This paper analyzes the effects of buyer search costs and incomplete information, private and common knowledge of the sellers, on seller competition. It turns out that small changes in search costs may have large but quantifiable effects on pricing when the seller has good private knowledge about the buyer, but the common knowledge of the buyer valuations is lacking among the sellers. As an app...

It is not clear what a system for evidence-based common knowledge should look like if common knowledge is treated as a greatest fixed point. This paper is a preliminary step towards such a system. We argue that the standard induction rule is not well suited to axiomatize evidence-based common knowledge. As an alternative, we study two different deductive systems for the logic of common knowledg...

background: dental carries is a common disease during childhood. parents are directly responsible for the dental health of their and can play important role in preventing oral diseases in children. the aim of this study was to assess knowledge and attitude of mothers on oral health preschool children. methods: a cross - sectional study was conducted in isfahan health centers. 253 mothers of pre...

objective: knowledge and attitude of parents about attention deficit/hyperactivity disorder (adhd) is an important factor in management of the disorder in children. this study investigates the parents’ knowledge and attitude towards adhd, its symptoms, diagnosis, treatment and prognosis. method: in this cross-sectional descriptive study, the subjects were 150 parents (120 mother and 30 father) ...

The following work focuses on the legal status of offenses against press freedom under Criminal Code Empire Brazil, whether common crimes, special or political crimes. In light absence in historiography historical-legal investigations into this unique issue, article has sought to analyze historical sources, such as doctrines criminal and constitutional law by Empire’s authors, well contemporary...