Data Envelopment Analysis (DEA) is a mathematical programming technique for evaluatingthe relative efficiency of a set of Decision Making Units (DMUs) and can also be utilized forsetting target. Target setting is one of the important subjects since according to its resultsefficiency can be increased. An important issue to be currently discussed, is to set targetwhile considering share data. The...

In the age of digitalization, customer and consumer data have become a valuable source information for companies. However, to obtain these data, companies depend on peoples' willingness share (WTS) their private with them. By means large-scale online experiment more than 20,000 participants, we investigated extent which WTS is affected by contextual factors. We complement extend previous resear...