I do not know of any industry in which contractor agreements with variable payments that are dependent on the quality of the output are common practice. There is often an agreement on what it means to “complete the work” but in almost any case both your downside and your upside are limited by a guaranteed upfront payment, and a conditional final payment. But it’s almost never the case that you can get 2x the money depending on the quality of your output, which seems like a necessary requirement for some of the incentive schemes you outlined.
What does this have to do with anything? You originally said:
Youu pay your plumber if they show up, not only if they successfully fix your toilet.
I don’t see the connection between “should you pay your plumber even if they don’t actually fix your toilet” and “should you pay your plumber twice as much if they fix your toilet twice as well”; the latter seems like a nonsensical question, and unrelated to the former.
I do not know of any industry in which contractor agreements with variable payments that are dependent on the quality of the output are common practice. There is often an agreement on what it means to “complete the work” but in almost any case both your downside and your upside are limited by a guaranteed upfront payment, and a conditional final payment. But it’s almost never the case that you can get 2x the money depending on the quality of your output, which seems like a necessary requirement for some of the incentive schemes you outlined.
What does this have to do with anything? You originally said:
I don’t see the connection between “should you pay your plumber even if they don’t actually fix your toilet” and “should you pay your plumber twice as much if they fix your toilet twice as well”; the latter seems like a nonsensical question, and unrelated to the former.