、。
We need to think about what to do and carry out the research economically and efficiently.
Literal
Do-[thing-こと][object-を] think-and, economically [and-かつ] efficiently research [object-を] carry-out [genitive-の] necessity [subject-が] exists.
Formal written style typical of academic or institutional prose. ~かつ is the formal/written equivalent of や or と in the sense of 'and,' used specifically to connect parallel adverbs or adjectives in a professional register — 経済的かつ効率的に ('economically and efficiently'). The opening することを考え ('consider what to do') uses the て-form of 考える in its elevated written shape (the bare verb stem, here 考え, rather than 考えて) — a stylistic marker of formal writing. The whole sentence boils down to ~する必要があります ('there is a need to do X,' 'we need to X'), a very common polite way of expressing necessity.