Oum, Tae Hoon; Tretheway, Michael W; Zhang, Yimin - In: Journal of Business & Economic Statistics 9 (1991) 1, pp. 119-23
This article investigates the measurement of returns to scale (RTS) via a cost function in the presence of quasi-fixed inputs. Caves, Christensen, and Swanson (CCS) proposed estimation of a variable-cost function and derived a formula for computing RTS from it. This article extends the CCS...