This paper decomposes ecommerce business process into website quality and profitability and measures the efficiency in
each sub-stage and the whole process. By comparing with efficiency scores in CCR, BCC and Kao and Hwang (KH) (2008)
model, this paper finds that CCR and BCC model overvalues efficiency scores in contrast to KH model, which also
implicitly reveals the poor coordination among business processes. From a single sub-process, it is more critical to improve
website quality than profitability based on either sub-stage efficiency scores or return to scale analysis, while the
profitability plays a more important role in the whole stage. This paper thus gives managerial insight on resizing its scale
and optimizing resource allocation.