Recently I have taken up reading Proudhon. I have started with his work "What is Property?" Much of the work seems wrong, false, or just somehow off. I may get to that, and I may not. However, because he is really (in my opinion) adding argument after argument after argument as to why property is a bad thing (as opposed to possession, he was most certainly not a communist), it is not necessary that all--or even most-- of his arguments succeed in order for his larger point (that property should be replaced with possession) to be proven.
One of the more curious bits of thought that Proudhon advances regards the division of labor. To explain what I think he is getting at, I would have to start by saying that he thinks that labor should be divided and paid for not by time (as a modern factory 8 hour day works), but by the quantity of production or the accomplishment of a number of chores. He basically asserts that there should be some sort of equitable division of this labor, and each person should only perform his share. For that share, he should be paid. Once he has performed his work, he can do a number of things, of course. He can spend the time in leisure, raise a family, cultivate himself, etc... However, if he should decide that he wants to do more work, he would be interfering in his fellow man's ability to make a living. Of course, he could assist his slower fellow worker. However, he should not demand any kind of payment for this assistance. If I understand him correctly, to do so would violate the equal rights to provide for oneself.
This perhaps seems to be the most frustrating kind of error that Proudhon makes. That is the assumption of a fixed sum of wealth, or in this case, jobs. There seems to be a number of jobs, we all devide them among ourselves, and we split the pay equally. Of course this is wrong. There is no fixed sum total of jobs, wealth, or whatever. The number of jobs to perform, products to make, or wealth to be accumulated is not fixed. It is expanding. If I am super productive, I benefit myself. There is no limit to the number of jobs, so you can probably find something else to do. If I do this better than you, than you should do something else.
Writing this down seems awefully harsh. It feels like I am saying find another job, one that you can do better. But it is not as if there is an infinite number of jobs. And many cannot find a new job because they live in the wrong town, don't have enough experience, etc....
Nevertheless, because the supply of jobs is not fixed, there is no way to just divide them all up and share equally in the work and wages. That would limit the number of jobs. That would limit productivity. It appears to be a mistake.