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.

The design philosophy, construction and measured performances of a plane-reflector augmented box-type solar-energy cooker are presented. The experimental solar cooker consists of an aluminum plate absorber painted matt black and a double-glazed lid. The bottom and sides are lagged with...