The agreed-on monthly base rate is $2708 for a 50% position

[GoodTaste]

The agreed-on monthly base rate for the current academic year is $2708 for a 50% position, which covers 20 hours of work per week. (This is a standard appointment for many graduate student workers, although most work significantly more hours than that.)

Source: Science After historic strike, UC grad students say university isn’t honoring pay agreements

Does "a 50% position” mean "a position on which you only carry out 50% amount of the full time job"? That is, this position is simply a part time job. Just a guess.

 

[emsr2d2]

Yes, it's a part-time job. The standard working week (in the UK, at least) is still considered to be 40 hours, so a 50% position is, as stated, 20 hours per week.