This paper focuses on revealing the ambivalent situations in teachers' risk perceptions and teachings. Three ambivalent situations are found. The first is that, although the teachers reported that collective-related risks are more important than personal-related risks, they are less active in...

A practical model and an associated method are developed for providing consistent, deterministically correct responses to ad-hoc queries to a database containing a field of binary confidential data. COUNT queries, i.e., the number of selected subjects whose confidential datum is positive, are to...

The rapid pace of technological innovation necessitates that information technology (IT) services firms continually invest in replenishing the skills of their key asset base, the human capital. We examine whether human capital investments directed toward employee training are effective in...