5G networks are envisioned to provide consumers and industry with improved transmission performance and advanced communication possibilities. To deliver the promises on ushering fast downloads and low latency, the mobile network operators are called upon for formidable investment in network...

In This Note, We Present the Appropriate Forms of Shephard's Lemma, As Well As the Curvature and Homogeneity Properties, for the Case of a Rate-Of- Return Regulated Cost Function Where Capital Is a Quasi-Fixed Input.