I am trying to remember the title of a story I read as a kid. The story, set in the future, revolves around individuals that chose to reduce their size or have kids of smaller than usual stature because the burden on the earth's resources has become too great. Those who do not undergo this procedure and/or allow their children to grow to normal height are discriminated against.
There was another story (or maybe the same tale) where the protagonist was rescued from some menace by his childhood toy, a teddy bear that had come to life or took form somehow.
I believe that this story (or stories) was in an anthology of children's science fiction published in the 1970s, maybe the late 1960s.