It's taught that it can be done. I personally cannot say it actually works, but it is taught that it can be done. It's interesting to know that this is not actually a Buddhist teaching. Because some years ago I discovered that my parents, when they had a family member die, they would always write a check and send a donation to the Children's Hospital there in the name of the person who died. The hospital then gets this check, and sees, "Oh, this is from so and so, this is because of so and so's death." Now, does that person who died actually get the Kamma? It's not quite clear, I can't answer that, but what we do know is that the hospital is then happy that that person ever lived, and happy that that person had a good friend who liked that person enough to make a donation in their name. That's interesting, because that person who died had been nice to one other person, a donation was given in the dead person's name. Isn't it really part of that person's Kamma then? When you think about this in a logical, mathematical way, whatever, it's seems like yeah, the hospital would never have gotten a donation if that person hadn't been nice to my parents. It's interesting in that way. So dedicating and sharing Kamma, doing something for someone who's died, it's taught within Buddhism that it does help that person who died in some way. How much, how little, I don't know.