Create permission

The permission for creating new content for content types is part of the standard drupal permissions.

In admin/people/permissions, in the "Node" section, there are permissions for each content type on your site.

For example "Page: Create new content" (if you have a content type called "Page")

Still, this would be a useful shortcut. There seems to be a patch for d6, might look into it later to port to d7 - see #789754: Add 'create' Content Access operations support