population tried with a UBI and could provide useful insights about how it might work on a wide scale.
Related story: https://soylentnews.org/article.pl?sid=16/02/15/0053246 [soylentnews.org]