What type of shoe is characterized as a laced shoe with stitching across the vamp?

The type of shoe characterized as a laced shoe with stitching across the vamp is an Oxford. An Oxford shoe features a closed lacing system, where the eyelet tab is stitched under the vamp, giving it a sleek and polished appearance. The stitching across the vamp is a distinct feature that adds to its formal appeal. Oxfords are often made from leather and are associated with formal attire, making them a popular choice for business and dress occasions.

In contrast, other shoe types mentioned have different characteristics. The Derby has an open lacing system where the eyelet tab is sewn on top of the vamp, resulting in a more casual appearance. Loafers are slip-on shoes that do not have laces at all, and Bal refers to a style that is often less commonly recognized in this context. Thus, the defining features of the Oxford make it the correct answer for this question.