Yes, they often are. Short stories tend to be less expensive because they are shorter in length and require less production effort.
Generally, short stories are cheaper. Novels are more complex and lengthy, so they cost more to produce and publish. Short stories have less content and therefore usually have a lower price tag.
In most cases, short stories are cheaper than novels. This is because they have fewer pages and less detail, resulting in lower production and distribution costs. However, it can also depend on the author's reputation and the publisher's pricing strategy.