Ken Ortmann wrote:

> How can I prevent a pie crust from shrinking when it's baked without a
> filling (pre-baked)?
>

There are several ways to prevent this. One is to prick the crust, then
fill it with dried beans, or pie beads, which are made from ceramic.
There is also a chain of beans (google for cooks catalogs) that you can
place at the bottom to keep the crust from puffing up and shrinking.